Mr. Mullenmeister is photocopying lab sheets for his first-period class when the toner light on the onA particle of toner carrying a charge of the copying machine experiences an electric field of 1.2 * 10 ^ 6 * N / C as it's pulled toward the paper. What is the electric force acting on the toner particle? F=4.5=(40*10^ C)(1.2*106N/C)=4.8*10^ .5

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Which is a substance that can be separated by physical means and is not the same throughout

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the