Author Question: Electric generating plants are usually rated in megawatts. This is a unit of A) force. B) ... (Read 42 times)

pragya sharda · **on:** Jul 29, 2018

Electric generating plants are usually rated in megawatts. This is a unit of

A) force.
B) power.
C) energy.
D) both energy and work.
E) work.

Question 2

A light-weight potter's wheel, having a moment of inertia of is spinning freely at 40.0 rpm. The potter drops a small but dense lump of clay onto the wheel, where it sticks a distance 1.2 m from the rotational axis.

If the subsequent angular speed of the wheel and clay is 32 rpm, what is the mass of the clay?
A) 3.7 kg B) 4.6 kg C) 4.2 kg D) 2.8 kg