Which of the following statements is (are) true?
A) The marginal rate of substitution is always negative.
B) When total utility reaches a maximum, marginal utility is zero.
C) Indifference curves never intersect.
D) All of the above.
D) All of the above.
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The Cuban missile crisis resulted in all of the following EXCEPT
A. U.S. agreement to abandon the American base at Guantanamo. B. the removal of Nikita Khrushchev from power in the Soviet Union. C. a U.S. promise not to invade Cuba. D. an ambitious program of military expansion by the Soviet Union. E. withdrawal of U.S. missiles in Turkey.
What type of seal system is designed to restrict flow by requiring the fluid to pass through a series of ridges and intricate paths?
a. Lubrication b. Labyrinth seal c. Liquid buffered seal d. Dry carbon rings
Discuss some of the trade-off s in using renewable and nonrenewable energy sources to provide heating for your home.
What will be an ideal response?
When the motor is initially started in the following figure, the winding in the inside branch of the parallel circuit is __________.
A. functional B. eliminated