Two cars simultaneously collide with a telephone pole. The car moving north exerts a force of 1300 N. The car moving west exerts a force of 2500 N. What is the magnitude of the net force on the telephone pole?

Why is metal often used for cooking pan?

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

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?