Jawabanmu

2014-04-15T20:22:10+07:00
  • Taqi
  • Gemar Membantu
2014-04-15T20:27:19+07:00
4 x 2100 x 20 = 168000 J
4 x 366000 = 1464000 J
4 x 4200 x 30 = 504000 J

168 kJ + 1464 kJ + 504 kJ = 2136 kJ
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