Satellite A has twice the mass of satellite B, and moves at the same orbital distance from Earth as satellite B. Compare the speeds of the two satellites.
A) The speed of B is twice the speed of A.
B) The speed of B is one-half the speed of A.
C) The speed of B is one-fourth the speed of A.
D) The speed of B is equal to the speed of A.
E) The speed of B is four times the speed of A.
Question 2
You throw a rock horizontally off a cliff with a speed of 20 m/s and no significant air resistance. After , the magnitude of the velocity of the rock is closest to
A) 28 m/s.
B) 20 m/s.
C) 40 m/s.
D) 37 m/s.
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