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Problem 20.29 Constants Periodic Table Part A The intensity of electromagnetic waves from the sun is 1.4 kW/m2 just above the earths atmosphere. Eighty percent of this reaches the surface at noon on a clear summer day. Suppose you think of your back as a 33.0 cm x 48.0 cm rectangle. How many joules of solar energy fall on your back as you work on your tan for 1.10 hr? Express your answer with the appropriate units. Value Units Submit Previous Answers Request Answer

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