List two ways you use energy. how does each example involve a change?

What is the final velocity of the initial velocity of 25 and -50?

Anybody wanna ? (picture included? )

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