Two boxes are held together by a strong wire and attached to the ceiling of an elevator by a second wire (see diagram to the left). The mass of the top box is 14.2 kg; the mass of the bottom box is 10.4 kg. Assume that the acceleration due to gravity is 9.8 m/ s^2. Find the tension in the top wire (connecting points A and B)

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.