A robotic submersible is being brought back on board a ship. What happens to the buoyant force as the submersible is lifted out of the water? Write 2-3 sentences explaining your reasoning. (6 points)

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?