Which statement correctly describes the relationship between the energy of a wave and the wave’s amplitude? a. high energy waves have high amplitudes. b. low energy waves have high amplitudes. c. high and low energy waves have the same amplitudes.

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?