A planet is in orbit around the Sun. The semimajor axis of the orbit is 5 AstronomicalUnits (AU). UseP2=a3to calculate the period of the orbit in years.

a) 5 years
b) 0.2 years
c) 135 years
d) 125 years
e) 11.2 years


Answer: e) 11.2 years

Physics & Space Science

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