When a fixed amount of ideal gas goes through an isobaric expansion,
A) its internal (thermal) energy does not change.
B) the gas does no work.
C) no heat enters or leaves the gas.
D) its temperature must increase.
E) its pressure must increase.
Answer: D
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A. Increases. B. Remains the same. C. Decreases. D. Is undefined
The period of a pendulum is the time it takes the pendulum to swing back and forth once
If the only dimensional quantities that the period depends on are the acceleration of gravity, g, and the length of the pendulum, L, what combination of g and L must the period be proportional to? Acceleration has dimensions of [L][T-2]. A) g/L B) gL2 C) gL D) E)
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A. radio waves, infrared, microwaves, ultraviolet, visible, x-rays, gamma rays B. radio waves, ultraviolet, x-rays, microwaves, infrared, visible, gamma rays C. radio waves, microwaves, visible, x-rays, infrared, ultraviolet, gamma rays D. radio waves, microwaves, infrared, visible, ultraviolet, x-rays, gamma rays E. radio waves, infrared, x-rays, microwaves, ultraviolet, visible, gamma rays
The process of converting a sequence of nucleotides in a section of DNA to a sequence of nucleotides in RNA, as a precursor to protein synthesis is called
A) encryption B) translation C) deciphering D) transcription