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]
Three point charges ar /x ;yveru+rs9b bav*e (,.n/lj ht7mle placed ly ie3a0/cp6con 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,a 3pel/y0 ci6c and +4.0 mC at the 100 cm mark. What are the magnitude and direction of the electrostatic force which acts on 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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