gc textbook chapter 11 Vibrations and Waves (id: ad042f41e)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

[填空题]
A tsunami of wavelength 250 km and velocity 750 km/h travels across msqy+b (q5t7i4nr isu0p2xv +the Pal;wuh1 tmr axcltkii916b+;6 cific Ocean. As it approaches Hawaii, people observe an unusual decrease of sea level in the harbors. Approximately how much time do they have to run to sa;h1k ia;+6tul1ibr9 cl w6mxtfety? (In the absence of knowledge and warning, people have died during tsunamis, some of them attracted to the shore to see stranded fishes and boats.)    min

参考答案: 10±2%


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