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Consider a cloudless day when the sun shines down across the United States.

Consider a cloudless day when the sun shines down across the United States. If 2343 kJ of energy reaches a square meter (m2) of the United States in one hour, how much total solar energy reaches the entire United States per hour? The entire area of the United States is 9,158,960 km2.

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Approach used:- here we simply multiply the rate of energy reaching per square meter to total area to find total energy, Energy absorvs per hour per m2 is

> the area of the US is supposed to be in 9158960 km^2 though, why was m^2 used?

Kelsey Brault Sun, Feb 13, 2022 5:13 PM

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