Energy is the ability to
a. do work.
b. exert force.
c. transfer heat.
d. create or destroy matter.

A As energy is the ability to do work... And exerting force and transfering heat falls under work

Energy is the ability to do work. 

 A. do work.

One splits the atoms and molecules  the other combines them

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then