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alice122

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Joined: 17:20 Mon 14th Apr 2014

Last Activity: 20:00 Mon 14th Apr 2014

Gender: Female

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alice122

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A ship uses sonar to measure the depth of the seabed. The signals take 20s to return to the measuring device. Calculate the depth of the sea if the speed of sound in seawater is 1500 metres/second to...

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