The force of gravity causes all objects near earth's surface to fall with an acceleration of 20 m/s2. true or false.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

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