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A blacksmith forging a 945.0-g knife blade drops the steel blade, initially at 725.0C, into a water trough containing 44.0 kg of water at 21.5C.

A blacksmith forging a 945.0-g knife blade drops the steel blade, initially at 725.0C, into a water trough containing 44.0 kg of water at 21.5C. Assuming none of the water boils away or is lost from the trough and no energy is lost to the surrounding air, what is the final temperature of the water-knife blade system? Assume

csteel = 450 J/(kg C).

C

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