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OpenStudy (anonymous):

The use of sound waves helps scientists find out how deep parts of the ocean are. The scientists do this by sending a sound wave to the floor of the ocean and recording the time it takes to return to a machine. What did the inventor of this machine need to know while developing the machine?

OpenStudy (anonymous):

sorry guys... I'm new to all of this!

OpenStudy (anonymous):

PLEASE HELP!!!

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