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A 100-g aluminum calorimeter contains 250-g of water. Twosubstances are in thermal equilibrium at 10 degrees celcius. Twometalic blocks are placed in the water. One is a 50-g piece ofcopper at a temperature of 80 degrees celcius. The other sample hasa mass of 70-g and is originally at a temperature of 100 degreescelcius. The entire system stabilizes at a final temperature of 20gegrees celcius. Determine the specific heat of the unknown sample.

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