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A window in a wall consists of a single pane of glass whose area is .16 meters squared and whose thickness is 2.0 millimeters. Treat the wall as a slab of the insulating material Styrofoam whose area and thickness are 18 meters squared and .10 meters respectively.Heat is lost via conduction through the wall and the window. The temperature difference between the inside and the outside is the same for the wall and the window. Of the total heat lost by the wall and the window, what is the percentage lost by the window?

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