Consider a cloudless day when the sun shines down across the United States. If 2

Question

Consider a cloudless day when the sun shines down across the United States. If 2899 kJ of energy reaches a square meters (m2) if 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.. Consider a cloudless day when the sun shines down across the United States. If 2899 kJ of energy reaches a square meters (m2) if 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..

Explanation / Answer

Sol. As Solar Energy reaches for 1 m2 area in one hour = 2899 KJ

And Entire area of United States = 9158960 Km2

since 1 Km = 1000 m , so , 1 Km2 = 106 m2  

Now , entire area of United States = 9158960 × 106 m2

So , Total solar energy reaches for entire area in one hour

= 2899 × 9158960 × 106  = 26551825040000000 KJ

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