7. Here is a spectrum for a car horn a student recorded

Last updated: 7/10/2022

7. Here is a spectrum for a car horn a student recorded while the car was moving in red with the horn's stationary spectrum in black: Is the car approaching the recording equipment or moving away from the recording equipment? The car is approaching the recording equipment. The car is moving away from the recording equipment. There is no way to tell which way the car is moving.