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Two stars of equal mass form a binary system. If the two stars have an average...

Two stars of equal mass form a binary system. If the two stars have an average separation of 7.38 x 108 km, and the magnitude of the gravitational force is 2.97×1027 N between the stars, find the mass of each star in kg. Express your result in scientific notation and to three significant digits. Be careful with units!

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