Unit 9- continued

Mr. Mcphee is going down a little hill. He's freaking out before he even takes off, and emits a gross screech sending out these imaginary red sound waves through the air. So these sound waves are moving at a constant speed of 340 m/s through the air. As Mr. Mcphee goes down the hill, the sound waves now look a little different. They are all closer together in the direction that Mr. Mcphee is moving, but are further apart to his left.
This is the doppler effect! exciiting !!