Can someone explain to me how to answer this problem in simple ways? (i get really confused when it comes to math) a communications satellite transmits a radio wave at a frequency of 5 • 109 hz. what is the signal’s wavelength? assume the wave travels in a vacuum.

When I find a problem like this, I find it helpful to think about what I know and what equation will help me.

The question tells us the frequency of the wave Hz. We want to work out the wavelength. What equation links these two quantities?

Wave Speed = Frequency x Wavelength
(we know all electromagnetic waves travel at the speed of light in a vacuum)


and then divide by to get the wavelength.

Wavelength = m