The 1.00-cm-long second hand on a watch rotates smoothly.
what is its angular velocity? what is the speed of the tip of the hand?

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

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

In automobile steering wheel is shown what is the ideal mechanical advantage blank? if the ama is eight what is the efficiency of the steering wheel?