I suppose this is a true or false question and that sentence is true.
Answer:
A. The nucleus can be either positively charged or neutral.
Explanation:
The nucleus of an atom contains protons and neutrons only. Whereas electrons revolve around the nucleus. Protons are positively charged, neutrons have no charge and electrons are negatively charged.
<span>F=ma = 3000x2m/sec^2 =6000 newtons. </span>
