Posted by lonia on Friday, April 26, 2013 at 11:27am.
(a)what is the magnitude of the gravitational force of the earth on a surveillance satellite of mass 1040kg that is in a grazing circular orbit 100 km above the surface of the earth.
(b)find the magnitude of the acceleration of the satellite in such a grazing orbit.
(c)determine the speed of the satellite.
take the mass and radius of the earth as 5980000000000000000000000 kg and 6370000m respectively

physics for physical science  MsyteryWoman, Friday, April 26, 2013 at 2:40pm
The gravitational constant
G =6.67•10⁻¹¹ N•m²/kg²,
h=100000 m
m=1040 kg
Earth’s mass is M = 5.98•10²⁴kg,
Earth’s radius is R = 6.37 •10⁶ m.
(a) F =G•m •M/(R+h)²
(b) a= G• M/(R+h)²
(c) mv²/(R+h) = G•m •M/(R+h)²
v=sqrt (G•M/(R+h)) 
physics for physical science  kelly, Sunday, April 28, 2013 at 7:12pm
2.232667747500