Engineering, 07.04.2020 00:19, sherifour

17â35E A 0.03-in-thick copper plate (k 5 223 Btu/hÂ·ftÂ·Â°F) is sandwiched between two 0.15-in-thick epoxy boards (k 5 0.15 Btu/hÂ·ftÂ·Â°F) that are 7 in 3 9 in in size. Determine the effective thermal conductivity of the board along its 9-in-long side. What fraction of the heat conducted along that side is conducted through copper?

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17â35E A 0.03-in-thick copper plate (k 5 223 Btu/hÂ·ftÂ·Â°F) is sandwiched between two 0.15-in-thick...