Question

the moment of inertia of co molecupe is 1.46*10^-46 kg-m^2.capculatet the angular velocity for the lowedt rotatinal energy level​

Answer 1

Any moving object has kinetic energy. We know how to calculate this for a body undergoing translational motion, but how about for a rigid body undergoing rotation? This might seem complicated because each point on the rigid body has a different velocity. However, we can make use of angular velocity—which is the same for the entire rigid body—to express the kinetic energy for a rotating object. (Figure) shows an example of a very energetic rotating body: an electric grindstone propelled by a motor. Sparks are flying, and noise and vibration are generated as the grindstone does its work. This system has considerable energy, some of it in the form of heat, light, sound, and vibration. However, most of this energy is in the form of rotational kinetic energy.

Figure is a photo of a man sharpening a piece of metal on the rotating grindstone. Sparks from the grindstone are clearly evident.