Electricity produces work when the electrons in a conductor

a. become positive.

b. stop all movement.

c. stay negative.

d. are placed in motion.

A cylinder of diameter 100 mm rolls from restdown a 5 m long ramp and its center of mass is moving with velocity 2 m/s at the bottom of the ramp. (a) What is its (constant) acceleration down the ramp? (b) What is its angular acceleration?

Susan works 8 hours a day and makes $7.00 per hour. How much money does Susan earn in one week if she works 5 days per week?

Why does the atomic mass only include protons and neutrons (not electrons) ?

In a chemical reaction, the total mass of the reactants is 10.0 grams. After the reaction, the total mass of the products must be:

A 1,400 kilogram car travels in a straight line at 10.0 m/sec. what is the momentum

What happens to the total mechnical energy of the apple as it falls from the tree?

Fair Bonus Question: Derive the equation for gravitational potential energy, starting with the definition of work.

A juggler throws a bowling pin into the air with an initial velocity. Another juggler drops a pin at the same instant.

The liquid electrolyte in the battery typically takes what kind of net charge? a. positive b. negative c. neutral

Relating to Newton's Third Law, action and reaction, what is the reaction when a rocket expels gas, smoke and flames from the nozzle end of the rocket engine?