October 2018 1 440 Report
Seorang pandai besi memanaskan 500 g besi bersuhu 20 derajat C hingga mencapai suhu 160 drajat C kemudian menempanya. Apabila kalor yang diperlukan sebanyak 32,200 J, Kalor jenis besi ....... J/Kg drajat C
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