Physics

Problem

1. What is the gravitational potential at a distance from the earth's centre equal to 5 earth radii? (earth mass =

6.0 \times 10^{24}

kg, earth radius =

6.4 \times 10^3

km.) 2. What is the gravitational potential energy of a 500 kg satellite placed at a distance from the earth's centre equal to 5 earth radii?