A 3.4 kg ball strikes a wall with a velocity of 7.9 m/s to the left. The ball bounces off with a velocity of 5.5 m/s to the right. If the ball is in contact with the wall for 0.22 s, what is the constant force exerted on the ball by the wall

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

What are the applications of electromagnetic waves

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer