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blackheart

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1. A 962kg satellite orbits the Earth at a constant altitude of 99km. How much energy must be added to the system to move the satellite into a circular orbit with altitude 195km?

2. Homework Equations :

E = (-GMm)/2r

[tex]\Delta E[/tex] = E

3. My work (which produced the wrong answer)...

Ei = (-GM

Ef = (-GM

[tex]\Delta E[/tex] = ((-GM

The answer needs to be in MJ. I got 858MJ which is incorrect.

2. Homework Equations :

E = (-GMm)/2r

[tex]\Delta E[/tex] = E

_{f}- E_{i}3. My work (which produced the wrong answer)...

Ei = (-GM

_{E}m_{s})/(2(r_{E}+ 99000m))Ef = (-GM

_{E}m_{s})/(2r(_{E}+ 195000m))[tex]\Delta E[/tex] = ((-GM

_{E}m_{s})/2)((1/r_{f})-(1/r_{i})The answer needs to be in MJ. I got 858MJ which is incorrect.

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