October 2018 1 86 Report
Ke dalam bak mandi dicampurkan 150 kg air panas bersuhu 90 derajat celcius dengan air dingin bersuhu 10 derajat celcius sehingga menjadi air hangat bersuhu 40 derajat celcius. Hitung massa air dingin yang dicampurkan! (kalor jenis air = 4.200 joule/kg derajat celcius
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