A 0.25 kg tuning fork is tied to a string and whirled around in a horizontal circle of radius 0.75 m and at a speed of 5 m/s. How much work is done by the string after 10 rotations?
a. 312.5J
b. 117.8J
c. None
d. Not enough information

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?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Ajoint produces movement when its angle decreases. which type of movement is it?