Jawabanmu

2014-06-01T08:27:08+07:00
Q1 = 5.4200.100 = 2.100.000
Q2 = 5.2,3 x 10^6 = 11.500.000
Q1+Q2 = 13.600.000 J
1 5 1
2014-06-01T08:28:46+07:00
2,3 x 10⁶J/kg  =2300000J/kg

Q =m x u
Q = 5 kg x 2300000J/kg =11500000 J =11500 kJ