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     EduGorilla 
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    An ice box made of styrofoam (thermal conductivity = 0.01 Jm-1s-1K-1) is used to keep liquids cool. It has a total wall area, including the lid, of 0.8 m2 and wall thickness of 2.0 cm. A bottle of water is placed in the box, filled with ice. If the outside temperature is 30oC, then the rate of flow of heat into the box is (in J-s-1)

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