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More Than 475 Free MCAT Questions with Detailed Answers!

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MCAT Question A Day - 1/3/14

What is the speed of a longitudinal sound wave in a steel rod if Young’s modulus for steel is 20 x 1010 N/m2, and the density of steel is 8 x 103 kg/m3?

A.  4.0 x 1028 m/s
B.  5.0 x 103 m/s
C.  25 x 106 m/s