Use the value of the solar energy flux on Earth to determine the radius of the Sun. Determine the power of radiation from the Sun by noting that the intensity of the radiation at the distance of Earth is 1370 W/m2. Hint: That intensity will be found everywhere on a spherical surface with radius equal to that of Earth's orbit, 139.6 million km.

Physics for Scientists and Engineers: Foundations and Connections
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Chapter34: Maxwell’s Equations And Electromagnetic Waves
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Use the value of the solar energy flux on Earth to determine the radius of the Sun.

Determine the power of radiation from the Sun by noting that the intensity of the radiation at the distance of Earth is 1370 W/m2.
Hint: That intensity will be found everywhere on a spherical surface with radius equal to that of Earth's orbit, 139.6 million km.

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