The force between two charges separated by a certain distance is 12 N. What is the force when the distance is doubled?

How do you tell if someone actually cares about you? and just say they do?

What is the speed of an object at a given moment?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th