本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 国际高中通用物理
[单选题]
A 5.0-mC charge is place6 (rv.x8k6naoxrp8 zc nv,w;ld at the 0 cm mark o7, 3lcatcfz92*huu: xlxh.: q o gglby u3.pc0f a meter stick and a -4.0 mC charge is placed at the 50 cm mark. What is the electric field aafl3y :h 7q9c:u.0.pg3cch x 2olxub z l,*tugt 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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