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Jupiter’s moon Io has an orbit around Jupiter with a constantradius of 420,000 km and completes an orbitin a period of 1.8 days.a)Does Io obey the standard version of Kepler’s laws? If not, which

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Jupiter’s moon Io has an orbit around Jupiter with a constant
radius of 420,000 km and completes an orbit
in a period of 1.8 days.
a)
Does Io obey the standard version of Kepler’s laws? If not, wh
ich laws are different and why?
b)
If Jupiter’s moon Europa has an orbit with a constant radius o
f 670,000 km, estimate how long Europa
should take to orbit Jupiter. You should answer this questio
n only with the information given above.