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A planet is in circular orbit around the sun. its distance from the sun is nine times the average distance of the earth from the sun. the period of this planet, in earth years, is:

Respuesta :

A planet is in circular orbit around the Sun. Its distance from the Sun is four times the average distance of Earth from the Sun.The period of this planet, in Earth years, is :
 A) 4
B) 8
C) 16
D) 32
E) 2 

    The Answer is  B) 8. 
I took this test, I know that for sure. 

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