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Statement of a problem № 3329

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A binary star is formed when two stars bound by gravity move around a com- mon centre of mass. Each component of a binary star has period of revolu- tion about their centre of mass, equal to 14.4 days and the velocity of each component of 220 km/s. Further, the orbit is nearly circular. Calculate (a) the separation of the two components and (b) the mass of each component.

Solution:
A binary star is formed when two stars bound by gravity move around a com- mon c

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