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9 Cards in this Set
- Front
- Back
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Low Earth Orbit characteristics |
- 200-2000 km above earth -plane of orbit in north and south planes -doesnt stay in the same spot / orbit above earth -used for communication, surveillance, and monitoring weather -poor coverage |
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Geostationary characteristics |
-Same orbital period as the planet they orbit -constantly above one point on planet -angular speed matches earths orbital speed -used for phone signal and TV |
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Equipotential for a point mass |
Spherical with point mass as centre |
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Force between two point masses |
F= GmM/r^2 |
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Gravitational field strength |
g=F/m g=GM/r^2 g=-dV/dr |
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Gravitational potential, V |
V=-GM/r |
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Work done against gravity |
dW=mdV |
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Terminal Velocity |
v=sqrt(2GM/r) |
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Gravitational Potential Definition |
The potential energy of a point mass in a specific position |
