Put values in this formula, you will get the answer.
F=Gm^2/r^2
G=6.67X10^-11
Answer:
A. 70 m OS the correct one
c) Water molecules melt into gas molecules.
That an item is neither moving nor staying still in a position that is building up energy.
Explanation:
The heat causes the molecules on rubbing surfaces to move faster and have more energy.
Sodium (Na) is a Alkali metal so that's the answer