The gravitational force between a satellite and Earth's moon is 324 N. The mass of the moon is 7.3 * 1022 kg. If the distance from the moon to the satellite is 2.6 * 106 m, what is the mass of the satellite?

This can be solve using newtons law of gravity

F = G (m1*m2) / r^2

Where F is the gravitational force

G is constant 6.67x10^-11 Nm2/kg2

M1 and m2 are the mass of the two object

R is the distance

324 N = (6.67x10^-11 Nm2/kg2) (7.3 x 10^22) (m2) / (2.6x10^6 m) ^2

M2 = 449.82 kg is the mass of the satellite