The mechanical energy of an object equals its
a. chemical energy plus its nuclear energy.
b. kinetic energy plus its potential energy.
c. nuclear energy.
d. thermal energy.

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

Diamond will scratch quartz. true or false

The air that we breath is made mostly of which gaseous molecule