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Sunlight Intensity After filtering through the atmosphere,
Chapter 25, Problem 57P(choose chapter or problem)
Problem 57P
Sunlight Intensity After filtering through the atmosphere, the Sun’s radiation illuminates Earth’s surface with an average intensity of 1.0 kW/m2. Assuming this radiation strikes the 15-m × 45-m black, flat roof of a building at normal incidence, calculate the average force the radiation exerts on the roof.
Questions & Answers
QUESTION:
Problem 57P
Sunlight Intensity After filtering through the atmosphere, the Sun’s radiation illuminates Earth’s surface with an average intensity of 1.0 kW/m2. Assuming this radiation strikes the 15-m × 45-m black, flat roof of a building at normal incidence, calculate the average force the radiation exerts on the roof.
ANSWER:
Step 1 of 2
The average pressure is given by,
The Sun’s radiation illuminates Earth’s surface with an average intensity,
Speed of light,
So,