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 -(5k m 3ytz w9muwxv7clat2;c66qhac m in length and 2.0 mm in diameter supp .ukn er1*y a7j*)raeports a 10.0-kg mass. What is the stress in the wire? (The Young's modulus for alen) ra.kupa7j*re *y1uminum 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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