I would like some help with the question below: Calculate the gravitational field constants of the following planets: Mars (r = 3.43 x 10 ^ 6 m, m = 6.37 x 10 ^ 23 kg), Jupiter (r = 7.18 x 10 ^ 7 m, m = 1.90 x 10 ^ 27 kg), Mercury (m = 3.28 x 10 ^ 23 kg, r = 2.57 x 10 ^ 6 m).

Your help is appreciated!

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -