A ball is dropped from rest at a height of 45.0 m above the ground. Ignore the effects of air resistance, What is the speed of the ball when it is 10.0 m above the
ground?

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