College Physics
posted by Becky .
A 2.30cmthick wood floor covers a 4.0 m x 5.5 m room. The subfloor on which the flooring sits is at a temperature of 16.4 degrees celcius, while the air in the room is at 19.3 degrees celcius. What is the rate of heat conduction through the floor? Use 0.200 W / m x K for the thermal conductivity of wood.

Nvm. I found the answer :)
It's 555 W.
(.200 W/m x K)(22m^2)[(19.316.4)/0.0230 m]
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