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michaelsims michaelsims
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11 years ago
Kepler?s third law of planetary motion may be given as T=kr^3/2 where T is the time for one revolution of a planet around the sun, r is its mean radius from the sun, and k=1.115(10)^ -12   year/mi. Find the time for one revolution of Venus about the sun if r=6.73(10)^7 miles.
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#1
11 years ago
You have all the information toy need to do this. Just plug the figures you gave into your equation.
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#2
11 years ago
You can't do simple math?  Radius of earth from the sun is is 9.3x10^7 miles.  that makes Venus's radius from the sun .724 times the earth.  Raise it to the power of 3/2.  That's .616 earth years.
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