Satellite a revolves around earth 5 times a day. what is the radius of its orbit, measured from earth's center? assume that earth generates the only significant gravitation attraction on the satellite. note: the mass of earth is 5.98 × 1024 kg, and the constant of universal gravity (g) equals 6.674 × 10-11 n · m2/kg2.

0.69 × 107 m

7.22 × 107 m

2.11 × 107 m

1.44 × 107 m