Resposta :
Temos que:
15 minutos * 15 calorias = Q
Q = 225 calorias
Q = m*c*/\T
225 = 50 * c * (50 - 20)
225/50 = 30c
4,5 / 30 = c
***********************
c = 0,15 cal/g*°C
***********************
15 minutos * 15 calorias = Q
Q = 225 calorias
Q = m*c*/\T
225 = 50 * c * (50 - 20)
225/50 = 30c
4,5 / 30 = c
***********************
c = 0,15 cal/g*°C
***********************