A Carnot engine operates between a high temperature reservoir at and a river with water at If it absorbs of heat each cycle, how much work per cycle does it perform?
A) 1318 J
B) 2382 J
C) 1449 J
D) 2251 J
Answer: A
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Coherent light of a single frequency passes through a double slit with a separation d, to produce a pattern on a screen as distance D from the slits. What would cause the separation between adjacent minima on the screen to increase?
A. increase the index of refraction of the medium in which the setup is immersed B. increase the separation d between the slits C. increase the distance D D. increase the frequency of the incident light
Lenz's Law: The wire in the figure carries a current I that is increasing with time at a constant rate. The wire and the three loops are all in the same plane. What is true about the currents induced in each of the three loops shown?
A. No current is induced in any loop. B. The currents are counterclockwise in all three loops. C. The currents are clockwise in all three loops. D. Loop A has clockwise current, loop B has no induced current, and loop C has counterclockwise current. E. Loop A has counterclockwise current, loop B has no induced current, and loop C has clockwise current.
The mass number is equal to the number of what particles in the nucleus?
A) protons B) neutrons C) nucleons D) electrons E) positrons.
Which of the following radiations has the smallest wavelength?
a. Infrared b. Visible c. Ultraviolet d. X-rays