apex - 3.6 .
to find the wave speed you multiply the frequency and the wave length .
We know the formula of speed of a wave is given by V = FW... where V is the speed , F is the frequency and W is the wavelength so very clearly the speed of this wave is 4*3 =12 m/s.
The speed of any wave is equal to the product of frequency x wavelength.
Speed = (frequency) x (wavelength) = (36) x (12) = 432 meters per second.Isn't this a pretty high speed for sound in air . . . ? ? ?
The answe would be 12. Because, the equation for wave speed (v) can be calculated using wavelength (λ) and frequency (f): v = λ × f. For example, to determine the wave speed of a wave that has a wavelength of 5 m and a frequency of 4 Hz, replace the λ and f with the values given and solve: v = 5 m × 4 Hz = 20 m/s. So all you have to do is multiply .
Frequency = Velocity / Wavelength = 100 m/s / 20 m = 5 s-1 or 5 Hz.
Speed = (frequency) x (wavelength) = (12 per sec) x (2 meters) = 24 m/sec
We know the formula of speed of a wave is given by V = FW... where V is the speed , F is the frequency and W is the wavelength so very clearly the speed of this wave is 4*3 =12 m/s.
Frequency = (speed)/(wavelength) = (12 cm/sec) / (3 cm) = 4/second = 4 Hz
Speed = (wavelength) x (frequency) = (3 x 4) = 12 meters per second
The speed of the wave is 4x3= 12 meters/second.
Speed = (wavelength) x (frequency) = (2 x 6) = 12 meters per second.That's the wave's speed. "Velocity" is something different, not just a wordto use when you mean "speed" but you want to sound more technical.
The speed of any wave is equal to the product of frequency x wavelength.
Speed = (frequency) x (wavelength) = (36) x (12) = 432 meters per second.Isn't this a pretty high speed for sound in air . . . ? ? ?
The answe would be 12. Because, the equation for wave speed (v) can be calculated using wavelength (λ) and frequency (f): v = λ × f. For example, to determine the wave speed of a wave that has a wavelength of 5 m and a frequency of 4 Hz, replace the λ and f with the values given and solve: v = 5 m × 4 Hz = 20 m/s. So all you have to do is multiply .
Frequency = (speed)/(wavelength) = 12/2 = 6 per second = 6 Hz.Note:The question doesn't give enough information to describe the velocity. "12" is nota velocity, but it can be a speed, and we've assumed that it is. Fortunately, 'speed'is all we need to answer the question.
The velocity of a wave is wavelength x frequency. velocity = 3m x 12/s = 36m/s
Frequency = Velocity / Wavelength = 100 m/s / 20 m = 5 s-1 or 5 Hz.