A 4. 6 kg rock falls off of a 13 m cliff. If air resistance exerts a force of 15 n, what is the kinetic energy when the rock hits the ground?.

What are the factors that affect the resistance of a wire?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

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