Respostas

2013-07-09T18:51:50-03:00
Q1 + Q2 = 0

Q=m*c*/\t

1000 * 1 * (tf - 100) + 2000 * 0,6 * (tf - 10) = 0

1000tf - 100.000 + 1200*(tf - 10) = 0

1000tf - 100.000 + 1200tf - 12.000 = 0

2.200tf - 112.000 = 0

tf = 112.000/2200

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tf = 50,96 ~= 51°C
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