Mason lifts a box off the ground and places it in a car that is 0.50 meters high. if he applies a force of 8.0 newtons to lift this suitcase, what is the work done?

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

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 is the relationship between the direction of motion of the balloon and the wind currents