https://phet.colorado.edu/en/simulations/coulombs-law

1. Calculate the electrostatic force between +1nc and -1nc charges at a distance of 10 cm from each other. Do not forget to mention the direction of the force, too. 2. Calculate the electrostatic force between -1nc and -1nc charges at a distance of 10 cm from each other. Do not forget to mention the direction of the force, too. 3. Calculate the electrostatic force between +1nc and +1nc charges at a distance of 10 cm from each other. Do not forget to mention the direction of the force, too.

please include screenshots as I am better with visual .