本题目来源于试卷: Physics Unit9: Static Equilibrium, Elasticity and Fracture，类别为 国际高中通用物理
[单选题]
An aluminum wire 2.0b(pkm0yw :5;fz,uzl3hk 1e wx ng.3jew)cyxjdu ),h7wj 1sd, m in length and 2.0 mm in diameter supports a 10.0-kg mass. What is the stress in the wire? ()n.gu)d ,dwyh,e7sjx3jcw 1j The 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:
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