a wave is traveling at 36 m/s. if its wavelength is 12 m, how many times does a wavelength move across a set…

a wave is traveling at 36 m/s. if its wavelength is 12 m, how many times does a wavelength move across a set point every second? one time three times twelve times thirty - six times

a wave is traveling at 36 m/s. if its wavelength is 12 m, how many times does a wavelength move across a set point every second? one time three times twelve times thirty - six times

Answer

Explanation:

Step1: Recall wave - speed formula

The wave - speed formula is $v = f\lambda$, where $v$ is the wave speed, $f$ is the frequency, and $\lambda$ is the wavelength. We want to find the frequency $f$, which represents the number of wavelengths that pass a fixed point per second. We can re - arrange the formula to $f=\frac{v}{\lambda}$.

Step2: Substitute given values

Given that $v = 36\ m/s$ and $\lambda=12\ m$. Substitute these values into the formula: $f=\frac{36\ m/s}{12\ m}$.

Step3: Calculate the frequency

$f = 3\ Hz$. A frequency of 3 Hz means that 3 wavelengths move across a set point every second.

Answer:

B. three times