Taking into account the definition of wavelength, frecuency and propagation speed, the frequency of the waves in the tsunami is 2.59×10⁻⁴ Hz.
<h3>What is wavelength, frecuency and propagation speed</h3>
First of all, wavelength is the minimum distance between two successive points on the wave that are in the same state of vibration. It is expressed in units of length (m).
On the other side, frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).
Finally, the propagation speed is the speed with which the wave propagates in the medium, that is, it is the magnitude that measures the speed at which the wave disturbance propagates along its displacement.
The propagation speed relate the wavelength (λ) and the frequency (f) inversely proportional using the following equation:
v = f×λ
<h3>Frequency of the waves in the tsunami</h3>
In this case, you know:
- v=700 km/h= 0.194 km/s
- f= ?
- λ= 750 km
Replacing:
0.194 m/s=f× 750 km
Solving:
f= 0.194 m/s ÷ 750 km
<u><em>λ= 2.59×10⁻⁴ Hz</em></u>
In summary, the frequency of the waves in the tsunami is 2.59×10⁻⁴ Hz.
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