Determine the apparent brightness

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Reference no: EM13177740

Earth is about 150 million kilometers from the Sun, and the apparent brightness of the Sun in our sky is about 1300 watts/m2. Using these two facts and the inverse square law for light, determine the apparent brightness that we would measure for the Sun if we were located at the following positions.

Half Earth's distance from the Sun.
Twice Earth's distance from the Sun.
9 times Earth's distance from the Sun.

Reference no: EM13177740

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