Respostas

2014-08-08T13:45:44-03:00
Q=mcΔt
Q=200.1.(60-20)
Q=200.40
Q=8000 cal
2014-08-08T15:53:35-03:00
Q = m * c * (t2 - t1)
Q = 200 * 1 * (60 - 20)
Q = 200 * 40
Q = 8000 calorias