A ball is projected horizontally from the top of a building. One second later, another ball is projected horizontally from the same point with the same velocity.(a) At what point in the motion will the balls be closest to each other?They stay equidistant from each other throughout the motion. the instant the first ball hits the ground the instant the second ball is projected one second after the second ball is projected

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.