The fastest pitch ever recorded in MLB was thrown by Aroldis Chapman at 105.1 mph. If the 0.145 kg baseball accelerated at 96 m/s/s, how much
force did Chapman apply to the ball? Round your answer to the nearest
whole number.

You are sitting on the beach and wondering about the properties of mechanical waves. describe them in terms of ocean waves.

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.