A 405-g sample of lead with specific heat cpb = 128 J/(kg · °C) at 91.0°C and a 220-g sample of silver with Cag = 230.0 J/(kg · °C) at 36.0°C are added to 0.500 kg of water at 22.0°C where Cw = 4190 J/(kg °C) in an insulated container. Assuming the system is thermally isolated, what is its final equilibrium temperature? %3D

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