In what direction does the medium move relative to the direction of the wave

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

Astate of matter all that has define volume and can flow is a(n)

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?