Determine the intensity of the starlight at the earth

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Reference no: EM13521772

Consider a bright star in our night sky. Assume that its power output is 3.20 1028 W, about 80 times that of the Sun, and that its distance is 21.0 ly.

(a) Find the intensity of the starlight at the Earth.

(b) Find the power of the starlight that the Earth intercepts.

Reference no: EM13521772

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