A diver comes off a board with arms straight up and legs straight down, giving her a moment of inertia about her rotation axis of 18 kg⋅m2. She then tucks into a small ball, decreasing this moment of inertia to 3.6 kg⋅m2. While tucked, she makes two complete revolutions in 1.2 s.

If she hadn't tucked at all, how many revolutions would she have made in the 1.5 s from board to water?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?

Agirl throws a ball. if the ball's acceleration is 12 m/sec/sec and its mass is 0.5 kg, how much force did the girl apply to the ball?