# Physics

In a binary star system, two stars orbit about their common center of mass, as shown in the figure .

If r2 = 2r1,
what is the ratio of the masses m2/m1 of the two stars?

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asked by Real
1. ratio of the radii is the same as the ratio of the masses for binary system.
so then m2/m1 would just be .5

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posted by Neeraj

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