A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.6 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. (Take the direction of the ball's final velocity (toward the net) to be the +x-direction.)
What is the impulse delivered to the ball by the racket?
What work does the racket do on the ball?

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.