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]
Three point charges are pl 4q(j+lanlq ;aacnmq,cm5/jlvs-4 uus+ed on the x-axis. A charge of +2.0 mC is placed at the origin, -2.0 m C to the right at x = 50 cm, and +4.0 mC at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts onq-mu +ss,5cum4n/v lj the charge at the origin?
A. 0.072 N right
B. 0.072 N left
C. 0.14 N right
D. 0.14 N left
参考答案: A
本题详细解析:
暂无
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