Architectural Designs

Physics? EASY QUESTION!!! 10 points QuIcK!!?

If temperature is measured in C and heat flow rate is measured in cal/sec, what are the units of thermal resistance? The thermal conductivity of a material depends on a) thickness of the material b) type of material c) temperature difference across the material d) surface area of the material An architect designs an office building with large windows. Each window has length L, width W, and thickness deltaX. How can the architect reduce the heat flow rate through each window? a) Use a material with a higher thermal conductivity. b) Increase L and/or W. c) Increase deltaX. d) All of the above. THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Public Comments

1. the first one is c and the second one is D
2. Not sure, but it would have to be something like: DegreeSec/Cal a) c) a) will allow heat to go through faster b) will increase the area of the window and so loose more heat.
3. i disagree with the first person, the answer is b.