Calculate If the mass of a proton is 1.67x10-27 kg and the mass of an electron is 9.11×10-31 kg. calculate the force of gravitation between: a proton and an electron two electrons (i)a proton and an electron(ii) two electrons(iii) two protons. Take G = 6.67×10-11 Nm²kg 2, distance between the protons = 4.0 m, distance between the electrons = 2x10-2 m, distance between the proton and the electron 5.4×10-11 m.​