Physics, 26.02.2020 20:28 adyenamaie02
The intensity of electromagnetic waves from the sun is 1.4 kW/m² just above the earth’s atmosphere. Eighty percent of this reaches the surface at noon on a clear summer day. Suppose you model your back as a 30 cm × 50 cm rectangle. How many joules of solar energy fall on your back as you work on your tan for 1.0 h?
Answers: 3
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The intensity of electromagnetic waves from the sun is 1.4 kW/m² just above the earth’s atmosphere....
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