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A planet of mass ?=4.55×1024 kg is orbiting in a circular path a star of mass...

A planet of mass ?=4.55×1024 kg is orbiting in a circular path a star of mass ?=8.55×1029 kg . The radius of the orbit is ?=1.75×107 km . What is the orbital period (in Earth days) of the planet ?planet ?

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Answer #1

When orbit of planet is circular,the gravitational forces experienced by the planet is equal to the centripetal force

Speed =Distance /Time

In this case Time is Time Period and distance is circumference of circular orbit

Convert Radius from km to m

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