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 IB物理学

[填空题]
A tsunami of wavelength 250 c2/ba x sc4sa )a.ich,svzw;; km and velocity 750 km/h travtyj; op2(f;8i2bhugw els across the Pacific 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 safety? (In the absence of knowj;o(iw bf p2t; 82ghyuledge 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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