A real gas is changed slowly from state 1 to state 2. During this process no work is done on or by the gas. This process must be:
A. isothermal
B. adiabatic
C. isovolumic
D. isobaric
E. a closed cycle with state 1 coinciding with state 2
Ans: C. isovolumic
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Electromagnetic radiation:
A) can only travel in a dense medium. B) has only the properties of waves. C) can behave both as a wave and as a particle. D) is the same as a sound wave. E) has nothing in common with radio waves.
Earth's radius is 6.38 × 106 m, and it completes one revolution every day. What is the tangential speed of a person standing on the equator?
A) 232 m/s B) 148 m/s C) 464 m/s D) 21.5 m/s E) 73.8 m/s
At a quiet pond with crystal clear water, you decide to fish with bow and arrow. When you aim at the fish you see, you must aim
A) closer to the surface then you perceive the fish to be. B) directly at the fish. C) deeper then you perceive the fish to be. D) It depends on how large the fish is. E) It depends on how deep the pond is.
An object with twice as much mass as another object has twice as much
A) inertia. B) speed. C) acceleration due to gravity. D) all of the above