A piece of copper mass \(200 g\) is heated to \(1000 C\) and is then quickly transferred to a copper calorimeter of mass \(10 g\), containing \(100 g\) of water whose initial temperature is \(150< C >\) If the specific heat capacity of copper and water are \(400 J / kg . K\) and \(42003 / kg . K\), find the final temperature of the substance.

A. \(29.10 C\)
B. \(30.10 C \quad\)  
C. \(28.40 C\)
D. \(27.40 C\)

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Correct Answer: B