Respostas

2014-05-24T20:38:06-03:00
Q = m * c * /\t
Q = 70 * 0,5 * (0 - (-20)
Q = 35 * 20
Q = 700 cal

Q = m *L
Q = 70 * 80
Q = 5600

QTotal = 5600 + 700
QTotal = 6.300cal = 6,3kcal
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