A planet in another solar system has a solar constant S = 2,000 W/m 2 , and
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A planet in another solar system has a solar constant S = 2,000 W/m2, and the distance between the planet and the star is 100 million kilometers.
(a) What is the total power output of the star? (Give your answer in watts.)
(b) What is the solar constant of a planet located 75 million kilometers from the same star? (Give your answer in watts per square meter.)
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