Question a 400-g piece of metal at 120degc is dropped into, Ask an Expert

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Question: A 400-g piece of metal at 120°C is dropped into a cup containing 450 g of water at 15.0°C. The final temperature of the system is 40.0°C.

A- What is the specific heat of the metal, assuming no heat is exchanged with the surroundings or the cup?

Please clarify the equations and steps are used to get the answer. Thanks!

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