(The mass of Mercury is 3.3 1023 kg and its radius is 2.4 106 m.) N (b)Calculate the magnitude of the gravitational force exerted by the human on...

(The mass of Mercury is 3.3 1023 kg and its radius is 2.4 106 m.) N (b)Calculate the magnitude of the gravitational force exerted by the human on Mercury. N (c) For comparison, calculate the approximate magnitude of the gravitational force of this human on a similar human who is standing 3 meters away. N (d) What approximations or simplifying assumptions must you make in these calculations?