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A binary star consists of two stars A (...

A binary star consists of two stars A ( mass 2.2 `M_s`) and B (mass `11 M_s`), where `M_s` is the mass of the sun. They are separated by distance d and are rotating about their centre of mass, which is stationary. The ratio of the total angular momentum of the binary star to the angular momentum of star B about the centre of mass is

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