The average molecular kinetic energy of a gas can be determined by knowing only
A)
the number of molecules in the gas.
B)
the volume of the gas.
C)
the pressure of the gas.
D)
the temperature of the gas.
E)
all of the above must be known.
D
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__________is one of the Jovian planets
A) Saturn B) Mars C) Pluto D) Mercury
A spaceship departs from the solar system (event A) and travels at a constant velocity to a distant star. It then returns at a constant velocity, finally returning to the solar system (event B). A clock on the spaceship registers which of the following kinds of time between these events?
A. Proper time B. Coordinate time C. Space time interval D. Proper time and space time interval E. Coordinate time and space time interval F. All three
Two objects are thrown from the top of a tall building and experience no appreciable air resistance. One is thrown up, and the other is thrown down, both with the same initial speed. What are their speeds when they hit the street?
A) The one thrown up is traveling faster. B) The one thrown down is traveling faster. C) They are traveling at the same speed.
Which of these is the classic continuous spectrum?
A) sunlight B) a rainbow C) a neon light D) a fluorescent light E) a glowing nebula, such as M-42