?MasteringPhysics: Chapters 12-13 Homework (Thermal/ Fluids-Google Chrome a Secu

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?MasteringPhysics: Chapters 12-13 Homework (Thermal/ Fluids-Google Chrome a Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemID-90467703 Chapters 12-13 Homework (Thermal /Fluids) Problem 12.48 Constants PartA A copper block is removed from a 310 °Coven and dropped into 1.00 kg of water at 26.0 °C. The water quickly reaches 31.5 C and then remains at that temperature What is the mass of the copper block? The specific heats of copper and water are 385 J/(kg Express your answer to three significant figures and include the appropriate units. K) and 4190 J/(kg K) respectively. m 349 Submit Incorrect; Try Again; 25 attempts remaining Provide Feedback Next > 6:43 PM 12/2018 O Type here to search ^???

Explanation / Answer

from principle of calorimetry

heat lost by hot body = heat gained by cold body

heat lost by copper = heat gained by water

M_copper*(T_copper - Tf) = M_water*S_water*(Tf - T_water)

m*385*(310-31.5) = 1*4190*(31.5-26)

m = 0.215 kg <<<------------ANSWER

DONE please check the answer. any doubts post in comment box

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