Task 20684.
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- Physics
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- 29.12.2016 19:52:32
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- Юрий Физик · about the seller and their products
DESCRIPTION
Task 20684.
Determine the thickness of a sandy soil, if during the 3 hour through an area of 1 ha J. 511 passes the heat. The temperature at the surface of the soil 20 ° C, and a lower layer 7 ° C. Determine how many times the thermal conductivity of the process in sandy soil more intensively than in the air.
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Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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