A copper beaker of mass 020 kg contains 010 kg of water at


A copper beaker of mass 0.20 kg contains 0.10 kg of water at 20.0 C. A block of silver of mass 100 g at 90.0 C is added to the beaker of water. The entire system is thermally insulated from the surroundings. (specic heats- copper: 390 J/kg K, silver: 234 J/kg K, water: 4190 J/kg K)

(a) What is the nal temperature of the system?

(b) What is the heat lost by the silver?

(c) What is the heat gained by the water? What is the heat gain of the copper?

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Physics: A copper beaker of mass 020 kg contains 010 kg of water at
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