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]
99.06: An airplane with f,fnda (7z+xq air speed 120 km/h is hkn b: z*y4s7f(t ji,qeeading due north in a wind blowing due east at 50 km/h. What is the ground speed 7n*:izje4ky,q(t bf s of the plane?

A. 60 km/h
B. 120 km/h
C. 130 km/h
D. 140 km/h
E. None of these


参考答案:  C


本题详细解析: 暂无

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