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# Finding the Speed, Frequency and Period of Tsunami Waves

Tsunamis are fast-moving waves generated by underwater earthquakes. In the deep ocean their amplitude is barely noticeable, but upon reaching shore, they can rise up to the astonishing height of a six-story building. One tsunami, generated off the Aleutian islands in Alaska, had a wave length of 650 km and traveled a distance of 3700 km in 5.6 h.

(a) What was the speed (in m/s) of the wave? For reference, the speed of a 747 jetliner is about 250 m/s.

(b) Find the wave's frequency.

(c) Find the wave's period.

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#### Solution Summary

This solution shows how to find the speed, frequency and period of a Tsunami wave of a given length. It is also included as an attached Word document.

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