the moon orbits our earth. the opposite would never be true, the earth would never orbit the moon. One reason is due of the of the gravity. the object's has greater gravitational force and that determines what satellite orbit around it

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.