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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Wave Characteristics: Which one of the following lists gives the correct order of the electromagnetic waves from longer wavelength to shorter wavelength?
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
A quanton is in a situation where its potential energy decreases to the right. As we go to the right, the wavelength of its energy eigen function
A. Increases. B. Remains the same. C. Decreases. D. Is undefined
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
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)