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Assume that the earth moves around the s...

Assume that the earth moves around the sun in a circular orbit of radius R and there exists a planet which also moves around the sun in a circular orbit with an angular speed twice as large as that of the earth. The radius of the orbit of the planet is

A

`2^(-2//3) R`

B

`2^(2//3) R`

C

`2^(-1//3) R`

D

`R/sqrt(2)`

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