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June 30, 2015

Homework Help: physics

Posted by RC on Saturday, April 28, 2012 at 11:26pm.

At a fabrication plant, a hot metal forging has a mass of 66.8 kg and a specific heat capacity of 437 J/(kg C). To harden it, the forging is quenched by immersion in 785 kg of oil that has a temperature of 25.0 C and a specific heat capacity of 2770 J/(kg C). The final temperature of the oil and forging at thermal equilibrium is 61.7 C. Assuming that heat flows only between the forging and the oil, determine the initial temperature in degrees Celsius of the forging.

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