The ceiling of a room has an area of 125 ft2. The ceiling is insulated to an

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The ceiling of a room has an area of 125 ft2. The ceiling is insulated to an R value of 30 (in units of ft2. F° •h/Btu). The surface in the room is maintained at 69°F, and the surface in the attic has a temperature of 35°F. What is the heat flow through the ceiling into the attic in 5.0 h? Express your answer in Btu and in joules.
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Physics

ISBN: 978-1118486894

10th edition

Authors: David Young, Shane Stadler

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