Physics Bowl by Topic 1: Unit, Prefix, Significant Figures, Estimation & History

本题目来源于试卷: Physics Bowl by Topic 1: Unit, Prefix, Significant Figures, Estimation & History，类别为 美国物理杯赛(Physics Bowl)

[单选题]
06.01: The mass of an object is recorded asc(*3g wtzk80e jlnk,b rym/3d i6dfb9hw u33qwt /v m.di l0i:$m = 2.10 \times 10^4 \; kg$. This mass has been recorded with how many significant digits?

A. 2
B. 3
C. 4
D. 5
E. 6


参考答案:  B


本题详细解析: 暂无

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