Jawabanmu

2014-04-13T10:14:35+07:00
Q                 =  m.c. Δt
23.040 J     =  1,5.c.120 derajat
23.040 j     =180
c                 =23.040 j  
                     ----------
                        180
c                  =128j/kg



2014-04-13T10:49:20+07:00
Dik : Q = 23.040 joule : m = 1,5 kg : delta t = 120 derajat dit : c.....? jawab : Q = m.C.delta t 23.040 j = 1,5 kg * C * 120 derajat 23.040 j = 180 * C C = 23.040 / 180 C = 128 j/kg