As a train starts from rest and then accelerates down the

Last updated: 7/26/2022

As a train starts from rest and then accelerates down the track, coming toward me faster and faster, the speed of the sound waves coming toward me will be: Select one: a. equal to the normal speed of sound in air. b. slower than the normal speed of sound in air. c. slower and slower. d. some constant speed faster than the normal speed of sound in air. e. faster and faster.