narmeena2004 narmeena2004

25-03-2021
Physics

contestada

PLEASE HELP ME WITH THIS ONE QUESTION
If a sound wave has a wavelength of 0.790 meters, and is travelling at a speed of 355 m/s, what is the period of oscillation for this wave?

Respuesta :

joselo09111 joselo09111

25-03-2021

Wavelength=velocity/frequency
Time a.k.a period = 1/frequency

Step 1: solve for frequency using the first equation
0.79m = 355/frequency
Frequency=280.45 Hz

Step 2: solve the period using the second equation

1/280.45 = 0.00357=3.57*10^-3 seconds

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