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 placed at the 0 cm mark/ df,whckq*r8.3 xuzy of a meter stick and a -4.0 mC c;fqjgmd2vmtjz0h 66 i7g z7)yharge is placed at the 50 cm mark. What is the electric fie 2 z06fiv6;mjzjg7d7hm)t gyqld 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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