Finalize The ratio FJFx 2 times 1039 Therefore the gravitati
     Finalize The ratio FJF_x  2. times 10^39. Therefore, the gravitational force between charged atomic particles  Is negligible when compared with the electric force. Notice the similar forms of Newton\'s law of universal gravitation and Coulomb\'s law of electric forces. Other than magnitude, what is a fundamental difference between the two forces?  Two identical objects each hold a net charge of q = 8*. If the gravitational force between the two the electrostatic force between the objects, what is the mass of each object?   
  
  Solution
q = 8e
 e = 1.602*10^-19
 k = 8.99*10^9
 G = 6.67*10^-11
 
 mass(M) = q * Sqrt[k/G]
= 8*1.602*10^-19*sqrt(8.99*10^9 / 6.67*10^-11 )
= 14.879 * 10^-9 kg
=

