MCAT Question A Day - 9/15/13 - Answer!
At 0°C, approximately how long does it take sound to travel 5.00 km?
A. 15 s
B. 30 s
C. 45 s
D. 60 s
The correct answer is (A). At 0°C the speed of sound in air is 330 m/s; therefore, it takes:
(5.00 * 103 m)/(330 m/s) ~ 15 s
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