Question

what is the speed of a wave that has a frequency of 125 hz and a wavelength of 1.25 meters? express your answer to the nearest whole number. meters per second

Explanation:

Step1: Recall the wave - speed formula

The formula for the speed of a wave is \(v = f\lambda\), where \(v\) is the speed, \(f\) is the frequency, and \(\lambda\) is the wavelength.

Step2: Substitute the given values

Given \(f = 125\space Hz\) and \(\lambda=1.25\space m\). Substitute into the formula: \(v=(125\space Hz)\times(1.25\space m)\).

Step3: Calculate the value

\(v = 125\times1.25=156.25\space m/s\).

Step4: Round to the nearest whole number

Rounding \(156.25\) to the nearest whole number gives \(156\).

Answer:

\(156\)