A man throws a 2kg ball straight up with a initial velocity of 1m/s. what is the PE of the ball highest point?

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 ph is the a.independent variable b.the dependent variable c.control group

Which planet do you think would be easiest for humans to colonize some day?