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A concrete wall is 15.0 cm thick and has an area of 10.0 m2. A layer of wood that is 2.50 cm thick ...

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A concrete wall is 15.0 cm thick and has an area of 10.0 m2. A layer of wood that is 2.50 cm thick ...

A concrete wall is 15.0 cm thick and has an area of 10.0 m². A layer of wood that is 2.50 cm thick is placed over the wall to reduce the loss of heat by thermal conduction. The thermal conductivity of concrete is 1.70 W/m °C and the thermal conductivity of wood is 0.0400 W/m °C. What is the effective thermal conductivity of the wood-on-concrete system?

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0.245 W/m °C

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1.22 W/m °C

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1.65 W/m °C

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2.02 W/m °C

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2.34 W/m °C

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College Physics

Edition: 5^th

Author: Giambattista

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