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August 4, 2015

Homework Help: physics

Posted by simon on Tuesday, July 16, 2013 at 1:45pm.

A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 4.4 x 1020 m, and the angular speed of the star is 7.3 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center?

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