Question: A 1.2 m by 2.4 m window has an R-factor of 2m2 K/W. If the average outside and inside temperatures are -20C and 22C,

A 1.2 m by 2.4 m window has an R-factor of 2m2 ∙ K/W. If the average outside and inside temperatures are -20°C and 22°C, respectively, how much heat is lost in one day? Estimate how much energy would be lost if there were 20 such windows in a house.

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