Question

Find the height of a satellite from the surface of the earth if its orbital velocity is
4km/sec.​

Answer 1

Explanation:

A satellite orbits the earth at a height of 400 km above the surface. How much energy must be expended to rocket the satellite out of the earth's gravitational influence? Mass of the satellite =200 kg; mass of the earth =6.0×10

24

kg; radius of the earth =6.4×10

6

m; G = 6.67×10

−11

Nm

2

kg

−2

.

Answer 2

Answer:

100×10^6km

Explanation

h=GM/V^2-R

=6.67×10^-11×6×10^24-6400×10^3/(4)^2

=1×10^4m

=100×10^6km