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 air sp42 *sx7nha:bq2q 6 4 qwrwwgjq1x cjk +d s0zp2(1dl7jxj8hk jeed 120 km/h is heading due north in a wind blowing due east at 50 km/h. What is the ground 1pz(8k7j+2 jcj1 sk0 xh jxlddspeed 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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