Physics Unit17: Electric Potential (id: 311ba2ed6)

本题目来源于试卷: Physics Unit17: Electric Potential，类别为 国际高中通用物理

[单选题]
How much energy is necessary to pf22mt1k wp+axn 7wkb.lace thr5laq9x4ppx r4pyx+6x ee charges, each of 2.0 mC, at the corners of an equilateral triangle of side 2.0 cmpra6+y xl5qxx9 4p4xp?

A. $4.5 \; J$
B. $5.4 \; J$
C. $6.7 \; J$
D. $7.6 \; J$


参考答案:  B


本题详细解析: 暂无

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