Radio stations use electromagnetic waves for broadcasting. the chart shows different frequencies of waves used by radio stations. which radio station has the wave with the longest wavelength?

radio station W

Explanation:

The wavelength of a radio wave is given by:

where

c is the speed of light

f is the frequency of the wave

From the equation, we see that the wavelength is inversely proportional to the frequency: the higher the frequency, the shorter the wavelength, the lower the frequency, the longer the wavelength.

Therefore, the waves with longest wavelength are the waves with lower frequency: therefore, the waves emitted by radio station W.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2