(Solved): A police car siren has frequency f of 1200Hz. The speed of sound is 343m//s. What is f^(') as heard ...

A police car siren has frequency f of 1200Hz. The speed of sound is 343m//s. What is f^(') as heard by the observer if a) Car moves towards observer at 25m//s b) car moves away from observer at 25m//s c) Observer moves toward stationary car at 25m//s d) observer moves away from stationary car at 25m//s e) both move towards each other with v=25m//s f) both move away from each other at v=25m//s 1: f^(')=f((343+25)/(343+25)) 2: f^(')=f((343+25)/(343-25)) 3: f^(')=f((343-25)/(343-25)) 4: f^(')=f(1+(25)/(343)) 5: f^(')=f((1)/(1+(25)/(343))) 6: f^(')=f(1-(25)/(343)) 7: f^(')=f((1)/(1-(25)/(343))) 8: f^(')=f((343-25)/(343+25))