An earthquake on the ocean floor in the Gulf of Alaska induces a tsunami (sometimes called a “tidal wave”) that reaches Hilo, Hawaii, 4780 k

Question

An earthquake on the ocean floor in the Gulf of Alaska induces a tsunami (sometimes called a “tidal wave”) that reaches Hilo, Hawaii, 4780 km away, after a time of 9.99 h. Tsunami’s have enormous wavelengths (100- 200 km), and for such waves the propagation speed is v ≈ qgd , where d is the average depth of the water, d is in meters, v is in m/s, and g = 9.8 m/s^2 . From the information given, find the average ocean depth between Alaska and Hawaii.

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Cherry 6 months 2021-07-15T02:28:20+00:00 1 Answers 8 views 0

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    2021-07-15T02:29:29+00:00

    Answer:

    23785m

    Explanation:

    V= 4780/9.9= 482.8km/h

    d= v²/g = 482.8²/9.8= 23785m

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