a 750 newton passenger rides in an elevator ( that is 22,000 newtons) if the elevator ride is 95 seconds long and uses 7,700 watts of power, how far did the elevator move ?

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?

What happens to an isotope during radioactive decay?

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank