Scientific Skills & Tools (id: cb0baf00b)

本题目来源于试卷: Scientific Skills & Tools，类别为 IB物理学

[单选题]
Which of the following is an estimate of the order of magnitude of the radius of the Earth?

A. $10^7m$
B. $10^{11}m$
C. $10^{15}m$
D. $19^{22}m$


参考答案:  A


本题详细解析:
The radius of the earth is approximately 10 000 $km$, which is $10^7 \,m$. All other values are significantly different from this value.

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