A concrete slab is 97 cm thick and has an area of 46 m2, Ask an Expert

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A concrete slab is 9.7 cm thick and has an area of 4.6 m^2. Electric heating coils are installed under the slab to melt the ice on the surface in the winter months. What minimum power must be supplied to the coils to maintain a temperature difference of 17.3 Degrees C between the bottom of the slab and its surface? Assume all the energy lost is through the slab.

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