In 2004 a massive 10-30m high tsunami was created in the eastern Indian Ocean by an earthquake in Sumatra resulting in the loss of hundreds of thousands of lives. The coast of Africa lies 7000km to the west of Sumatra. Knowing that tsunami’s propagate at a speed v = √gH, how long did it take for the tsunami to strike Africa?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter7: Gravity
Section: Chapter Questions
Problem 1PQ: We use the terms sunset and sunrise. In what way are these terms misleading?
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In 2004 a massive 10-30m high tsunami was created in the eastern Indian Ocean by an
earthquake in Sumatra resulting in the loss of hundreds of thousands of lives. The coast of Africa lies
7000km to the west of Sumatra. Knowing that tsunami’s propagate at a speed v = √gH, how long
did it take for the tsunami to strike Africa?

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