Physics Unit9: Static Equilibrium, Elasticity and Fracture (id: b543b2a3e)

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]
A mass of 50 kg is suspended from a steel ythcv1e4yp:/wx:2tq x 72nt p wire of dk gy4 )wgf(r6y gyw3j;iameter 1.0 mm and length 11.yy)4rwf gg63(;wjyg k2 m. How much will the wire stretch? The Young's modulus for steel is $20\times {10}^{10}N/m^2$.

A. $1.5cm$
B. $2.5cm$
C. $3.5cm$
D. $4.5cm$


参考答案:  C


本题详细解析: 暂无

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