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Can you explain please

4. As noted in the preceding example, the Sun delivers about 1 000 W/m² of energy to the
Earth's surface via electromagnetic radiation. (a) Calculate the total power that is incident on a
roof of dimensions 8.00 m ×20.0 m. (b) Determine the radiation pressure and the radiation force
exerted on the roof, assuming that the roof covering is a perfect absorber.
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Transcribed Image Text:4. As noted in the preceding example, the Sun delivers about 1 000 W/m² of energy to the Earth's surface via electromagnetic radiation. (a) Calculate the total power that is incident on a roof of dimensions 8.00 m ×20.0 m. (b) Determine the radiation pressure and the radiation force exerted on the roof, assuming that the roof covering is a perfect absorber.
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