A 4 Hz wave propagates along the cord at a speed of 8 m / s. the wavelength is?

To solve this problem, you first need to determine the period of the wave.

This requires an integer value equal to 1 divided by the frequency value.

In this case, we get:

T = 1/4 = 0.25 s. (This is the repetition period of the wave).

Find the wavelength.

To do this, you need to multiply the wave period by the propagation speed.

In this case, we get:

8 * 0.25 = 2 meters.

Answer: The wavelength will be 2 meters.