Consider a cloudless day on which the sun shines down across the United States. If 2529 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.

Question

Physics

Cohen Mata

7 March, 21:40

Consider a cloudless day on which the sun shines down across the United States. If 2529 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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Answers (1)

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Krista Eaton · Answer 1

Answer:2.31 10^16 kJ

Explanation: The entire area of USA is 9158960*1000m*1000m=

9.16*10^12 m^2

So the total energy receibed from the sun in whole USA is:

E totalUSA = Area USA * 2529kJ=2.31 10^16 kJ

whre 2529kJ is energy given by the sun per square meter.