Jawabanmu

2014-04-13T19:45:03+07:00
Q = m.c . Δ T
Q = 2 . 4200 . 50
Q =  420000 J



2014-04-13T19:47:50+07:00

Q=M x C x ΔT

  =2 kg x 4200 x 50

  =8400 x 50

   =420000 J