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Frequency = Velocity / Wavelength = 100 m/s / 20 m = 5 s-1 or 5 Hz.

Lvl 1

5 Hz (Apex)

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The speed c = 40 meters per second and the frequency f = 120 Hz. The wavelength lambda = c / f. Lambda = 40 / 120 = 0.3333333333 meters.

Since the wave speed equation tells us that the speed of a wave (meters per second)is equal to the wavelength (meters) multiplied by the wave frequency (Hertz), you should be able to calculate your answer by multiplying 12 and 100. Don't forget to include the units that your answer will be measured in!

Wave speed = (wavelength) x (frequency) = (20) x (50) = 1 kilometer per second.

That's the magnitude of the wave's velocity. We can't complete the description

of the velocity because we have no information concerning its direction.

Lvl 5

velocity 100 meter per second

wavelength 20 m

so formula is V=f*wavelength (lambda)

So

frequency=100/20=5Hz

Lvl 2

To find the frequency of wave, we have a formula

v = f(lambda)

Where,

Lambda = wavelength

f=v/lambda

f = 100 × 10^-3/20

f = 0.005Hz

Lvl 2

velocity = frequency × wavelength

frequency = velocity / wavelength

f= 100 /20

f= 5 Hz

Please use the equation:

speed (of the wave) = frequency x wavelength

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5Hz

Wavelength = (speed) / (frequency) = 20/4 = 5 meters.

Lvl 2

Speed is not measured in milliseconds.

Q: What is the frequency of a wave with a velocity of 100ms and a wavelength of 20m?

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velocity = frequency × wavelength frequency = velocity / wavelength f= 100 /20 f= 5 Hz

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