After 1911 most scientists accepted<span> the </span>theory<span> that the </span>nucleus<span> of an </span>atom<span> was </span>very dense<span> and </span>very small<span> and </span>has<span> a </span>positive charge<span>. </span>
The answer is: Mechanical energy s used to produce electrical energy. I took the test hope this helps :)
I think its the brain or muscles... sorry if im wrong .
