A rocket explodes into two fragments, one 25 times heavier than the other. The magnitude of the momentum change of the lighter fragment is
A) 25 times as great as the momentum change of the heavier fragment.
B) The same as the momentum change of the heavier fragment.
C) 1/25 as great as the momentum change of the heavier fragment.
D) 5 times as great as the momentum change of the heavier fragment.
E) 1/4 as great as the momentum change of the heavier fragment.
B
You might also like to view...
A wave has peaks and troughs that can move matter up and down when the wave interacts with matter. The frequency of a wave is
A) the number of peaks passing by any point each second. B) the speed at which a wave moves through space. C) the distance between two adjacent peaks of a wave.
The Sun is not seen as yellow-green because
A) it is not yellow-green. B) it is small part of a mixture of other colors in sunlight. C) its brightness is only slightly greater than the other colors. D) our vision is not adapted to yellow-green.
A 10-kg rock and 20-kg rock are dropped from the same height and experience no significant air resistance. If it takes the 20-kg rock a time T to reach the ground, what time will it take the 10-kg rock to reach the ground?
A) 4T B) T/2 C) T D) 2T E) T/4
Compared to when it was on the surface, a satellite in an orbit whose radius is about 4 times the Earth's radius will experience about 1/16 the force due to the Earth's gravity
Indicate whether the statement is true or false