本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field,类别为 通用国际物理
[单选题]
A 5.0-mC charge is plhfehyk6*,) 2vlwj 70,xt, sly5ujx7g xbe ux9aced at the 0 cm mark of a meter stick and a -4.0 mC cha,qijz 8); wqodml-tbb/*g/at co8n* w rge is placed at the 50 cm mark. What is the electric c*tnbo/zqdq g/j*w8-miaw8 obt;l,) field at the 30 cm mark?
A. $4.0 \times 10^{5} \; N/C$
B. $5.0 \times 10^{5} \; N/C$
C. $9.0 \times 10^{5} \; N/C$
D. $1.4 \times 10^{6} \; N/C$
参考答案: D
本题详细解析:
暂无
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