The speed of sound is given by v = (1.4 P/density)1/2 for the atmospheric gases on Earth. Near the surface of the Earth where the temperature is 20 Celsius (293 Kelvin), the speed of sound is 343 meters per second. The sound is determined by how fast the compression is carried through the air; it is reasoanble that the faster the particles move (the higher the temperature), the faster the information propagates. The higher the temperature, the faster sound travels. The lower the temperature, the slower sound travels.
In the atmosphere (in the troposhere), the temperature generally falls with altitude. However, this can change locally depending on whether it is night or day and other conditions (such as in Los Angeles). The temperature variation causes sound waves to refract (to bend) as they move through the atmosphere. This refraction affects our ability to hear distant events:
The speed of sound is given by v = (1.4 P/density)1/2 for the atmospheric gases on Earth. Near the surface of the Earth where the temperature is 20 Celsius (293 Kelvin), the speed of sound is 343 meters per second. The sound is determined by how fast the compression is carried through the air; it is reasoanble that the faster the particles move (the higher the temperature), the faster the information propagates. The higher the temperature, the faster sound travels. The lower the temperature, the slower sound travels.In the atmosphere (in the troposhere), the temperature generally falls with altitude. However, this can change locally depending on whether it is night or day and other conditions (such as in Los Angeles). The temperature variation causes sound waves to refract (to bend) as they move through the atmosphere. This refraction affects our ability to hear distant events:
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