Masses attract and that explains why there is a gravitational force between the moon and the Earth. But oppositely-charged objects also attract. Suppose the force of gravitational attraction between moon and Earth were replaced with a force of electrostatic attraction. What quantity of charge would the moon and the Earth need in order to match the gravitational attraction? Assume they have equal amounts of opposite charge. (NOTE: Mmoon = 7.36 x 1022 kg; MEarth = 5.97 x 1024 kg; G = 6.67 x 10-11 N•m2/kg2)