mohamedsaber90000 mohamedsaber90000
  • 07-01-2024
  • Physics
Answered

A slab of concrete and an insulating board are in thermal contact with each other. The temperatures of their outer surfaces are 68°F and 50°F. Determine the rate of heat transfer (in BTU/ft² h) if the R values are 1.93 and 8.7 ft². °F.h/BTU, respectively



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