Sobre as ondas mecânicas e as ondas eletromagnéticas marque a alternativa correta: a) Transportam energia sem transportar matéria.
b) Transportam matéria e energia.
c) Transportam energia, porém, apenas as ondas mecânicas também transportam matéria.
d) Não têm nada em comum.

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

When you turn on a battery-operated device, an electrical circuit is

At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?