What is the period of a wave generated by an
earthquake, if it has a wavelength of 500 meters and a
speed of 5,000 meters per second?

True or false: the revolution of the earth creates day and night as it rotates around the sun

When does your body conduct current more readily?

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?