physics question, please help, satellites?

[DeJ3]

A satellite orbits the earth with a constant speed at a height 1000 km (1000000 m) above the
earth’s surface. Given that the radius of the earth’s surface, R = 6.38 x 106 m, the mass of
the earth, M = 5.98 x 1024 kg, and the value of the gravitational constant is G = 6.67 x 10-11
N m2/kg2, the speed v of the satellite is:

 

[andyrrts]

its so easy dammit !
open your resnick-halliday and follow the steps given. these are easy questions which anybody can solve.

which univ r u from ?