I need part C pleas !!! On December 26, 2004, a great earthquake occurred off th

Question

I need part C pleas !!!

On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves (tsunami) that killed some 200000 people. Satellites observing these waves from space measured 800 km from one wave crest to the next and a period between waves of 1.0 hour. What was the speed of these waves in m/s? Express your answer using two significant figures. What was the speed of these waves in km/h? Express your answer using two significant figures. How does your answer help you understand why the waves caused such devastation? Essay answers are limited to about 500 words (3800 characters maximum, including spaces).

Explanation / Answer

Part C:

Tsunami waves have long wave length in deep sea. As wavelength inversly proprtion to speed (wave height), middle of the sea you will not observe much change. But as the waves approach shores, dure to shallow depth wavelength decreases, which increase wave height and the speed. So the wave becomes much more stronger and causes much devastation.

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