kprincess16r
12.03.2020 •
Physics
A sound wave has a frequency of 684 Hz in air and a wavelength of 0.53 m. What is the temperature of the air? Assume the velocity of sound at 0◦C is 327 m/s. Answer in units of ◦C.
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Ответ:
The temperature of air is 335.52 K or 62.52° C
Explanation:
First, we calculate the speed of sound wave at the temperature 'T'. We know that:
v = f λ
where,
v = speed of sound at temperature T
f = frequency of sound at Temperature T = 684 Hz
λ = wavelength of sound at temperature T = 0.53 m
Therefore,
v = (684 Hz)(0.53 m)
v = 362.52 m/s
Now, the speed of sound at any temperature, T, is given by the formula:
V = Vo√(T/273)
T = (273)(V² /Vo²)
where,
Vo = speed of sound at 0° C = 327 m/s
Therefore,
T = (273)(362.52/327)²
T = 335.52 K = 62.52° C
Ответ:
1.because of the heat produced by the socat
2. they should have control how they placed the heater
3. because the water is to much
4.because is different from the question
5. because that is how the question is