Voices of swimmers at a pool travel 400 m/s through the air and 1,600 m/s underwater. the wavelength changes from 2 m in the air to 8 m underwater. how has the change in media affected the frequency of the wave?

The frequency of the wave has not changed.

In fact, the frequency of a wave is given by:

where v is the wave's speed and is the wavelength.

Applying the formula:

- In air, the frequency of the wave is:

- underwater, the frequency of the wave is:

So, the frequency has not changed.

The change in media affected the frequency by a quarter.

The sound velocity (), in meters per second, is described by the following expression:

(1)

Where:

By (1), we get expression for the frequency:

Now we proceed to determine the frequency associated to each medium:

Water (, )

Air (, )

The change in media affected the frequency by a quarter.

We kindly invite to check this question on wavelengths: link

i would say the answer is food.

hope this !

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.