Orca whales make sounds so loud that hydrophones (a sound wave detecting microphone that is used underwater)
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Question:
Orca whales make sounds so loud that hydrophones (a sound wave detecting microphone that is used underwater) can pick them up from a great distance in seawater (the speed of sound in seawater is 1470 m/s) . Assume that an orca travelling at 55 km/h is approaching an observer using a hydrophone . How long after the sound is heard will the whale take to reach the observer from the initial distance of 8.0 km?
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Cost Accounting A Managerial Emphasis
ISBN: 978-0133138443
7th Canadian Edition
Authors: Srikant M. Datar, Madhav V. Rajan, Charles T. Horngren, Louis Beaubien, Chris Graham
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