Question:

3 A train moving at 80 miles hr sounds the whistle of

Last updated: 6/21/2023

3 A train moving at 80 miles hr sounds the whistle of

3 A train moving at 80 miles hr sounds the whistle of frequency 400 Hz when 1 mile away from a railway crossing What is the frequency heard by an observer 0 6 miles from the crossing perpendicular to the railway track given the speed of sound in air is 0 2 mile s a 440 Hz b 441 Hz c 442 Hz d 444 Hz