Why does sound travel slower in cold air?
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Solution 21E Generally the speed of sound is greater in hot air than it is in cold air.because the molecules of air moving faster and vibrations of sound wave,therefore be transmitted faster.it means sound waves travel from hot air to cold air or from cold air to hot air will refract. Or The speed of sound is inversely proportional to square root of the density of the medium and directly proportional to square root of the stiffness of the medium. C = sqrt(K/p) Where c = speed of sound k = stiffness p = density of medium In warm air,the density of molecules is lower hence speed increases.in cold air,the density of molecule is higher and speed decreases.
Textbook: Conceptual Physics
Author: Paul G. Hewitt
The answer to “Why does sound travel slower in cold air?” is broken down into a number of easy to follow steps, and 8 words. This full solution covers the following key subjects: air, Cold, slower, Sound, Travel. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. The full step-by-step solution to problem: 21E from chapter: 20 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. Since the solution to 21E from 20 chapter was answered, more than 361 students have viewed the full step-by-step answer.