本题目来源于试卷: Physics Unit14: Heat，类别为 通用国际物理
[单选题]
How much heat will flow in 1.0 hour ttts(0t0k;h x-d-lqnk hrough a 2.0 m x 2.0 m section of conmm.d wlrw-92 tcrete (mt d-lwrw2m.9 $k = 2.0 \times 10^{-4} \; kcal/s \cdot m \cdot ^{\circ}C$) 10 cm thick if the inside temperature is $21 \; ^{\circ}C$ and the outside temperature is $4 \; ^{\circ}C$?
A. $0.136 \; cal$
B. $136 \; cal$
C. $490 \; cal$
D. $490 \; kcal$
参考答案: D
本题详细解析:
暂无
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