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Tsunami! On December 26, 2004, a great earthquake occurred
Chapter 15, Problem 3E(choose chapter or problem)
Tsunami! On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves (tsunami) that killed some 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?
Questions & Answers
QUESTION:
Tsunami! On December 26, 2004, a great earthquake occurred off the coast of Sumatra and triggered immense waves (tsunami) that killed some 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?
ANSWER:Solution to 3E Step 1 Distance from one crest to other = Wavelength of the longitudinal wave =800 km =8x10 m 5 Time =1hr=60s -3 Frequency of the wave=(1/T) =(1/60)=16.6x10 Hz