Turns out, adding in the frequency domain looks like multiplication in the time domain, so we actually want to multiply the two signals together. In general, a good math model for a sine wave is: ...

The greater the amplitude of a wave then the more energy it is carrying. Don't get confused with this quantity frequency. It is not a distance travelled by waves, nor is it a speed, although it is ...

Don't get confused with this quantity frequency. It is not a distance travelled ... (or sometimes you might see it called velocity) of a wave (\(v\)) is how far the wave travels in a certain ...