# How many miles per hour does the speed of sound travel?

## Answer

The speed of sound varies depending on the type of medium through which it moves, explains Livescience. When traveling through Earth's atmosphere at sea level, and with a constant air temperature of 59 degrees Fahrenheit, sound travels at just over 761 miles per hour.

Sound is a disturbance that travels through the medium of the atmosphere. The atmosphere is made of a mix of gases whose molecules move more slowly at colder temperatures, reducing the speed of the sound waves that travel through them. The speed of sound is also reduced in environments with lower atmospheric pressure, explains a NASA website.

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Q&A Related to "How many miles per hour does the speed of sound..."
 767.27 miles per hour. http://wiki.answers.com/Q/What_is_the_speed_of_sou...
 The speed of sound is the rate of travel of a sound wave. In dry air at 20 degrees C/68 degrees F, the speed of sound is 343 meters/1,123 feet per second. http://www.ask.com/web-answers/Science/Other/what_...
 The speed of sound depends on air density. At sea level, 70F, sound travels at an astounding 769.04 mph. http://www.kgbanswers.com/what-is-the-speed-of-sou...
 The speed of sound (mach 1) is equal to 761.2 mph, or 1,225.1 km/h. http://www.chacha.com/question/what-is-the-speed-o...
1 Additional Answer
Ask.com Answer for: what is the speed of sound in mph
The speed of sound varies depending on the temperature, pressure, and density of the medium through which the sound waves travel. For dry air at sea level at 68° F, the speed of sound is 767 miles per hour, or 1235 km/h
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