Physics
posted by Sierra .
Use the exact values you enter in previous answer(s) to make later calculation(s).
Energyefficient windows are constructed with two panes of glass separated by an air gap (see figure below). In a typical window of this type, the air gap makes a huge difference in the rate of heat flow. The heatflow rate is much smaller for an energyefficient window than for a single pane of glass because the thermal conductivity of the air gap is much less than that of a glass pane.
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