A 0.2 kg tennis ball starts at rest and then a racket applies a force of 2400 N for 0.3
seconds. Find the momentum of the ball,

If you mix chlorine lithium in nickel together which two elements would be the most reactive

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.