A0.1 kg bouncy ball moves toward a brick wall with a speed of 11 m/s. after colliding with the wall, the ball travels at a speed of 8.8 m/s in the opposite direction. what is the magnitude of the impulse experience by the ball?

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