[قلوب ستار]

المسألة الثانية
2-Determine the heat capacity (in calorise /c) of a lake contaning one million gallons (apprximately 4 million kilogranms) of water at 15c:
*-4×10^6
*-14×16^9
*-4×10^3
*-1×10^3
*-4×10^2