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Submarines sometimes make a "pinging" sound to determine the depth of an object in the ocean. This process is called A. sonar. B. radar. C. refraction. D. diffraction.
Submarines sometimes make a "pinging" sound to determine the depth of an object in the ocean. This process is called SONAR.
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Asked 4/26/2012 3:45:59 PM
Updated 5/24/2014 1:10:35 PM
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Submarines sometimes make a "pinging" sound to determine the depth of an object in the ocean. This process is called SONAR.

Added 5/24/2014 1:10:35 PM
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