a global positioning system (gps) satellite moves in a circular orbit with period 11 h 58 min. (assume the mass of the earth is 5.98 ✕ 1024 kg, and the radius of the earth is 6.37 ✕ 106 m.) (a) Determine the radius of its orbit. (b) Determine its speed. (c) The non military GPS signal is broadcast at a frequency of 1 575.42 MHz in the reference frame of the satellite.