hirundo-io/mmlu-pro-free-text · Datasets at Hugging Face

question stringlengths 9 4.67k	answer stringlengths 1 606	category stringclasses 14 values	original_split stringclasses 2 values
Under what conditions is the net electric flux through a closed surface proportional to the enclosed charge?	under any conditions	physics	test
Mr. Glass borrowed $250 from the ABC Finance Company. He agreed to repay the $250 in five monthly installments, with interest at 3% a month on the first $150 and 2% a month on any part of the loan over $150. What was his total interest cost?	$21	business	test
Samantha has 342 baseball cards. Perry has 184 baseball cards. How many more baseball cards does Samantha have than Perry?	158	math	test
Given that Bismuth has a density of 9.80 × 10^3 kg m^-3 and a mass absorption coefficient for a gamma radiation corresponding to a half thickness of 12g cm^-2. What is the percent decrease in intensity at a depth of 1.5 cm?	57.15%	chemistry	test
Statement 1 \| A factor group of a non-Abelian group is non-Abelian. Statement 2 \| If K is a normal subgroup of H and H is a normal subgroup of G, then K is a normal subgroup of G.	False, False	math	test
According to the Gestalt organizing principles of perception, when you look at, "i n car n a t e," you tend to notice the word car rather than in, nate, at, or ate, because of	proximity	psychology	test
Where did the world's first civilization develop?	Mesopotamia	history	test
Consider a screw used in translation along with a 22 mm. insidediameter and 38 mm. outside diameter collar. The screwhas a mean; diameter of 18 mm. and has a single trapezoidalmetric thread cut with a pitch of 4 mm. Determine thetorque required to raise a load of 500 kg, if both the collarand the threads have a coefficient of friction of 0.3.	39.82 N-m	engineering	test
A car battery supplies a currentI of 50 amp to the starter motor. How much charge passes through the starter in (1/2) min?	1500 coul	physics	test
Calculate the pH of a solution whose hydrogen ion concentration is 2.7 × 10^-6 M.	5.57	chemistry	test
A landlord leased a commercial building to a tenant for five years. Rent was payable on the first day of each month, and the landlord retained the right to terminate the lease if the tenant defaulted. The lease term ended 18 months ago. However, the tenant has stayed in possession of the building and has continued to pay the rent on time. The landlord has continued to accept the rent. The fair rental value of the building is now substantially more than what the tenant has been paying, and the landlord recently found a third party who will pay the higher rent. When the tenant paid the rent six weeks ago, the landlord accepted paid the rent six weeks ago, the landlord accepted the rent but told the tenant in writing that she had to vacate at the end of the month. The tenant, who is still in possession of the building, has informed the landlord that she does not want to move and is willing to pay the current fair rental value. The landlord has asked his lawyer for advice regarding the right to possession. Who should the lawyer say is entitled to possession?	The landlord, because he gave proper notice to terminate the tenancy.	law	test
A surgical support can be used for:	herniation around the stoma.	health	test
An accounting professor has been called as a defense expert witness in a white-collar criminal case. He testified that accounting records conclusively demonstrated that the defendant had not committed any type of fraud. On cross-examination of the professor, the prosecuting attorney asked him if he was familiar with a particular treatise. The professor responded affirmatively. The attorney then asked him if the treatise was accepted as authoritative and if he was aware of the conclusions regarding the ability of accountants to detect fraud. The professor responded in the affirmative. The prosecutor now attempts to read the following section of the treatise into evidence: "It is virtually impossible to state with conclusive certainty the existence, or lack thereof, of fraud in the majority of white-collar crime cases, given the sophistication of defendants and the variety of accounting methods available. "On objection by the defendant's attorney, the trial judge will	overrule the objection and permit only the contradictory statements to be read into evidence.	law	test
Congress has embarked on another round of expansionary fiscal policy to boost employment and get reelected. As chair of the central bank how would you reduce the "crowding-out" effect and what macroeconomic problem might your policy exacerbate?	Lower the discount rate risking inflation	economics	test
Research on Helms’s White Racial Identity Development Model suggests that a White therapist will usually be most successful when working with a client from an ethnic/racial minority group when the therapist is in which stage?	autonomy	psychology	test
At approximately what temperature will water boil ifthe elevationis 10,000 ft?	193°F	engineering	test
Cell motility, as viewed in a cultured fibroblast, encompasses all of the following EXCEPT	clathrin	biology	test
A company invested in a new machine that will generate revenues of $35,000 annually for seven years. The company will have annual operating expenses of $7,000 on the new machine. Depreciation expense, included in the operating expenses, is $4,000 per year. The expected payback period for the new machine is 5.2 years. What amount did the company pay for the new machine?	$166,400	other	test
You are given that the ionization energy of a hydrogen atom is 13.527eV, calculate the second ionization energy of a helium atom. The general equation for the lines in the emis-sion spectra of one electron system such as H, He^+ , Li^2+ and Be^3+ is given as ѵ= Z^2 R_H{(1/n^2_1) - (1/n^2_2)} whereѵ= the wave numbers of emission lines and Z is the nuclear charge of the atom concerned.	54.108eV	chemistry	test
Two trains moving along parallel tracks in opposite directions converge on a stationary observer, each sounding its whistle of frequency 350 cycles. s^-1. One train is traveling at 50 mph. What must be the speed of the other if the observer hears 5 beats per second. The speed of sound in air is 750 mph.	40.5 mph or 59.2 mph	physics	test
A ladder 9 meters in length is leaning against a vertical wall on level ground. As the bottom end of the ladder is moved away from the wall at a constant rate of 2 meters per second, the top end slides downward along the wall. How fast, in meters per second, will the top end of the ladder be sliding downward at the moment the top end is 3 meters above the ground?	4*sqrt(2)	math	test
A flat piece of plastic, area A = 1 ft^2 and thickness b = 0.252 inch, was tested and found to conduct heat at a rate of 3.0 watts in steady state with temperatures of T_0 = 24°C and T_1 = 26°C on the two main sides of the panel. Find the thermal conductivity of the plastic in cal sec^-1cm^-1 (°K)^-1 at 25°C.	2.47 × 10^-4 cal sec^-1 cm^-1 (°K)^-1	engineering	test
What is the value of p in 24 = 2p?	p = 12	math	test
In the event of bankruptcy, what is the order of payment of bonds, common stock, and preferred stock?	Bondholders, preferred stockholders, common stockholders	business	test
This question refers to the following information. "We found that not only was it a civil war, an effort by a people who had for years been seeking their liberation from any colonial influence whatsoever, but also we found that the Vietnamese whom we had enthusiastically molded after our own image were hard put to take up the fight against the threat we were supposedly saving them from. "We found most people didn't even know the difference between communism and democracy. They only wanted to work in rice paddies without helicopters strafing them and bombs with napalm burning their villages and tearing their country apart. They wanted everything to do with the war, particularly with this foreign presence of the United States of America, to leave them alone in peace, and they practiced the art of survival by siding with whichever military force was present at a particular time, be it Viet Cong, North Vietnamese or American." John Kerry, 1971 The two political issues that most concerned the Counterculture Movement of the 1960s were	U.S. involvement in Vietnam and the civil rights movement	history	test
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K. The volume of a certain liquid varies with temperature as $$ V=V^{\prime}\left\{0.75+3.9 \times 10^{-4}(T / \mathrm{K})+1.48 \times 10^{-6}(T / \mathrm{K})^2\right\} $$ where $V^{\prime}$ is its volume at $300 \mathrm{~K}$. Calculate its expansion coefficient, $\alpha$, at $320 \mathrm{~K}$.	$1.31 \times 10^{-3}$$\mathrm{~K}^{-1}$	chemistry	test
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K. For a van der Waals gas, $\pi_T=a / V_{\mathrm{m}}^2$. Calculate $\Delta U_{\mathrm{m}}$ for the isothermal expansion of nitrogen gas from an initial volume of $1.00 \mathrm{dm}^3$ to $24.8 \mathrm{dm}^3$ at $298 \mathrm{~K}$.	131$\mathrm{J} \mathrm{mol}^{-1}$	chemistry	test
Differentiate tariffs from quotas as barriers to free trade.	Tariffs are taxes on imported goods to raise revenue and protect domestic industries, while quotas set a maximum on the quantity of a good that may be imported during a given time period.	economics	test
Select the best translation into predicate logic: Not all lobsters are red.	~(∀x)(Lx ⊃ Rx)	philosophy	test
'Scientific' theories in the nineteenth century tried to explain race in naturalistic terms. Which of the following ideas was not considered?	height	other	test
A helium-neon laser (used in supermarket scanners) emits light at $632.8 \mathrm{~nm}$. Calculate the frequency of this light.	4.738$10^{14} \mathrm{~Hz}$	chemistry	test
A multiple disc clutch is used to operate the speed regulating gears of a lathe. If the torque delivered by the clutch is 400 lbs.-in., evaluate the number of discs necessary and the force acting on them while the clutch is in operation. Assume a factor of safety of 2 and limit the disc friction surface sizes between 5 in. and 3 in.	Three discs, Force on the discs = 1028 lbs.	engineering	test
What is wrong with the following statement? "In many desert plants the roots grow very deep because they are searching out for deep underground water to supply the plant." Explain your answer.	The statement is oversimplified and teleological, implying goal-directed behavior in plants which is not possible. The True reason for desert plants having long roots is natural selection.	biology	test
10 cc of battery acid (density 1.21) is diluted to 100 cc. 30 cc of the dilute solution is neutralized by 45 cc of 0.5 N base. What is the normality of the diluted acid? What is its strength in grams per liter? What is the strength of the undiluted 1.21 density acid in g/l?	0.75 N, 121 g/l, 1210 g/l	chemistry	test
In an SR latch built from NOR gates, which condition is not allowed	S=1, R=1	engineering	validation
Abraham Maslow proposed the idea that some motives are more imperative to survival than others. Which of the following approaches expresses this?	Hierarchy of needs	psychology	test
Economy X is an open economy with flexible exchange rates. Economy Y is closed. Ceteris paribus expansionary monetary policy is	less effective in X because the policy will decrease net exports.	economics	test
Find the Laplace transform of f(t) = cos kt, for t > 0, where k is a real constant.	s / (s^2 + k^2), for s > 0	engineering	test
A chemist wants the percent dissociation of HC_2H_3O_2 to be 1 %. If theK_dissof HC_2H_3O_2 is 1.8 × 10^-5, what con-centration of HC_2H_3O_2 is required?	1.76 × 10^-1 M	chemistry	test
A defendant was indicted and arrested for bank robbery. The defendant had an initial appearance before a magistrate judge in which he was notified of the charges and told that counsel would be appointed for him the next day. The police then required the defendant to participate with other prisoners in a lineup in which each person had to wear a white T-shirt and say, "Put your hands in the air." At the lineup, witnesses to the bank robbery identified the defendant as the bank robber. The next day, the defendant was arraigned on the charges. The defendant argues that his Sixth Amendment right to counsel was violated when he was denied counsel at two critical stages of the proceeding: his initial appearance in court before the magistrate initial appearance in court before the magistrate judge and the lineup identification. Was the defendant's Sixth Amendment right to counsel violated?	Yes, based only on the denial of counsel at the lineup.	law	test
Given the below information, what is the return on invested capital (to the nearest tenth of 1%) ? Net investments (December 31, 1966) $250,000 Net investments (December 31, 1967) $350,000 Net sales year ended December 31, 1967 $600,000 Net income year ended December 31, 1967 $ 25,000	8.3%	business	test
During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which statement is most likely to be helpful in correcting this student's misconception?	Characteristics acquired during an organism's life are generally not passed on through genes.	biology	test
At time 0, five jobs are available for execution on a single processor, with service times of 25, 15, 5, 3, and 2 time units. Which of the following is the minimum value of the average completion time of these jobs?	92/5	computer science	test
In conducting international market research, there are three types of equivalence. Which of the following is NOT one of the equivalences?	Market equivalence.	business	test
One morning, an employee arrived at work and found his boss passed out on the floor of his office. The employee determined that his boss was not breathing, immediately rendered CPR to his boss, and succeeded in reviving him. The employee then called the paramedics, who took the boss to the hospital. Two week later, the boss returned to work. Grateful for the employee's quick action in saving his life, the boss said to the employee, "You'll have ajob with me for life. "Which of the following best characterizes the legal relationship between the boss and the employee on that date?	Since the employee gratuitously rendered assistance to the boss, there was insufficient consideration to support the boss's subsequent promise to provide the employee with lifetime employment.	law	test
A canning company bought a $15,000 piece of machinery for its vegetable farm. The machinery is expected to last six years at which time it will have no residual value. The company wishes to use the maximum percentage allowable under the declining-balance method for computing the depreciation. Find the depreciation and book value for the first three years of operation.	Year 1: $5,000, Year 2: $3,333, Year 3: $2,222	business	test
Languages with a structure that implements abstract data types (e.g., a C++ class) can prevent access to components of this structure by all operations except those that are part of this structure. However, definitions of such a structure often contain declarations of components of the structure (e.g., the header file for a C++ class may contain declarations of its private components). For such a language, an object's name could be bound at run time to stack storage for its component values (direct representation) or to a stack pointer referencing heap storage for its component values (indirect representation). Which of the following statements about comparisons between direct and indirect representations is (are) true? I. Indirect representation noticeably increases compilation time. II. Direct representation decreases the time needed to access components of a variable. III. When the storage size of some private component of a variable changes, indirect representation minimizes the number of recompilations of source modules that must be performed.	II and III only	computer science	test
Which of the following methods of detecting breast cancer involves exposure to radiation?	Mammography	other	test
This question refers to the following information. "We found that not only was it a civil war, an effort by a people who had for years been seeking their liberation from any colonial influence whatsoever, but also we found that the Vietnamese whom we had enthusiastically molded after our own image were hard put to take up the fight against the threat we were supposedly saving them from. "We found most people didn't even know the difference between communism and democracy. They only wanted to work in rice paddies without helicopters strafing them and bombs with napalm burning their villages and tearing their country apart. They wanted everything to do with the war, particularly with this foreign presence of the United States of America, to leave them alone in peace, and they practiced the art of survival by siding with whichever military force was present at a particular time, be it Viet Cong, North Vietnamese or American." John Kerry, 1971 The conflict described above is most likely a result of which of the following doctrines?	Containment	history	test
Statement 1\| Highway networks were introduced after ResNets and eschew max pooling in favor of convolutions. Statement 2\| DenseNets usually cost more memory than ResNets.	False, True	computer science	test
Indicate the equilibrium equation and constant expression for theautoprotolysisof liquid ammonia. If KNH_3 = 10^-22 , how many molecules of ammonia are ionized in 1 mole of ammonia? Assume a density of 0.771g/ml for ammonia.	2.66 × 10^11 molecules	chemistry	test
If 2.02 g of hydrogen gas occupies 22.4 liters, calculate the density of hydrogen gas in grams per milliliter.	9.0 × 10 ^-5 g/ml	chemistry	test
The amount of air drag on an 0.8-N flying squirrel dropping vertically at terminal velocity is	0.8 N	physics	test
Evaluate −2(x − 3) for x = 2.	2	math	test
This question refers to the following information. "The substitution of Plato for the scholastic Aristotle was hastened by contact with Byzantine scholarship. Already at the Council of Ferrera (1438), which nominally reunited the Eastern and Western churches, there was a debate in which the Byzantines maintained the superiority of Plato to Aristotle. Cosimo and Lorenzo de Medici were both addicted to Plato; Cosimo founded and Lorenzo continued the Florentine Academy, which was largely devoted to the study of Plato&…The humanists of the time, however, were too busy acquiring knowledge of antiquity to be able to produce anything of value." Bertrand Russell, British philosopher, History of Western Philosophy, 1946 The cultural diffusion described by Bertrand Russell most directly influenced the composition of which text?	Oration on the Dignity of Man	history	test
A 200-kva, [(13,200) / (2,200)]-volt, 60-cps, single-phase transformer has the following test data: Volts Amp Watts Frequency Volts Open circuit 2,200 3.1 1550 60 cps 12,800 Short circuit 210 90.9 2500 60 cps Determine the parameters of the T-equivalent circuit when referred to the low voltage winding.	Turns ratio = 5.82, R = 3120.0 ohms, Y_oc = 1.41 × 10^-3 mho, \|b_mag\| = 1.374 × 10^-3 mho, \|X_mag\| = 727.0 ohms, r_1' + r_2 = 0.303 ohm, \|X_sc\| = 2.28 ohm.	engineering	test
Which of the following criticisms of standard ("plain vanilla") GARCH models can be overcome by EGARCH models? i) Estimated coefficient values from GARCH models may be negative ii) GARCH models cannot account for leverage effects iii) The responsiveness of future volatility to positive and negative shocks is symmetric under a GARCH formulation iv) GARCH models cannot allow for a feedback from the volatility to the returns	(i), (ii), and (iii) only	economics	test
Air is flowing through a nozzle with a 90% efficiency and an expansion rate of 2.0 Kg/s. The inlet conditions are P = 550kPa and T = 680°K. If the exit pressure is 120kPa calculate the actual exit area, velocity and enthalpy. Assume K = 1.4.	Exit area = 3.37 × 10^-3m^2, Velocity = 658 m/s, Enthalpy = 465.8 KJ/kg	engineering	test
A student drops a water-filled balloon from the roof of the tallest building in town trying to hit her roommate on the ground (who is too quick). The first student ducks back but hears the water splash $4.021 \mathrm{~s}$ after dropping the balloon. If the speed of sound is $331 \mathrm{~m} / \mathrm{s}$, find the height of the building, neglecting air resistance.	71$\mathrm{~m}$	physics	test
How are nutrients and waste materials transported from the circulatory system to the body's tissues?	Nutrients and waste materials are transported from the circulatory system to the body's tissues through the capillaries, where exchange of materials occurs due to diffusion. The capillaries' thin wall and extensive branching allows this process.	biology	test
How many cups of coffee were consumed in the United States in the past week (as of 2013)?	3 billion cups per week	other	test
Armco Truck Rental Co. charges $32 per day, $.22 per mile, and $.55 per gallon of gasoline for renting its trucks. Additional hours a day are charged at $2.75 per hour. Mr. Williams rented a truck for 2 days and 3 hours. He drove it 320 miles, and used 30 gallons of gasoline. What was the total cost?	$159.15	business	test
The rating of a certain machine from the name-plate is 110 volts, 38.5 amperes, 5h.p. Find the input, output and efficiency at full load.	Input: 4350 watts, Output: 3730 watts, Efficiency: 85.7 percent	engineering	test
Assuming the Bohr radius is 0.5292 × 10^-8 cm, what frequency of a light wave has the same wavelength as the Bohr radius?	5.665 × 10^18 sec^-1	chemistry	test
Predict the number of lines in the EPR spectrum of a solution of 13C-labelled methyl radical (13CH3•), assuming the lines do not overlap.	8	chemistry	validation
From the specific rotation of quartz for \lambda = 508.582 nm, \beta = 29.728 Deg/mm , compute the difference in refractive index (n_L-n_R), setting the thickness of the quartz plate = 1 mm.	8.4 × 10^-5	physics	test
For the following second-order reversible reaction H_2 + X_2 ^(k)a\rightleftarrows_(k)b 2HX express the thermodynamic equilibrium constant, K, in terms of k_a and k_b.	(k_a / k_b) = K	chemistry	test
Using the schedule of rates from the previous problem, find thecost of 6 one half page advertisements.	$3,000	business	test
Which of the following factors does NOT play a role in gender relationships in a culture or society?	Biology	other	test
If the half-life of a radioactive substance is 8 years, how long will it take, in years, for two thirds of the substance to decay?	12.68	math	test
We know that radiation and chemicals can cause cancer. Can viruses be a cause of cancer?	Yes, viruses can be a cause of cancer	biology	test
A purchaser orally agreed with the seller to buy seller's house for $100,000. The purchaser gave the seller a written offer and a post-dated check for 5% of the price. Before the seller signed the offer form or deposited the check, he received an offer of his full asking price of $120,000 from another party. The seller called the purchaser and called the deal off. The purchaser sued for specific performance on the basis that the oral understanding, along with the written offer and the check, constituted an enforceable agreement. Will the purchaser likely prevail?	No, because the offer was not accepted prior to an acceptance the seller had the right to sell to anyone.	law	test
Briefly describe the six major categories of abnormal behavior as given in the 1968 Diagnostic and Statistical Manual (DSM-II) of the American Psychiatric Association.	The six major categories of abnormal behavior in DSM-II are mental retardation, organic brain syndromes, psychoses not attributed to physical conditions, neuroses, personality disorders and other nonpsychotic mental disorders, and psychophysiological disorders.	psychology	test
Replacing supply chains with _______ enhances the importance of product _______as well as a fundamental redesign of every activity a firm engages in that produces _______.	Supply loops, Recapture, Waste	business	test
Findcurlaat the point (1, - 2, 1) fora= x^2y^2i+ 2xyzj+ z^2k(1)	(4, 0, 0)	engineering	test
MRI is preferred over CT (computed tomography) in all of the following scenarios, EXCEPT:	The detection of a skull fracture	psychology	test
The Amalgamated Loan Company received a 6-months note for $1,500, bearing 6% interest and dated May 17, 1976. On September 22, 1976, the note was discounted at 8%. What were the proceeds?	$1,525.77	business	test
Which of the following is true in a sensory assessment of the arm?	Proprioception is appreciated via the same tracts as light touch	health	test
One mole of $\mathrm{H}_2 \mathrm{O}(l)$ is compressed from a state described by $P=1.00$ bar and $T=350$. K to a state described by $P=590$. bar and $T=750$. K. In addition, $\beta=2.07 \times 10^{-4} \mathrm{~K}^{-1}$ and the density can be assumed to be constant at the value $997 \mathrm{~kg} \mathrm{~m}^{-3}$. Calculate $\Delta S$ for this transformation, assuming that $\kappa=0$.	57.2 $\mathrm{~K}^{-1}$	physics	test
A mechanical device moves a charge of 1.5 coulombs for a distance of 20 cm through a uniform electric field of 2 × 10^3 newtons/coulomb. What is theemfof the device?	400 volts	physics	test
An integer c is a common divisor of two integers x and y if and only if c is a divisor of x and c is a divisor of y. Which of the following sets of integers could possibly be the set of all common divisors of two integers?	{-6, -3, -2, -1, 1, 2, 3, 6}	computer science	test
Antivirals can be used prophylactically or therapeutically in persons in which of the following circumstances?	Used for the obese	health	test
Suppose $x-3$ and $y+3$ are multiples of $7$. What is the smallest positive integer, $n,$ for which $x^2+xy+y^2+n$ is a multiple of $7$?	5	math	test
What is the potential impact on the money supply of an open market sale by the FED of $3,000,000 in government bonds, assuming all commercial banks are fully "loaned up" (i.e., their excess reserves are zero), and the re-quired reserve ratio is 25%?	$12,000,000 reduction	economics	test
Which of the following is NOT among the top 10 causes of death in the U. S.?	AIDS	health	test
(1) Cu(NH_3)^2_4^+ \rightleftarrows Cu^2+ + 4NH_3k = 1.0 × 10^-12 (2) Co(NH_3)^2_6^+ \rightleftarrows Co^2+ + 6NH_3k = 4.0 × 10^-5 (3) Co(NH_3)^3_6^+ \rightleftarrows Co^3+ + 6NH_3k = 6.3 × 10^-36 (4) Ag(NH_3)^+_2 \rightleftarrows Ag^+ + 2NH_3k = 6.0 × 10^-8. Arrange them in order of increasing NH_3 concentration that would be in equilibrium with complex ion, if you start with 1 M of each.	Co^3+, Ag^+, Cu^2+, Co^2+	chemistry	test
A buffer is made from equal concentrations of a weak acid and its conjugate base. Doubling the volume of the buffer solution by adding water has what effect on its pH?	It has little effect.	chemistry	test
A reacts with B in a one-step reaction to give C. The rate constant for the reaction is 2.0 × 10^-3 M^-1 sec^-1. If 0.50 mole of A and 0.30 mole of B are placed in a 0.50 liter-box, what is the initial rate of the reaction?	1.20× 10^-3 M/sec	chemistry	test
Dissolving one mole of each of the following compounds in water results in solutions with different pH values. Under those conditions, which of the following acids will have the highest percentage ionization?	HClO4	chemistry	test
What makes a piece of material to be learnedmeaningful, andhow does its meaningfulness affect the rate of learning?	The more meaningful something is, the easier it is to learn and retain it. Meaningfulness is measured by the number of associations they evoked.	psychology	test
Note that statistical tables are not necessary to answer this question. For a sample of 1000 observations, the Dickey-Fuller test statistic values are	More negative than (i.e. bigger in absolute value than) those in the left hand tail of a normal distribution	economics	test
The ѵ -irelation of a nonlinear resistor is given by ѵ (t) = (1/2)i^2 (t) Is this resistor voltage-controlled? Current-controlled?	The resistor is current controlled	engineering	test
What is psychodrama and what is itsrationale ?	Psychodrama is a form of group therapy in which participants act out their feelings as if they were actors in a play. It is used to stimulate participants to bring forth their feelings and thoughts in a structured form.	psychology	test
An atom emits a photon of green light \lambda = 5200 \AA in \tau = 2 × 10^-10 sec, Estimate the spread of wavelengths in the photon.	7.17 × 10^-13 m	physics	test
Of the following potential benefits, which is LEAST likely to be provided by the upgraded system?	The company will be able to provide a human representative for any incoming call.	computer science	test
Alex needs to borrow $\$10,\!000$ from the bank. The bank gives him two options. 1. A ten-year loan with an annual interest rate of $10\%$ compounded quarterly, with the condition that at the end of 5 years, Alex must make a payment equal to half of what he owes. The other half continues to accrue interest, and at the end of the ten years, Alex will pay off the remaining balance. 2. A ten-year loan with a simple annual interest rate of $12\%$, with just one lump-sum payment at the end of the ten years. Find the positive difference between the total amounts Alex has to pay back under the two schemes. Round your answer to the nearest dollar.	382	math	test
Which of the following is a renewable energy source?	Wood	other	test
A vertical wall 2.0 ft. (0.610 m) high has a surface temperatureof 500°F(523.3 K). It is in contact with air at 120°F(322.2 K). Determine the heat transfer/ft width of wall. Neglect heat transfer due to radiation. Work the problem in English and SI units.	403 (Btu/hr), 119 W	engineering	test
An atom has filled n = 1 and n = 2 levels. How many electrons does the atom have?	10	physics	test
Descartes believed that interaction between body and mind took place in _____.	the pineal gland	philosophy	test

Under what conditions is the net electric flux through a closed surface proportional to the enclosed charge?

under any conditions

physics

test

Mr. Glass borrowed $250 from the ABC Finance Company. He agreed to repay the $250 in five monthly installments, with interest at 3% a month on the first $150 and 2% a month on any part of the loan over $150. What was his total interest cost?

$21

business

test

Samantha has 342 baseball cards. Perry has 184 baseball cards. How many more baseball cards does Samantha have than Perry?

158

math

test

Given that Bismuth has a density of 9.80 × 10^3 kg m^-3 and a mass absorption coefficient for a gamma radiation corresponding to a half thickness of 12g cm^-2. What is the percent decrease in intensity at a depth of 1.5 cm?

57.15%

chemistry

test

Statement 1 | A factor group of a non-Abelian group is non-Abelian. Statement 2 | If K is a normal subgroup of H and H is a normal subgroup of G, then K is a normal subgroup of G.

False, False

math

test

According to the Gestalt organizing principles of perception, when you look at, "i n car n a t e," you tend to notice the word car rather than in, nate, at, or ate, because of

proximity

psychology

test

Where did the world's first civilization develop?

Mesopotamia

history

test

Consider a screw used in translation along with a 22 mm. insidediameter and 38 mm. outside diameter collar. The screwhas a mean; diameter of 18 mm. and has a single trapezoidalmetric thread cut with a pitch of 4 mm. Determine thetorque required to raise a load of 500 kg, if both the collarand the threads have a coefficient of friction of 0.3.

39.82 N-m

engineering

test

A car battery supplies a currentI of 50 amp to the starter motor. How much charge passes through the starter in (1/2) min?

1500 coul

physics

test

Calculate the pH of a solution whose hydrogen ion concentration is 2.7 × 10^-6 M.

5.57

chemistry

test

A landlord leased a commercial building to a tenant for five years. Rent was payable on the first day of each month, and the landlord retained the right to terminate the lease if the tenant defaulted. The lease term ended 18 months ago. However, the tenant has stayed in possession of the building and has continued to pay the rent on time. The landlord has continued to accept the rent. The fair rental value of the building is now substantially more than what the tenant has been paying, and the landlord recently found a third party who will pay the higher rent. When the tenant paid the rent six weeks ago, the landlord accepted paid the rent six weeks ago, the landlord accepted the rent but told the tenant in writing that she had to vacate at the end of the month. The tenant, who is still in possession of the building, has informed the landlord that she does not want to move and is willing to pay the current fair rental value. The landlord has asked his lawyer for advice regarding the right to possession. Who should the lawyer say is entitled to possession?

The landlord, because he gave proper notice to terminate the tenancy.

law

test

A surgical support can be used for:

herniation around the stoma.

health

test

An accounting professor has been called as a defense expert witness in a white-collar criminal case. He testified that accounting records conclusively demonstrated that the defendant had not committed any type of fraud. On cross-examination of the professor, the prosecuting attorney asked him if he was familiar with a particular treatise. The professor responded affirmatively. The attorney then asked him if the treatise was accepted as authoritative and if he was aware of the conclusions regarding the ability of accountants to detect fraud. The professor responded in the affirmative. The prosecutor now attempts to read the following section of the treatise into evidence: "It is virtually impossible to state with conclusive certainty the existence, or lack thereof, of fraud in the majority of white-collar crime cases, given the sophistication of defendants and the variety of accounting methods available. "On objection by the defendant's attorney, the trial judge will

overrule the objection and permit only the contradictory statements to be read into evidence.

law

test

Congress has embarked on another round of expansionary fiscal policy to boost employment and get reelected. As chair of the central bank how would you reduce the "crowding-out" effect and what macroeconomic problem might your policy exacerbate?

Lower the discount rate risking inflation

economics

test

Research on Helms’s White Racial Identity Development Model suggests that a White therapist will usually be most successful when working with a client from an ethnic/racial minority group when the therapist is in which stage?

autonomy

psychology

test

At approximately what temperature will water boil ifthe elevationis 10,000 ft?

193°F

engineering

test

Cell motility, as viewed in a cultured fibroblast, encompasses all of the following EXCEPT

clathrin

biology

test

A company invested in a new machine that will generate revenues of $35,000 annually for seven years. The company will have annual operating expenses of $7,000 on the new machine. Depreciation expense, included in the operating expenses, is $4,000 per year. The expected payback period for the new machine is 5.2 years. What amount did the company pay for the new machine?

$166,400

other

test

You are given that the ionization energy of a hydrogen atom is 13.527eV, calculate the second ionization energy of a helium atom. The general equation for the lines in the emis-sion spectra of one electron system such as H, He^+ , Li^2+ and Be^3+ is given as ѵ= Z^2 R_H{(1/n^2_1) - (1/n^2_2)} whereѵ= the wave numbers of emission lines and Z is the nuclear charge of the atom concerned.

54.108eV

chemistry

test

Two trains moving along parallel tracks in opposite directions converge on a stationary observer, each sounding its whistle of frequency 350 cycles. s^-1. One train is traveling at 50 mph. What must be the speed of the other if the observer hears 5 beats per second. The speed of sound in air is 750 mph.

40.5 mph or 59.2 mph

physics

test

A ladder 9 meters in length is leaning against a vertical wall on level ground. As the bottom end of the ladder is moved away from the wall at a constant rate of 2 meters per second, the top end slides downward along the wall. How fast, in meters per second, will the top end of the ladder be sliding downward at the moment the top end is 3 meters above the ground?

4*sqrt(2)

math

test

A flat piece of plastic, area A = 1 ft^2 and thickness b = 0.252 inch, was tested and found to conduct heat at a rate of 3.0 watts in steady state with temperatures of T_0 = 24°C and T_1 = 26°C on the two main sides of the panel. Find the thermal conductivity of the plastic in cal sec^-1cm^-1 (°K)^-1 at 25°C.

2.47 × 10^-4 cal sec^-1 cm^-1 (°K)^-1

engineering

test

What is the value of p in 24 = 2p?

p = 12

math

test

In the event of bankruptcy, what is the order of payment of bonds, common stock, and preferred stock?

Bondholders, preferred stockholders, common stockholders

business

test

This question refers to the following information. "We found that not only was it a civil war, an effort by a people who had for years been seeking their liberation from any colonial influence whatsoever, but also we found that the Vietnamese whom we had enthusiastically molded after our own image were hard put to take up the fight against the threat we were supposedly saving them from. "We found most people didn't even know the difference between communism and democracy. They only wanted to work in rice paddies without helicopters strafing them and bombs with napalm burning their villages and tearing their country apart. They wanted everything to do with the war, particularly with this foreign presence of the United States of America, to leave them alone in peace, and they practiced the art of survival by siding with whichever military force was present at a particular time, be it Viet Cong, North Vietnamese or American." John Kerry, 1971 The two political issues that most concerned the Counterculture Movement of the 1960s were

U.S. involvement in Vietnam and the civil rights movement

history

test

Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K. The volume of a certain liquid varies with temperature as $$ V=V^{\prime}\left\{0.75+3.9 \times 10^{-4}(T / \mathrm{K})+1.48 \times 10^{-6}(T / \mathrm{K})^2\right\} $$ where $V^{\prime}$ is its volume at $300 \mathrm{~K}$. Calculate its expansion coefficient, $\alpha$, at $320 \mathrm{~K}$.

$1.31 \times 10^{-3}$$\mathrm{~K}^{-1}$

chemistry

test

Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K. For a van der Waals gas, $\pi_T=a / V_{\mathrm{m}}^2$. Calculate $\Delta U_{\mathrm{m}}$ for the isothermal expansion of nitrogen gas from an initial volume of $1.00 \mathrm{dm}^3$ to $24.8 \mathrm{dm}^3$ at $298 \mathrm{~K}$.

131$\mathrm{J} \mathrm{mol}^{-1}$

chemistry

test

Differentiate tariffs from quotas as barriers to free trade.

Tariffs are taxes on imported goods to raise revenue and protect domestic industries, while quotas set a maximum on the quantity of a good that may be imported during a given time period.

economics

test

Select the best translation into predicate logic: Not all lobsters are red.

~(∀x)(Lx ⊃ Rx)

philosophy

test

'Scientific' theories in the nineteenth century tried to explain race in naturalistic terms. Which of the following ideas was not considered?

height

other

test

A helium-neon laser (used in supermarket scanners) emits light at $632.8 \mathrm{~nm}$. Calculate the frequency of this light.

4.738$10^{14} \mathrm{~Hz}$

chemistry

test

A multiple disc clutch is used to operate the speed regulating gears of a lathe. If the torque delivered by the clutch is 400 lbs.-in., evaluate the number of discs necessary and the force acting on them while the clutch is in operation. Assume a factor of safety of 2 and limit the disc friction surface sizes between 5 in. and 3 in.

Three discs, Force on the discs = 1028 lbs.

engineering

test

What is wrong with the following statement? "In many desert plants the roots grow very deep because they are searching out for deep underground water to supply the plant." Explain your answer.

The statement is oversimplified and teleological, implying goal-directed behavior in plants which is not possible. The True reason for desert plants having long roots is natural selection.

biology

test

10 cc of battery acid (density 1.21) is diluted to 100 cc. 30 cc of the dilute solution is neutralized by 45 cc of 0.5 N base. What is the normality of the diluted acid? What is its strength in grams per liter? What is the strength of the undiluted 1.21 density acid in g/l?

0.75 N, 121 g/l, 1210 g/l

chemistry

test

In an SR latch built from NOR gates, which condition is not allowed

S=1, R=1

engineering

validation

Abraham Maslow proposed the idea that some motives are more imperative to survival than others. Which of the following approaches expresses this?

Hierarchy of needs

psychology

test

Economy X is an open economy with flexible exchange rates. Economy Y is closed. Ceteris paribus expansionary monetary policy is

less effective in X because the policy will decrease net exports.

economics

test

Find the Laplace transform of f(t) = cos kt, for t > 0, where k is a real constant.

s / (s^2 + k^2), for s > 0

engineering

test

A chemist wants the percent dissociation of HC_2H_3O_2 to be 1 %. If theK_dissof HC_2H_3O_2 is 1.8 × 10^-5, what con-centration of HC_2H_3O_2 is required?

1.76 × 10^-1 M

chemistry

test

A defendant was indicted and arrested for bank robbery. The defendant had an initial appearance before a magistrate judge in which he was notified of the charges and told that counsel would be appointed for him the next day. The police then required the defendant to participate with other prisoners in a lineup in which each person had to wear a white T-shirt and say, "Put your hands in the air." At the lineup, witnesses to the bank robbery identified the defendant as the bank robber. The next day, the defendant was arraigned on the charges. The defendant argues that his Sixth Amendment right to counsel was violated when he was denied counsel at two critical stages of the proceeding: his initial appearance in court before the magistrate initial appearance in court before the magistrate judge and the lineup identification. Was the defendant's Sixth Amendment right to counsel violated?

Yes, based only on the denial of counsel at the lineup.

law

test

Given the below information, what is the return on invested capital (to the nearest tenth of 1%) ? Net investments (December 31, 1966) $250,000 Net investments (December 31, 1967) $350,000 Net sales year ended December 31, 1967 $600,000 Net income year ended December 31, 1967 $ 25,000

8.3%

business

test

During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which statement is most likely to be helpful in correcting this student's misconception?

Characteristics acquired during an organism's life are generally not passed on through genes.

biology

test

At time 0, five jobs are available for execution on a single processor, with service times of 25, 15, 5, 3, and 2 time units. Which of the following is the minimum value of the average completion time of these jobs?

92/5

computer science

test

In conducting international market research, there are three types of equivalence. Which of the following is NOT one of the equivalences?

Market equivalence.

business

test

One morning, an employee arrived at work and found his boss passed out on the floor of his office. The employee determined that his boss was not breathing, immediately rendered CPR to his boss, and succeeded in reviving him. The employee then called the paramedics, who took the boss to the hospital. Two week later, the boss returned to work. Grateful for the employee's quick action in saving his life, the boss said to the employee, "You'll have ajob with me for life. "Which of the following best characterizes the legal relationship between the boss and the employee on that date?

Since the employee gratuitously rendered assistance to the boss, there was insufficient consideration to support the boss's subsequent promise to provide the employee with lifetime employment.

law

test

A canning company bought a $15,000 piece of machinery for its vegetable farm. The machinery is expected to last six years at which time it will have no residual value. The company wishes to use the maximum percentage allowable under the declining-balance method for computing the depreciation. Find the depreciation and book value for the first three years of operation.

Year 1: $5,000, Year 2: $3,333, Year 3: $2,222

business

test

Languages with a structure that implements abstract data types (e.g., a C++ class) can prevent access to components of this structure by all operations except those that are part of this structure. However, definitions of such a structure often contain declarations of components of the structure (e.g., the header file for a C++ class may contain declarations of its private components). For such a language, an object's name could be bound at run time to stack storage for its component values (direct representation) or to a stack pointer referencing heap storage for its component values (indirect representation). Which of the following statements about comparisons between direct and indirect representations is (are) true? I. Indirect representation noticeably increases compilation time. II. Direct representation decreases the time needed to access components of a variable. III. When the storage size of some private component of a variable changes, indirect representation minimizes the number of recompilations of source modules that must be performed.

II and III only

computer science

test

Which of the following methods of detecting breast cancer involves exposure to radiation?

Mammography

other

test

This question refers to the following information. "We found that not only was it a civil war, an effort by a people who had for years been seeking their liberation from any colonial influence whatsoever, but also we found that the Vietnamese whom we had enthusiastically molded after our own image were hard put to take up the fight against the threat we were supposedly saving them from. "We found most people didn't even know the difference between communism and democracy. They only wanted to work in rice paddies without helicopters strafing them and bombs with napalm burning their villages and tearing their country apart. They wanted everything to do with the war, particularly with this foreign presence of the United States of America, to leave them alone in peace, and they practiced the art of survival by siding with whichever military force was present at a particular time, be it Viet Cong, North Vietnamese or American." John Kerry, 1971 The conflict described above is most likely a result of which of the following doctrines?

Containment

history

test

Statement 1| Highway networks were introduced after ResNets and eschew max pooling in favor of convolutions. Statement 2| DenseNets usually cost more memory than ResNets.

False, True

computer science

test

Indicate the equilibrium equation and constant expression for theautoprotolysisof liquid ammonia. If KNH_3 = 10^-22 , how many molecules of ammonia are ionized in 1 mole of ammonia? Assume a density of 0.771g/ml for ammonia.

2.66 × 10^11 molecules

chemistry

test

If 2.02 g of hydrogen gas occupies 22.4 liters, calculate the density of hydrogen gas in grams per milliliter.

9.0 × 10 ^-5 g/ml

chemistry

test

The amount of air drag on an 0.8-N flying squirrel dropping vertically at terminal velocity is

0.8 N

physics

test

Evaluate −2(x − 3) for x = 2.

2

math

test

This question refers to the following information. "The substitution of Plato for the scholastic Aristotle was hastened by contact with Byzantine scholarship. Already at the Council of Ferrera (1438), which nominally reunited the Eastern and Western churches, there was a debate in which the Byzantines maintained the superiority of Plato to Aristotle. Cosimo and Lorenzo de Medici were both addicted to Plato; Cosimo founded and Lorenzo continued the Florentine Academy, which was largely devoted to the study of Plato&…The humanists of the time, however, were too busy acquiring knowledge of antiquity to be able to produce anything of value." Bertrand Russell, British philosopher, History of Western Philosophy, 1946 The cultural diffusion described by Bertrand Russell most directly influenced the composition of which text?

Oration on the Dignity of Man

history

test

A 200-kva, [(13,200) / (2,200)]-volt, 60-cps, single-phase transformer has the following test data: Volts Amp Watts Frequency Volts Open circuit 2,200 3.1 1550 60 cps 12,800 Short circuit 210 90.9 2500 60 cps Determine the parameters of the T-equivalent circuit when referred to the low voltage winding.

Turns ratio = 5.82, R = 3120.0 ohms, Y_oc = 1.41 × 10^-3 mho, |b_mag| = 1.374 × 10^-3 mho, |X_mag| = 727.0 ohms, r_1' + r_2 = 0.303 ohm, |X_sc| = 2.28 ohm.

engineering

test

Which of the following criticisms of standard ("plain vanilla") GARCH models can be overcome by EGARCH models? i) Estimated coefficient values from GARCH models may be negative ii) GARCH models cannot account for leverage effects iii) The responsiveness of future volatility to positive and negative shocks is symmetric under a GARCH formulation iv) GARCH models cannot allow for a feedback from the volatility to the returns

(i), (ii), and (iii) only

economics

test

Air is flowing through a nozzle with a 90% efficiency and an expansion rate of 2.0 Kg/s. The inlet conditions are P = 550kPa and T = 680°K. If the exit pressure is 120kPa calculate the actual exit area, velocity and enthalpy. Assume K = 1.4.

Exit area = 3.37 × 10^-3m^2, Velocity = 658 m/s, Enthalpy = 465.8 KJ/kg

engineering

test

A student drops a water-filled balloon from the roof of the tallest building in town trying to hit her roommate on the ground (who is too quick). The first student ducks back but hears the water splash $4.021 \mathrm{~s}$ after dropping the balloon. If the speed of sound is $331 \mathrm{~m} / \mathrm{s}$, find the height of the building, neglecting air resistance.

71$\mathrm{~m}$

physics

test

How are nutrients and waste materials transported from the circulatory system to the body's tissues?

Nutrients and waste materials are transported from the circulatory system to the body's tissues through the capillaries, where exchange of materials occurs due to diffusion. The capillaries' thin wall and extensive branching allows this process.

biology

test

How many cups of coffee were consumed in the United States in the past week (as of 2013)?

3 billion cups per week

other

test

Armco Truck Rental Co. charges $32 per day, $.22 per mile, and $.55 per gallon of gasoline for renting its trucks. Additional hours a day are charged at $2.75 per hour. Mr. Williams rented a truck for 2 days and 3 hours. He drove it 320 miles, and used 30 gallons of gasoline. What was the total cost?

$159.15

business

test

The rating of a certain machine from the name-plate is 110 volts, 38.5 amperes, 5h.p. Find the input, output and efficiency at full load.

Input: 4350 watts, Output: 3730 watts, Efficiency: 85.7 percent

engineering

test

Assuming the Bohr radius is 0.5292 × 10^-8 cm, what frequency of a light wave has the same wavelength as the Bohr radius?

5.665 × 10^18 sec^-1

chemistry

test

Predict the number of lines in the EPR spectrum of a solution of 13C-labelled methyl radical (13CH3•), assuming the lines do not overlap.

8

chemistry

validation

From the specific rotation of quartz for \lambda = 508.582 nm, \beta = 29.728 Deg/mm , compute the difference in refractive index (n_L-n_R), setting the thickness of the quartz plate = 1 mm.

8.4 × 10^-5

physics

test

For the following second-order reversible reaction H_2 + X_2 ^(k)a\rightleftarrows_(k)b 2HX express the thermodynamic equilibrium constant, K, in terms of k_a and k_b.

(k_a / k_b) = K

chemistry

test

Using the schedule of rates from the previous problem, find thecost of 6 one half page advertisements.

$3,000

business

test

Which of the following factors does NOT play a role in gender relationships in a culture or society?

Biology

other

test

If the half-life of a radioactive substance is 8 years, how long will it take, in years, for two thirds of the substance to decay?

12.68

math

test

We know that radiation and chemicals can cause cancer. Can viruses be a cause of cancer?

Yes, viruses can be a cause of cancer

biology

test

A purchaser orally agreed with the seller to buy seller's house for $100,000. The purchaser gave the seller a written offer and a post-dated check for 5% of the price. Before the seller signed the offer form or deposited the check, he received an offer of his full asking price of $120,000 from another party. The seller called the purchaser and called the deal off. The purchaser sued for specific performance on the basis that the oral understanding, along with the written offer and the check, constituted an enforceable agreement. Will the purchaser likely prevail?

No, because the offer was not accepted prior to an acceptance the seller had the right to sell to anyone.

law

test

Briefly describe the six major categories of abnormal behavior as given in the 1968 Diagnostic and Statistical Manual (DSM-II) of the American Psychiatric Association.

The six major categories of abnormal behavior in DSM-II are mental retardation, organic brain syndromes, psychoses not attributed to physical conditions, neuroses, personality disorders and other nonpsychotic mental disorders, and psychophysiological disorders.

psychology

test

Replacing supply chains with _______ enhances the importance of product _______as well as a fundamental redesign of every activity a firm engages in that produces _______.

Supply loops, Recapture, Waste

business

test

Findcurlaat the point (1, - 2, 1) fora= x^2y^2i+ 2xyzj+ z^2k(1)

(4, 0, 0)

engineering

test

MRI is preferred over CT (computed tomography) in all of the following scenarios, EXCEPT:

The detection of a skull fracture

psychology

test

The Amalgamated Loan Company received a 6-months note for $1,500, bearing 6% interest and dated May 17, 1976. On September 22, 1976, the note was discounted at 8%. What were the proceeds?

$1,525.77

business

test

Which of the following is true in a sensory assessment of the arm?

Proprioception is appreciated via the same tracts as light touch

health

test

One mole of $\mathrm{H}_2 \mathrm{O}(l)$ is compressed from a state described by $P=1.00$ bar and $T=350$. K to a state described by $P=590$. bar and $T=750$. K. In addition, $\beta=2.07 \times 10^{-4} \mathrm{~K}^{-1}$ and the density can be assumed to be constant at the value $997 \mathrm{~kg} \mathrm{~m}^{-3}$. Calculate $\Delta S$ for this transformation, assuming that $\kappa=0$.

57.2 $\mathrm{~K}^{-1}$

physics

test

A mechanical device moves a charge of 1.5 coulombs for a distance of 20 cm through a uniform electric field of 2 × 10^3 newtons/coulomb. What is theemfof the device?

400 volts

physics

test

An integer c is a common divisor of two integers x and y if and only if c is a divisor of x and c is a divisor of y. Which of the following sets of integers could possibly be the set of all common divisors of two integers?

{-6, -3, -2, -1, 1, 2, 3, 6}

computer science

test

Antivirals can be used prophylactically or therapeutically in persons in which of the following circumstances?

Used for the obese

health

test

Suppose $x-3$ and $y+3$ are multiples of $7$. What is the smallest positive integer, $n,$ for which $x^2+xy+y^2+n$ is a multiple of $7$?

5

math

test

What is the potential impact on the money supply of an open market sale by the FED of $3,000,000 in government bonds, assuming all commercial banks are fully "loaned up" (i.e., their excess reserves are zero), and the re-quired reserve ratio is 25%?

$12,000,000 reduction

economics

test

Which of the following is NOT among the top 10 causes of death in the U. S.?

AIDS

health

test

(1) Cu(NH_3)^2_4^+ \rightleftarrows Cu^2+ + 4NH_3k = 1.0 × 10^-12 (2) Co(NH_3)^2_6^+ \rightleftarrows Co^2+ + 6NH_3k = 4.0 × 10^-5 (3) Co(NH_3)^3_6^+ \rightleftarrows Co^3+ + 6NH_3k = 6.3 × 10^-36 (4) Ag(NH_3)^+_2 \rightleftarrows Ag^+ + 2NH_3k = 6.0 × 10^-8. Arrange them in order of increasing NH_3 concentration that would be in equilibrium with complex ion, if you start with 1 M of each.

Co^3+, Ag^+, Cu^2+, Co^2+

chemistry

test

A buffer is made from equal concentrations of a weak acid and its conjugate base. Doubling the volume of the buffer solution by adding water has what effect on its pH?

It has little effect.

chemistry

test

A reacts with B in a one-step reaction to give C. The rate constant for the reaction is 2.0 × 10^-3 M^-1 sec^-1. If 0.50 mole of A and 0.30 mole of B are placed in a 0.50 liter-box, what is the initial rate of the reaction?

1.20× 10^-3 M/sec

chemistry

test

Dissolving one mole of each of the following compounds in water results in solutions with different pH values. Under those conditions, which of the following acids will have the highest percentage ionization?

HClO4

chemistry

test

What makes a piece of material to be learnedmeaningful, andhow does its meaningfulness affect the rate of learning?

The more meaningful something is, the easier it is to learn and retain it. Meaningfulness is measured by the number of associations they evoked.

psychology

test

Note that statistical tables are not necessary to answer this question. For a sample of 1000 observations, the Dickey-Fuller test statistic values are

More negative than (i.e. bigger in absolute value than) those in the left hand tail of a normal distribution

economics

test

The ѵ -irelation of a nonlinear resistor is given by ѵ (t) = (1/2)i^2 (t) Is this resistor voltage-controlled? Current-controlled?

The resistor is current controlled

engineering

test

What is psychodrama and what is itsrationale ?

Psychodrama is a form of group therapy in which participants act out their feelings as if they were actors in a play. It is used to stimulate participants to bring forth their feelings and thoughts in a structured form.

psychology

test

An atom emits a photon of green light \lambda = 5200 \AA in \tau = 2 × 10^-10 sec, Estimate the spread of wavelengths in the photon.

7.17 × 10^-13 m

physics

test

Of the following potential benefits, which is LEAST likely to be provided by the upgraded system?

The company will be able to provide a human representative for any incoming call.

computer science

test

Alex needs to borrow $\$10,\!000$ from the bank. The bank gives him two options. 1. A ten-year loan with an annual interest rate of $10\%$ compounded quarterly, with the condition that at the end of 5 years, Alex must make a payment equal to half of what he owes. The other half continues to accrue interest, and at the end of the ten years, Alex will pay off the remaining balance. 2. A ten-year loan with a simple annual interest rate of $12\%$, with just one lump-sum payment at the end of the ten years. Find the positive difference between the total amounts Alex has to pay back under the two schemes. Round your answer to the nearest dollar.

382

math

test

Which of the following is a renewable energy source?

Wood

other

test

A vertical wall 2.0 ft. (0.610 m) high has a surface temperatureof 500°F(523.3 K). It is in contact with air at 120°F(322.2 K). Determine the heat transfer/ft width of wall. Neglect heat transfer due to radiation. Work the problem in English and SI units.

403 (Btu/hr), 119 W

engineering

test

An atom has filled n = 1 and n = 2 levels. How many electrons does the atom have?

10

physics

test

Descartes believed that interaction between body and mind took place in _____.

the pineal gland

philosophy

test