is proportional to the square of the amplitude​

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

What is the scientific definition of energy that relates to work