Suppose that 7.40 g of hydrogen is separated into electrons and protons. Suppose also that the protons are placed at the Earth's north pole and the electrons are placed at the south pole. What is the resulting compressional force on the Earth?

Answer 1

F = kq1q2/r^2
Have to find how many protons and electrons in .0074 kg of H2 and the radius of the Earth. Charge on each proton/electron is 1.6e-19 C.