The gravitational force between pluto and charon is 3.61 × 1018 n. pluto has a mass of 1.3 × 1022 kg, which is only slightly greater than charon’s mass of 1.6 × 1021 kg. how far apart are pluto and charon?

Gravitational force is the force that attracts objects having mass. This value is directly proportional to the masses of the objects. However, it is proportional inversely with the square of their distance. We can calculate the distance of the two as follows:

F = Gm1m2 / r^2      where G is 6.7x10^-11 Nm^2/kg^2

3.61 × 10^18 N = 6.7x10^-11 Nm^2/kg^2 (1.3 × 10^22 kg)(1.6 × 10^21 kg) / r^2

r = 5.09x10-8 m

5.8 x 10 to the 24th power

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