What is the maintain stable conditions inside the body

How much work does the charge escalator do to move 2.30 μc of charge from the negative terminal to the positive terminal of a 3.00 v battery?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.