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Mathematics 11 Online
OpenStudy (anonymous):

I will fan anyone who answers this! 5. The luminosity of a star can be calculated by using the following equation. In the luminosity equation, represents the luminosity in watts, represents the radius of the star in meters, represents a constant equal to 5.67 × 10-8 Wm-2K-4, and represents the surface temperature in Kelvins. What is the approximate radius of a star with a luminosity equal to 2.532 × 1021 W and a surface temperature of 3,000 K? (Use = 3.14)

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