A solar array (containing 225 panels) at DIA converts light energy to electric potential energy with an efficiency of 28%. How much electric potential energy can be produced by the array each day of 33,000 J of energy reach each solar panel?

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?