If a train is blowing its horn at a frequency of 800 Hz as it approaches you at 60 m/s, then the frequency that you will hear, in Hz, is closest to (the speed of sound is 343 m/s)
Added by Cristina J.
Step 1
Step 1: Calculate the Doppler effect equation for frequency when the source is moving towards the observer: f' = f * (v_sound / (v_sound - v_source)) where: f' = frequency heard by the observer f = frequency of the source v_sound = speed of sound (343 Show more…
Show all steps
Your feedback will help us improve your experience
Nishant Kumar and 51 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A train emits a 400-Hz horn blast. Use the speed of sound in air as 343 m/s. If the train is moving at 36 m/s, what is the frequency of the sound perceived by an observer standing beside the track? (A) as the train approaches.
Nishant K.
While standing near a railroad crossing, a person hears a distant train horn. The frequency detected by the person is 440 Hz. The train is traveling at 20.0 m/s and the speed of sound is 346 m/s. What is the frequency of the horn?
Pranay S.
Shravya S.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD