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A thin piece of metal foil is 1.328 ft. long and 5.55 inches wide. The density of the metal is 8.638 g/cm3 and the specific heat of the metal is 0.378 J/g C. If the metal foil absorbs 809.2 J of heat as its temperature changes from 21.20 C to 33.79 C, calculate the thickness of the metal foil in mm.

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