Jawabanmu

2014-05-01T13:09:49+07:00
Q = m.c.delta = 
18000 = m . 50 . 120 
18000 ; 6000 = 3 kg 
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Jawaban paling cerdas!
2014-05-01T14:48:07+07:00
M=Q/cxdeltaT =18.000/120x50 =18.000/6.000 =3kg.
2 4 2