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Q. 39

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 229

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Short Answer

At midday, solar energy strikes the earth with an intensity of about kW/m2 . What is the area of a solar collector that could collect MJ of energy in h? This is roughly the energy content of gallon of gasoline.

Area of the collection is m2

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Step by Step Solution

Step 1. Given information

The earth with an intensity kW/m2

Step 2. Area of collector

We know that intensity of solar energy as power. Power that collector can be calculated as

From there we can easily required area of collector

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