Plz help, taking a test. Will mark brainliest!!

A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?