A ball of 5 kg is moving towards the wall at 6 m/s. After a while, it hits the wall and rebounds back at 4 m/s in the opposite
direction. What is the work done on it?

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c