gc textbook chater 14 heat (id: 3599cec3f)

本题目来源于试卷: gc textbook chater 14 heat，类别为 IB物理学

[填空题]
A 2.3-kg lead ball is drni g4jcsc o+b/g,wmzd(08k * iopped into a 2.5incmv/xz;)6ew1 z*ii -L insulated pail of water initially at 1ev i iz;6*imxzn/)wc20.0$^{\circ} C$. If the final temperature of the water–lead combination is 28.0$^{\circ} C$, what was the initial temperature of the lead ball?    $^{\circ}C $

参考答案: 308±2%


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