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Because it depends on the temperature, humidity, pressure and density of the air.

These have often been known to change during the course of the day.

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11y ago

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What is the speed of sound on a standard day at mean sea level?

Forget the sea level. Think only of the temperature. Speed of sound depends on the temperature. At 20°C the speed of sound is c = 343 m/s.


How many hours would it take to drive 983 miles?

It depends on the average speed at which you travel and that, in turn, will depend on your mode of transport, your driving style, how often you stop and for how long. It will also depend on road conditions which include speed limits (and your attitude to them), weather, traffic, time of day, etc.


How many hours would 1332 miles take?

The time taken will depend on the speed at which the journey is undertaken.This, in turn, will depend on a number of factors:· the speed at which your vehicle can travel,· speed limits (and whether or not you obey them),· road conditions,· traffic· whether or not you make comfort stops, fuelling stops etc.At the end of the day, the number of hours it will take will be1,332/(your average speed in miles per hour)


What is the speed of sound at sea level on a standard day?

The speed of sound is normally calculated using the values of a "standard atmospheric day." A "standard atmospheric day" refers to a sea level pressure of 29.92 in-Hg (1013.2 mb) and a temperature of 15°C (59°F). At standard day values, the speed of sound is 761 mph. Other speeds, such as those presented below, use values other than those relating to a "standard atmospheric day." They are not incorrect, they are simply based on values other than a "standard atmospheric day."The speed of sound is 343 m/s or 1126.547 ft/s (768.095 mph) at a temperature of 20°C or 68°F.The speed of sound has nothing to do with the atmospheric pressure at sea level, but the temperature is very important.Scroll down to related links and read the short article "Speed of sound - temperature matters, not air pressure".The air pressure and the air density are proportional to each other at the same temperature.The speed of sound c depends on the temperature of air and not on the air pressure!The humidity of air has some negligible effect on the speed of sound. The air pressureand the density of air (air density) are proportional to each other at the same temperature.It applies always p / ρ = constant. rho is the density ρ and p is the sound pressure.Notice: The speed of sound is alike on a mountain top as well as at sea level with the same air temperature.Google is not correct (look at the following link):http://www.google.com/search?q=speed+of+sound+at+sea+levelHere is the answer of Google: "Speed of sound at sea level = 340.29 m/s".This is no good answer, because they forgot to tell us the temperature,and the atmospheric pressure "at sea level" has no sense.The speed of sound in air is determined by the air itself. It is not dependent upon the sound amplitude, frequency or wavelength.


Would a barking dog produce sound wave that travel faster during day or at night?

The speed of sound waves is dependent on the temperature of the medium they are traveling through. During the day, the temperature is typically warmer, which results in faster sound wave propagation compared to at night when temperatures are cooler. Therefore, a barking dog would produce sound waves that travel faster during the day than at night.


What is the relationship between shortwave radiation and time of day?

The relationship between the shortwave radiation and the time of the day is that both depend with the latitude.


How long does it take to drive 426 miles?

That depends upon how fast you can go (your average speed) which will largely depend upon what kinds of road you are intending to use and at what time of day you are going to make the trip.


What is the sound at sea level speed?

The speed of sound is normally calculated using the values of a "standard atmospheric day." A "standard atmospheric day" refers to a sea level pressure of 29.92 in-Hg (1013.2 mb) and a temperature of 15°C (59°F). At standard day values, the speed of sound is 761 mph. Other speeds, such as those presented below, use values other than those relating to a "standard atmospheric day." They are not incorrect, they are simply based on values other than a "standard atmospheric day."The speed of sound is 343 m/s or 1126.547 ft/s (768.095 mph) at a temperature of 20°C or 68°F.The speed of sound has nothing to do with the atmospheric pressure at sea level, but the temperature is very important.Scroll down to related links and read the short article "Speed of sound - temperature matters, not air pressure".The air pressure and the air density are proportional to each other at the same temperature.The speed of sound c depends on the temperature of air and not on the air pressure!The humidity of air has some negligible effect on the speed of sound. The air pressureand the density of air (air density) are proportional to each other at the same temperature.It applies always p / ρ = constant. rho is the density ρ and p is the sound pressure.Notice: The speed of sound is alike on a mountain top as well as at sea level with the same air temperature.Google is not correct (look at the following link):http://www.google.com/search?q=speed+of+sound+at+sea+levelHere is the answer of Google: "Speed of sound at sea level = 340.29 m/s".This is no good answer, because they forgot to tell us the temperature,and the atmospheric pressure "at sea level" has no sense.The speed of sound in air is determined by the air itself. It is not dependent upon the sound amplitude, frequency or wavelength.


How many cars sits unused and idle in Canada?

It would depend on what time of the day it was


How many commercials are there in a half an hour?

The answer will depend on in what country, in what channel and also at what time of the day.


How long is day time during June 21 2016?

The answer will depend on the latitude. In the southern hemisphere, for example, it will be the shortest day.


How fast is mach 2.2 in mph?

Mach 2.2 refers to 2.2 times the speed of sound. The speed of sound is variable, depending on pressure and temperature. The speed of sound on a standard day at sea level is approximately 762 miles per hour. Mach 2.2 on a standard day at sea level would be approximately 1676.4 miles per hour, or 27.94 miles per minute, or approximately half a mile per second.