What are electromagnetic waves? a) things like longitudinal waves
b) ocean waves
c) sound waves
d) electric magnetic fields that travel through a space very quickly​

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

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.

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy