A 0.75 kg cart moving at 2.1 m/s collides with another cart and bounces backward at 0.9 m/s. If the force applied to the cart was 4.5 N, for how much time did the collision last?

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

The speed of light can be used to measure the

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.