Question

Find the energy needed to place a 1.6 kg satellite, initially at rest on Earth's surface, into geosynchronous orbit

Answer 1

Geosynchronous Orbit

An object in geosynchronous orbit if its at a height where in its orbital motion exactly counters the gravitational force of the planet it orbits on. This height is the where satellites are placed.

U = -(6.674*10^-11 * 1.6 * 5.972*10²⁴) /(35.792*10⁹)

U = -17817.22 J

The negative sign indicates that the force applied to the object is an attractive force, or that it pulls down the object towards the center of the Earth.

I hope it was helpful..