A girl hits a baseball with a bat. When the bat strikes the ball, what is the reaction force?
A. Earth's gravity pulls the ball down.
B. The ball accelerates upward.
C. The bat pushes against the girl's hands.
D. The ball pushes against the bat.

Does anyone have the answers to online physics course plato course physics, semester a v3.0

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?

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db