Purchase Solution

# Angular Velocity and Rotational Energy

Not what you're looking for?

A disk of radius .3 meters and mass of .5kg is held over another disk of radius .5 meters and mass 1 kg which is rotating in a horizontal plane at a rate of 15.92 rev/sec. The top disk is released and drops onto the bottom disk (centers align).

a) What is the final angular velocity (in rev/sec) of the two disks?
b) What was the change in rotational energy of the two-disk system?

##### Solution Summary

The solution provides step-by-step calculation for final angular velocity and rotational energy in a two-disk system.

##### Solution Preview

See the attached file.

Question a)

For the system, the total energy did not change, ...

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.