Understand that since Potential is a scalar potentials simply add.Understand that the potential does not have to be zero if the field is zero.Use potential wells and hills to represent fields.Derive the escape velocity equation and show that the escape velocity from the earth is 11kms-1 .Show that for circular orbits T2 ∝ R3.Derive an equation for the total energy of a satellite in a circular orbit.Understand why an...