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Home Q & A Board Science-Related Homework Help Physics
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Chery Chery
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7 years ago
A concrete wall of a cold storage room measures 3.0 m high, 5.0 m wide, and 20 cm thick. The inside wall is to be covered by a layer of wood in order to reduce the rate of thermal energy flow through the wall by 90 percent. The inner surface of the wooden wall is maintained at -10°C and the outer surface of the concrete wall is at 20°C. The thermal conductivities of concrete and wood are 0.80 W/m ∙ K (concrete) and 0.040  W/m ∙ K (wood). What is the temperature difference across the layer of wood?
A) 24 C°
B) 25 C°
C) 26 C°
D) 27 C°
E) 28 C°
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College Physics

College Physics


Edition: 1st
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HotMathHotMath
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7 years ago
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Chery Author
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#2
7 years ago
Looked all over the internet for this, thank you for answering correctly
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