What is the force, in terms of Coulomb's constant, between two electrical charges of #18 C# and #-14 C# that are #15 m # apart?
This is solved using Coulomb's Law,
The force, in this case attraction (since the charges are opposite), is given by
and r is the distance between them, in this case 15 m.
I think you will find it to be an absurdly large number.