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Physics Unit26: Special Theory of Relativity (id: 515bb44a0)

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Post time 2024-1-14 16:03:04 | Show all posts |Read mode
本题目来源于试卷: Physics Unit26: Special Theory of Relativity,类别为 Generic Physics

[单选题]
An electron is traveling at.20yiy ia- 0fap g,yf7:hghl qu1x2ia 0.85c. What is its 4r. e-k.+d 2; cs-ww(wjqupkdcp bt3b mass? (The rest mass is $9.11 \times 10^{-31} \; kg$.)

A. $1.4 \times 10^{-29} \; kg$
B. $7.2 \times 10^{-30} \; kg$
C. $1.7 \times 10^{-30} \; kg$
D. $2.4 \times 10^{-30} \; kg$


参考答案:  C


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