Assuming the orbital radius of the moon is 3.85 x 108 m, find the linear speed of the moon.

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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?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of