Jawabanmu

Jawaban paling cerdas!
2014-03-26T18:29:53+07:00
Q=m.kalor jenis air.( t_{akhir} - t_{awal} )
   =2.4200.(50-0)
   =8400.50
   =420000 J = 420 kJ.
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2014-03-26T18:30:35+07:00