The light energy that fa lls on a square meter of ground overthe course of a typical
Chapter 11, Problem 67(choose chapter or problem)
The light energy that fa lls on a square meter of ground overthe course of a typical sunny day is about 20 MJ. The averagerate of electric energy consumption in one house is 1.0 kW.a. On average, how much energy does one house use duringeach 24 h day?b. If light energy to electric energy conversion using solar cellsis 15% effi cient, how many square miles of land must becovered with solar cells to supply the e lectric energy for250,000 houses? Assume there is no cloud cover.
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