4. Suppose that 2 micro g of hydrogen is separated into its constituent protons and electrons, and that the protons are all grouped together at one point, and the electrons at another point, 3 meters apart What is the magnitude of the force between the two groups of charge?

False. The escape velocity is the minimum velocity an object needs to reach in order to break free of the gravitational pull of a body. So if a rocket reached escape velocity it would continue away from Earth without further propulsion being required.