(Solution) - At a fabrication plant a hot metal forging has a -(2025 Original AI-Free Solution)

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At a fabrication plant, a hot metal forging has a mass of 75 kg and a specific heat capacity of 430 J/(kg · C°). To harden it, the forging is immersed in 710 kg of oil that has a temperature of 32°C and a specific heat capacity of 2700 J/(kg · C°). The final temperature of the oil and forging at thermal equilibrium is 47 °C. Assuming that heat flows only between the forging and the oil, determine the initial temperature of the forging.