A charge of 3.93 C is used to test the electric field of a central charge that causes a force of 144 N. What is the magnitude of the electric field?

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

What are the north and south poles of a solenoid change with?