What is power? give the formula

The magnitude of the charge of the electron is: a. Exactly the same as the magnitude of the charge of the proton. b. Much greater than the magnitude of the charge of the proton. c. Zero. d. Much less than the magnitude of the charge of the proton. e.

Two charges separated by 1 m exert 1 N forces on each other. If the charges are pushed to 1/4m separation, the force on each charge will be

When ironing clothes, the primary method of heat transfer is

If one light bulb is removed from a parallel circuit with three bulbs, the brightness of the other bulbs will decrease.

A 3.0 kilogram object is acted upon by an impulse having a magnitude of 15 Newton•seconds. What is the magnitude of the objects change in momentum due to this impulse?

A force between two objects?

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?