A volleyball player A spikes a 0.10 kg ball with an initial velocity of 12 m/s. The ball is recovered by player B on the opposite side who hits the ball in the opposite direction with a velocity of 20 m/s. What impulse was delivered to the ball by player B

answer: he got 23

explanation:

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.