Zaiden and lisa are testing music effects on plants

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

The strong nuclear force acts over a small distance than the electrostatic force. true or false

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.