gc textbook chater 14 heat (id: 84c6c2362)

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

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The 1.20-kg head of a hammer hasb0 -q;qs()qfaw xcw4 t,ahe8z a speewsydeyydf 5 w2 )eyn+2x(u1: n(bm 6ocd of $6.5\,m/s$ just before it strikes a nail (Fig. 14–17) and is brought to rest. Estimate the temperature rise of a 14-g iron nail generated by 10 such hammer blows done in quick succession. Assume the nail absorbs all the energy.    $C^{\circ} $

参考答案: 40.24±2%


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