Acommunications satellite transmits a radio wave at a frequency of 5 x 10^9 hz. what is the signal's wavelength? assume the wave travels in a vacuum. show your work.

Wave Speed = Wave Frequency x Wavelength

You know that the speed of radio waves in a vacuum is 3x10^8 m/s

so you just substitute the values into the equation below.

Wavelength = Wave Speed / Wave Frequency

Wavelength = 3x10^8 / 5x10^9 

Wavelength = 0.06 m

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct