A wave has a wavelength of 4 m and a frequency of 85 Hz. What is the speed of this wave?

Enter your answer as a number (m/s).



Answer :

To determine the speed of a wave, you can use the wave speed formula, which relates the speed of the wave to its wavelength and frequency. The formula is given by:

[tex]\[ \text{Speed} = \text{Wavelength} \times \text{Frequency} \][/tex]

Given:
- The wavelength ([tex]\(\lambda\)[/tex]) is 4 meters.
- The frequency ([tex]\(f\)[/tex]) is 85 hertz (Hz).

Plugging these values into the formula:

[tex]\[ \text{Speed} = 4 \, \text{m} \times 85 \, \text{Hz} \][/tex]

[tex]\[ \text{Speed} = 340 \, \text{m/s} \][/tex]

Therefore, the speed of the wave is:

[tex]\[ 340 \, \text{m/s} \][/tex]