- #1
Jtappan
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Homework Statement
The Sun emits electromagnetic waves (including light) equally in all directions. The intensity of the waves at the Earth's upper atmosphere is 1.4 kW/m2. At what rate does the Sun emit electromagnetic waves? (In other words, what is the power output?)
____ W
Homework Equations
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The Attempt at a Solution
I have no idea how to do this one...
I know it involves I = P/A