Consider a cloudless day on which the sun shines down across the United States. If 2312 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.
1 answer
2312kJ/m^2 * 9158960km^2 * (1000m/km)^2 = ? kJ