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kkk
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Hello. Just wondering how to calculate the sound speed in the atmosphere if I have temperature and pressure from the surface and all the way up to thermosphere?
kkk said:Hello. Just wondering how to calculate the sound speed in the atmosphere if I have temperature and pressure from the surface and all the way up to thermosphere?
The speed of sound in the atmosphere is calculated using the formula c = √(γRT), where c is the speed of sound, γ is the adiabatic index, R is the gas constant, and T is the temperature in Kelvin.
The adiabatic index, also known as the ratio of specific heats, is used to account for the compressibility of air. It is a measure of how much the temperature of air changes when it is compressed or expanded.
Yes, the speed of sound in the atmosphere decreases with increasing altitude. This is because the air becomes less dense at higher altitudes, making it easier for sound waves to travel through. Additionally, the temperature also decreases with altitude, which affects the speed of sound.
Temperature has a direct effect on the speed of sound in the atmosphere. As temperature increases, the speed of sound also increases, and vice versa. This is because sound waves travel faster through warmer air, which has molecules that move more quickly than in colder air.
Yes, besides temperature and altitude, the speed of sound in the atmosphere can also be affected by humidity and air pressure. Higher humidity can slow down the speed of sound, while lower air pressure can increase it. However, these effects are relatively small compared to the primary factors of temperature and altitude.