Jawabanmu

2014-03-03T21:56:31+07:00
M = 0,5 kg
Δt = 100
c = 4200
Q = m.c.Δt
    = 0,5 . 4200. 100
    = 210.000 J
2014-03-03T22:38:30+07:00
Q=m.c.delta t =0,5kg*4200j/kg C*100 C =2.100*100 =210.000J