8. Centripetal Forces & Gravitation
Energy of Circular Orbits
8. Centripetal Forces & Gravitation
Energy of Circular Orbits - Video Tutorials & Practice Problems
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Energy of Circular Orbits
Video duration:
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2
Problem
ProblemThe 12,000-kg Lunar Command Module is in a circular orbit above the Moon's surface. If it spends ¼ of its fuel energy ( J) bringing it to a circular orbit just above the surface, how high was its original orbit?
A
m
B
m
C
m
D
m
3
Problem
Problema) How much work do you have to do on a 100-kg payload to move it from Earth's surface to a height of 1000 km?
b) How much additional work must you do to put this payload into orbit at this altitude?
A
(a) J;
(b) J
B
(a) J;
(b) J
C
(a) J;
(b) J
D
(a) J;
(b) J
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