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23 Nov 2019
The total consumption of electrical energy in the United States isabout 1.0 x 10^19 joules per year.
1. What is the average rate of electrical energy consumption inwatts?
2. If the population of the United States is 300 million, what isthe average rate of electrical energy consumption per person?
3. The sun transfers energy to the earth by radiation at a rate ofapproximately 1.0kW per square meter of surface. If this energycould be collected and converted to electrical energy with 40%efficiency, how great an area (in square kilometers) would berequired to collect the electrical energy used by the UnitedStates?
The total consumption of electrical energy in the United States isabout 1.0 x 10^19 joules per year.
1. What is the average rate of electrical energy consumption inwatts?
2. If the population of the United States is 300 million, what isthe average rate of electrical energy consumption per person?
3. The sun transfers energy to the earth by radiation at a rate ofapproximately 1.0kW per square meter of surface. If this energycould be collected and converted to electrical energy with 40%efficiency, how great an area (in square kilometers) would berequired to collect the electrical energy used by the UnitedStates?
