Jawabanmu

2014-04-28T19:01:30+07:00
Dik : m = 2 kg ;     c = 4200J/kg ;     ΔT = 50 c
dit : Q = ?
jwb : Q = m x c x ΔT = 2 x 4200 x 50 = 420000 J
2014-04-28T19:12:24+07:00