Question

The potential energy of a satellite having mass 'm' and rotating at a height of 6400km from the earth's surface is. 1)-mgR 2)-2mgR. c)0.5mgR d)4 mgR

Answer 1

Its mgr.

m=mass.

g=gravitational force.

R= Height.

Explanation:
Potential energy 

PE= -GMm/(R+h)

G = 6.674 08 x 10-11 m3 kg-1 s-2

M = 5.9722×1024 kg

m = mass of satellite

R = 6.371*106 m

h = 6.4*10^6

Hope it clears.

Answer 2

Answer:

I hope this is the correct answer