On December 26, 2004, a great earthquake occurredoff the coast of Sumatra and triggered immense waves (tsunami) thatkilled more than 200,000 people. Satellites observing these waves fromspace measured 800 km from one wave crest to the next and a periodbetween waves of 1.0 hour. What was the speed of these waves in m>sand in km/h? Does your answer help you understand why the wavescaused such devastation?

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On December 26, 2004, a great earthquake occurred
off the coast of Sumatra and triggered immense waves (tsunami) that
killed more than 200,000 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
and in km/h? Does your answer help you understand why the waves
caused such devastation?

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