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Kepler's relation between period and orbital radius
Asked by: droducla
from SANTA MARIA, CA
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a) Work out the orbital velocity of a comet in an orbit of radius r around the Sun. (Remember that the orbital circumference is 2 pi r)
b) As the comet comes close to the Sun, it begins to emit gas. Here we consider the neutral gas and imagine that it is streaming away from the Sun. Use the result of part a to explain why the comet's neutral tail bends back, lagging the comet in its motion.
b) As the comet comes close to the Sun, it begins to emit gas. Here we consider the neutral gas and imagine that it is streaming away from the Sun. Use the result of part a to explain why the comet's neutral tail bends back, lagging the comet in its motion.
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a)
- In the case of an elliptic orbit:
v^2=GM[(2/r)-(1/a)]
- In the case of a parabolic orbit:
v^2=2GM/r
...
- In the case of an elliptic orbit:
v^2=GM[(2/r)-(1/a)]
- In the case of a parabolic orbit:
v^2=2GM/r
...
Answer Date: 03:59pm 03/10/08
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Maybe you should consult your physics teacher about is :S
Answer Date: 10:07pm 03/08/08
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