The oxygen molecules and the nitrogen molecules at any one place in our atmosphere are at the same temperature. How do the root-mean-square speeds of the two molecules compare?
A) same
B) N2 > O2
C) O2 > N2
B
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Fill in the blank(s) with correct word
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A. the one thrown upward B. the one thrown downward C. they hit with the same speed D. it depends on the initial height
Suppose you are out on a frozen lake, where there is no friction. Which of the following would start you moving towards the shore?
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A spaceship approaching an asteroid at a speed of 0.60c launches a scout rocket with speed 0.40c relative to the spaceship. At what speed is the scout rocket approaching the asteroid?
A) 0.81c B) 1.0c C) 0.76c D) 0.64c E) 0.96c