October 2018 1 38 Report
Empat kilogram besi di panaskan hingga mencapai suhu 70°C , ternyata kalor yang di perlukan sebesar 92000 joule . jika kalor jenis besi 460 J/kg°C maka suhu awal besi adalah ......
mohon dibantu yg udh bantu makasih y......

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