Answer:
<em>To raise the mass to an altitude of 12,000 Km 2E joules are required.</em>
Explanation:
<u>Gravitational Potential Energy</u>
It's the energy stored in an object because of its vertical position or height in a gravitational field.
It can be calculated with the equation:
U=m.g.h
Where:
m = mass of the object
h = height with respect to a fixed reference
g = acceleration of gravity, or .
If a mass has a height h1, its potential energy is
If a mass has a height h2, its potential energy is
The ratio of both potential energies is:
Simplifying:
Solving for U2:
Since U1=E:
To raise the mass to an altitude of 12,000 Km 2E joules are required.