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categoryهندسة ميكانيكية schoolبكالوريوس event_available2026-07-13

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3.7 The wall of a building is a composite consisting of a 100 mm layer of common brick, a 100 mm layer of glass fiber (paper faced, 28 kg/m³), a 10 mm layer of gypsum plaster (vermiculite), and a 6 mm layer of pine panel. If the inside convection coefficient is 10 W/m²K and the outside convection coefficient is 70 W/m² K, what are the total resistance and the overall coefficient for heat transfer".

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