本题目来源于试卷: Physics Unit5: Circular Motion & Gravitation，类别为 国际高中通用物理
[单选题]
The hydrogen atom consist7tc 6.9s xagitptf op)):.p.;5xafqy ( 4thot0raa rts of a proton of mass $1.67 \times 10^{-27} \; kg$ and an orbiting electron of mass $9.11 \times 10^{-31} \; kg$. In one of its orbits, the electron is $5.3 \times 10^{-11} \; m$ from the proton. What is the mutual attractive force between the electron and proton?
A. $1.8 \times 10^{-47} \; N$
B. $3.6 \times 10^{-47} \; N$
C. $5.4 \times 10^{-47} \; N$
D. $7.0 \times 10^{-47} \; N$
参考答案: B
本题详细解析:
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