A 722-kg satellite is in circular orbit 7380 km above the surface of Earth (M = 5.98 10^24 kg). The gravitational force acting on the satellite is*

a) 1.52 10^3 N b)5.29 10^9 N c)5.29 10^3 N d)7.33 N e)7.08 10^3 N

The radius of Mercury is 2.57 10^6 m. If g = 3.52 N/kg on the surface of Mercury, the mass of Mercury is*

a)1.4 x 10^17 kg b)4.8 x 10^24 kg c)9.7 x 10^22 kg d)8.0 x 10^-3 kg e) 3.5 x 10^23 kg

f)3.5 x 10^22 kg g)9.7 x 10^23 kg