3. Calculate both the electrical and gravitational forces between the electron and proton in a Hydrogen atom. The masses and charges of the elec- tron and proton are me = 9.1 x 10- kg, mp = 1.7 x 10 kg, q. = -1.6 x 10 " C, and qp = +1.6 x 10 * C, and their separation is r = 1.0 x 10-10 m. Which force, electrical or gravitational, is stronger? By how much? 1 1