A scientist is using sonar to map the ocean floor while traveling on the ocean surface in a ship. She observes that the first sound pulse returns from the ocean floor much more quickly than the second

A scientist is using sonar to map the ocean floor while traveling on the ocean surface in a ship. She observes that the first sound pulse returns from the ocean floor much more quickly than the second sound pulse. What can she conclude based on this information?

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A scientist is using sonar to map the ocean floor while traveling on the ocean surface in a ship. She observes that the first sound pulse returns from the ocean floor much more …

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