Physics Unit16: Electric Charge and Electric Field (id: 2ace3763a)

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]
An electron is held up agai8n)zono *n8(u-t; j phqjcep7ns z7k1 +1rwyzm6u(y lbut the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron is the prmzly71k +1u 6rzb(uwyoton?

A. $1.5 \; m$
B. $2.3 \; m$
C. $3.7 \; m$
D. $5.1 \; m$


参考答案:  D


本题详细解析: 暂无

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