0
C = F1/F2
F1 - higher - frequency before vehicle pass (Hz)
F2 - lower - frequency after vehicle pass* (Hz)
V = - V0 * ( (1 - C) / (1 + C) )
-------------------------------------
V - speed of vehicle (m/s)
V0 - speed of sound in air (m/s) ~= 343 m/s
Valid only if vehicle speed is lower than the speed of sound :)
* Measurement must be done in position very close to where vehicle passes by.
Otherwise things become more complex.
What else can I help you with?
When calcualting the speed of sound do you multiply or divide the distance by the frequency?
When calculating the speed of sound do you multiply or divide the distance by the frequency? If you mean the formula for the speed of sound c then the wavelength lamda is multiplied by the frequency f. c = lambda x f f = c / lambda lambda = c / f
Does the speed of sound independent of frequency?
No, the speed of sound is not independent of frequency. In general, the speed of sound increases with increasing frequency. This relationship is due to the way sound waves travel through a medium, such as air or water.
Does sound velocity change based upon sound frequency?
No, sound velocity does not change based on sound frequency in a uniform medium. In a medium with a constant temperature and pressure, the speed of sound remains constant regardless of the frequency of the sound waves.
How does the frequency of a sound wave affect the speed at which the sound wave moves?
The frequency of a sound wave does not affect the speed at which the wave moves. The speed of sound in a medium is determined by the properties of that medium, such as its density and elasticity. However, frequency does impact the pitch of the sound we hear.
What two variables are needed to calculate the speed of sound?
Distance-wavelength lambda (λ) is measured in meters (m)Time- frequency is measured in Hertz (Hz)
What is the wavelength of sound that has a frequency of 539.8?
The wavelength of sound can be calculated using the formula: wavelength = speed of sound / frequency. Assuming the speed of sound is around 343 m/s, we can calculate the wavelength of sound with a frequency of 539.8 Hz to be approximately 0.636 meters.
What is the period of a sound wave whose wave length is 20.0 m?
You solve this as follows: 1) Decide on a number for the speed of sound. Note that the speed of sound in air is quite different to the speed of sound in water, for example. Convert this speed to meters/second, if it isn't already in meters/second. 2) Divide the speed by the wavelength, to get the frequency. 3) The period is simply the reciprocal of the frequency.
A sound wave has a wavelength of 20 meters find its frequency?
To find the frequency of the sound wave, you need to know the speed of the wave. If the speed of sound is about 343 meters per second in air at room temperature, you can calculate the frequency using the formula: Frequency = Speed of sound / Wavelength. So, Frequency = 343 m/s / 20 m = 17.15 Hz.
A fly buzzes past you at 6m s the frequency of the buzz made by its wings at 162hz assume the speed of sound to be 334 m s what is the observed frequency of the hum as the bumblebee approches you?
As the fly approaches you, the observed frequency of the hum will increase. This is due to the Doppler effect, where the frequency is higher when the source of the sound is moving towards the observer. To calculate the observed frequency, you can use the formula: observed frequency = original frequency x (speed of sound + speed of fly) / (speed of sound).
The speed of sound is approximately 340 ms If a sound wave has a wavelength of 0.68 meters the frequency will be approximately?
No, the speed of sound may be 340 meters per second.The frequency is speed of sound divided by wavelength.So your frequency f = 340 / 0.68 = 500 Hz.
When calcualting the speed of sound do you multiply or divide the distance by the frequency?
When calculating the speed of sound do you multiply or divide the distance by the frequency? If you mean the formula for the speed of sound c then the wavelength lamda is multiplied by the frequency f. c = lambda x f f = c / lambda lambda = c / f
Is the speed of sound independent of frequency?
Yes, the speed of sound is independent of frequency in a uniform medium.
How do you calculate a wave's frequency?
You can calculate a wave's frequency by dividing the speed of the wave by its wavelength. The formula is: frequency = speed of wave / wavelength.
Does the speed of sound independent of frequency?
No, the speed of sound is not independent of frequency. In general, the speed of sound increases with increasing frequency. This relationship is due to the way sound waves travel through a medium, such as air or water.
What is the frequency of a sound wave moving in air at room temperature if the wavelength is 0.686meters?
The speed of sound in air at room temperature is approximately 343 m/s. Using the formula speed = frequency x wavelength, we can calculate the frequency as speed divided by wavelength, which equals 343 / 0.686 ≈ 500 Hz.
Is the speed of sound dependent on frequency?
No, the speed of sound is not dependent on frequency. It is determined by the medium through which the sound waves travel.
What is formula for the frequency of sound?
The formula for the frequency of sound is: frequency = speed of sound / wavelength. The speed of sound in air is approximately 343 meters per second at room temperature.
