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anahitah
16.03.2020 •
Mathematics
Un observador se acerca con una velocidad de 15m/s a un parlante estático que está emitiendo un sonido con una frecuencia de 297 Hz. ¿Cuál es la frecuencia percibida por el observador?
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Ответ:
310 Hz
Step-by-step explanation:
This is a spanish language mathematical question.
We translate this to english:
An observer approaches a static speaker at 15 meters per second. The speaker is emitting a sound with a frequency of 297 Hz. What is the frequency perceived by the observer?
Solution:
This can be solved using doppler effect formula. Which is:
Where
f is the observed frequency (297 Hz)
c is the speed of sound (343 m/s)
Now, substituting, we solve:
Rounding,
We can say the perceived frequency would be around 310 Hz
Ответ:
answer:
because that is the way that they eat