Two identical conducting spheres are placed 80.0 cm apart. one is given a charge of 5.8 c and the other is given a charge of 6.4 c. find the electric force exerted on one sphere by the other.

Explanation:

According to Coulomb's Law:  

"The electrostatic force between two point charges and is proportional to the product of the charges and inversely proportional to the square of the distance that separates them, and has the direction of the line that joins them".

Mathematically this law is written as:

Where:

 is the electrostatic force

is the Coulomb's constant  

and are the electric charges

is the separation distance between the charges

Solving:

it takes about 30 days for it to break down