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More Than 475 Free MCAT Questions with Detailed Answers!

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MCAT Question A Day - 9/14/13

A man drops a metal probe down a deep well-drilling shaft that is 3920 meters deep. If the temperature is 25°C, which is the closest estimate of how long it takes to hear the echo after the probe is dropped?

A.  5.0 s
B.  10 s
C.  20 s