Explain what causes beats and beating. a violinist tuning her violin plays her a-string while sounding a tuning fork at a 415 hz, and hears 5 beats per second. when she tightens the string, the beat frequency decreases. what should she do to tune the string to a, and what was the original untuned freq of her string?

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.