Tsunamis are fast-moving waves generated by underwaterearthquakes. In the deep o

Question

Tsunamis are fast-moving waves generated by underwaterearthquakes. In the deep ocean their amplitude is barelynoticeable, but upon reaching shore, they can rise up to theastonishing height of a six-story building. One tsunami, generatedoff the Aleutian islands in Alaska, had a wavelength of800 km and traveled a distance of 3700 kmin 5.0 h. a) What was the speed (in m/s) of the wave? Forreference, the speed of a 747 jetliner is about 250m/s.
       I got this answer and it is 205.66m/s. However, on the next 2 parts I cannot seem to get the correctanswers. b) Find the wave's frequency.
   ____________Hz (c) Find the wave'speriod.
__________s Thanks for looking at this problem. Tsunamis are fast-moving waves generated by underwaterearthquakes. In the deep ocean their amplitude is barelynoticeable, but upon reaching shore, they can rise up to theastonishing height of a six-story building. One tsunami, generatedoff the Aleutian islands in Alaska, had a wavelength of800 km and traveled a distance of 3700 kmin 5.0 h. a) What was the speed (in m/s) of the wave? Forreference, the speed of a 747 jetliner is about 250m/s.
       I got this answer and it is 205.66m/s. However, on the next 2 parts I cannot seem to get the correctanswers. b) Find the wave's frequency.
   ____________Hz (c) Find the wave'speriod.
__________s Thanks for looking at this problem.    ____________Hz (c) Find the wave'speriod.
__________s Thanks for looking at this problem.

Explanation / Answer

   wave velocity, v = 3700/5 = 740 km/h = 205.56 m/s     wavelength, = 800 km = 8 x 105m        frequency, f = v/ = 2.57 x 10-4Hz     Period = 1/f = 3891.9 s

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