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When you step from the shade into the sunlight, the Sun’s
Chapter 1, Problem 6E(choose chapter or problem)
When you step from the shade into the sunlight, the Sun’s heat is as evident as the heat from hot coals in a fireplace in an otherwise cold room. You feel the Sun’s heat not because of its high temperature (higher temperatures can be found in some welder’s torches), but because the Sun is big. Which do you estimate is larger, the Sun’s radius or the distance between the Moon and Earth? Check your answer in the list of physical data on the inside back cover. Do you find your answer surprising?
Questions & Answers
QUESTION:
When you step from the shade into the sunlight, the Sun’s heat is as evident as the heat from hot coals in a fireplace in an otherwise cold room. You feel the Sun’s heat not because of its high temperature (higher temperatures can be found in some welder’s torches), but because the Sun is big. Which do you estimate is larger, the Sun’s radius or the distance between the Moon and Earth? Check your answer in the list of physical data on the inside back cover. Do you find your answer surprising?
ANSWER:Sunlight The main methods of heat transfer is : 1, Radiation, 2, Convection and, 3, Conduction. The above figure explain the how the heat transfer into different method. Radiation: The main example of radiation is Sunlight. When you are out in the sun you get warm because the sun is shining on you and absorb heat from the light hitting you. You get sunburned heat if you absorb too much ultraviolet radiation which is energetic enough to damage skin cells. We don’t notice radiation unless we near something hot because most everything is at room temperature. Convection: Example of convection is w ind chill. The wind blowing on you