Answer: The distance of the orbiting object to Earth
Explanation: Gravitational force is equal to the cenrtipetal force and because of that:
[tex]G Mm/r^{2} = m * v^{2} / r[/tex] and for the tangential speed of an orbiting object: [tex]v=\sqrt{\frac{GM}{r}[/tex] in which we can see that there are three quantities G, M and r where r is referring to the distance of the orbiting object to Earth.
