10. A sphere at rest begins to spin with constant angular acceleration. When its angular displacement is 10
radians, its angular velocity is 5 radians per second.
What is its angular acceleration?
A) 0.25 rad/s2 B) 0.5 rad/s2
C) 1 rad/s2
D) 1.25 rad/s2
E) 2.5 rad/s2

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.