gc textbook chapter 13 temperature and kinetic theory (id: 4d1805713)

本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 通用国际物理

[问答题]
A uniform rectangular plate y1s)dv-4y; scgdea-o of length l and width w ey+ +1juz d3whhas coefficient of linear expan1+de wy3zj h+usion $\alpha$ Show that, if we neglect very small quantities, the change in area of the plate due to a temperature change $\Delta$T is $\Delta$A = 2$\alpha l w$$\Delta$T See Fig. 13–30.

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