本题目来源于试卷: Physics Unit9: Static Equilibrium, Elasticity and Fracture，类别为 通用国际物理
[单选题]
An aluminum wire 2.0 m in leng-z4gm8bz;v qqu nn90 eth and 2.0 mm in diameter supports a 10.0-k p/c52gr x/m v),ezhy ra*xr*;nkl)2q:lfdu ng mass. What is the stress in the wire? (Thnrv*)cr2pln yh )mkx*au r d25z/,/;fq gexl:e Young's modulus for aluminum is $7.0 \times 10^{10} \; N/m^2$)
A. $3.1 \times 10^{7} \; N/m^{2}$
B. $6.2 \times 10^{7} \; N/m^{2}$
C. $9.3 \times 10^{7} \; N/m^{2}$
D. $1.2 \times 10^{8} \; N/m^{2}$
参考答案: A
本题详细解析:
暂无
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