Answer:
The electrical force is 9N
Explanation:
For point loads, charged bodies very small compared to the distance r that separates them, Coulomb discovered that the electric force is proportional to [tex]\frac{1}{r^{2}}[/tex]. So, if the distance is doubled, the force will decrease a [tex]\frac{1}{4}[/tex] of its initial value.
[tex]F=\frac{36N}{4}=9N[/tex]
