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- d(y1tg dha--n)0fsx oql3sx m in length and 2.0 mm in diameter supports a 10.0-kl(k,qv t,pbjfi7 )+ar g mass. What is the stress in the wire? (The Young's modulus for aluli), 7 jvpq tb(r,ka+fminum 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
| 
