The second is currently defined as
A) 1/86,400 of a mean solar day.
B) 1/86,164 of a sidereal day.
C) 1/31,557,600 of the period of the Earth's rotation around the Sun.
D) the time required for light to travel 1/299,792,458 of a meter.
E) the time that it takes the radiation from a Cesium-133 atom to complete 9,192,631,770 cycles of oscillation.
E
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a. less than b. greater than c. equal to d. less than or equal to e. greater than or equal to
First Law of Thermodynamics: During an isochoric process, the internal (thermal) energy of a gas decreases by 50 J. How much heat is added to the gas during this process?
A. 0 J B. 50 J C. -50 J D. 25 J E. -25 J
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A) decreases with increasing values of n. B) increases with increasing values of n. C) remains constant for all values of n. D) varies randomly with increasing values of n.
If a wave has a frequency of 6 Hz, it has a period of
a. 1/6 s. b. 6.5 s. c. 6 s. d. 3 s.