A fire engine is rapidly approaching the corner. Explain what happens to the frequency of the sound wave as the fire engine draws closer. What do you hear?

Can some please help

3 answers

Read all about it! The latest headlines about sound waves and distance are right here!

http://www.google.com/search?sourceid=navclient&aq=&oq=sound+waves+over+distance&ie=UTF-8&rlz=1T4VRHB_enUS648US649&q=what+happens+to+sound+waves+over+distance&gs_l=hp..1.0j0i22i30.0.0.2.5068675...........0.GOi8-Ex_wvY
I Meant to say can someone please help
Reed posted those websites to help you.

What have you learned from them?