SanjanaSenthil
New Member
- Joined
- May 7, 2012
- Messages
- 10
- Gender
- Female
- HSC
- 2013
1. A satellite with mass 200kg maintains a stable orbit of 300km above the Earths surface. Determine the Gravitational Potential Energy of the satellite.
2. A 2000kg satellite is to be placed in a circular orbit 8000km above the Earths surface. The radius of the Earth is 6380km.
a) Calculate the GPE of the satellite before launch.
b) Calculate the GPE of the satellite in orbit,
c) Calculate the work done against gravity to raise the satellite to this height.
d) Explain why the energy needed to place a satellite in orbit is greater that the work required to lift the satellite to the correct height.
3. Two asteroids in deep space each have a mass of M kg and are separated by r km. The gravitational potential energy of the asteroid is E joules.
If separation between the asteroids were to decrease to r/2 km, describe the resulting gravitational potential energy.
Thanks!!!
2. A 2000kg satellite is to be placed in a circular orbit 8000km above the Earths surface. The radius of the Earth is 6380km.
a) Calculate the GPE of the satellite before launch.
b) Calculate the GPE of the satellite in orbit,
c) Calculate the work done against gravity to raise the satellite to this height.
d) Explain why the energy needed to place a satellite in orbit is greater that the work required to lift the satellite to the correct height.
3. Two asteroids in deep space each have a mass of M kg and are separated by r km. The gravitational potential energy of the asteroid is E joules.
If separation between the asteroids were to decrease to r/2 km, describe the resulting gravitational potential energy.
Thanks!!!