hi guys im board free points and also i know some poel ask this im 14 and a girl pls dont coment if yuor a weirdo! thxs

What is the rate of change in a objects position?

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?