本题目来源于试卷: Physics Unit26: Special Theory of Relativity,类别为 Generic Physics
[单选题]
A boat can travel 4.0 mkeurj2y:0xf6)f hi4m/s in still water. With what spnbn4g2 -ngfhumxuyf:v4 :+ 9b eed, relative to the shore, does it move in a river that yu h n:nbgnx4mg-fv4b :uf9 2+is flowing at 1.0 m/s if the boat is heading straight across the river?
A. 3.0 m/s
B. 4.1 m/s
C. 4.8 m/s
D. 5.0 m/s
参考答案: B
本题详细解析:
暂无
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