The earth (mass =6xx10^(24)kg) revolves ...

The earth (mass `=6xx10^(24)kg`) revolves round the sun with an angular velocity of `2xx10^(-7)"rad/s"` in a circular orbit of radius `1.5xx10^(8)km.` The gravitational force exerted by the sun on the earth, in newtons, is

36 `xx` `10^21`

27`xx` `10^39`

zero

18`xx` `10^25`

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