Asatellite that goes around the earth once every 24 hours (86,400 s) is called a geosynchronous satellite. if a geosynchronous satellite is in an equatorial orbit, its position appears stationary with respect to a ground station, and it is known as a geostationary satellite.

find the radius (as measured from the center of the earth) of the orbit of a geosynchronous satellite that circles the earth. (note that r is measured from the center of the earth, not the surface.) you may use the following constants:

the universal gravitational constant g is 6.667*10^-11 n*m*2/kg^2.
the mass of the earth is 5.98*10^24 kg.