What is the frequency in Hz of a wave that travels at 2,500 m/s with a wavelength of 100 m?

f = 25 Hz

Explanation:

We know that :

 where f = frequency ; v = speed & d = wavelength

Here in the question ,

Speed = 2500 m/s

Wavelength = 100 m

Using the above formula ,

Frequency =

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

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