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.
Added by Mical J.
Step 1
Show more…
Show all steps
Your feedback will help us improve your experience
Narayan Hari and 79 other Physics 103 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
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.
A train has a horn that produces a sound with a frequency of $311 \mathrm{~Hz}$. Suppose you are standing next to a track when the train, horn blaring, approaches you at a speed of $22.3 \mathrm{~m} / \mathrm{s}$. By how much will the frequency of the sound you hear shift as the train passes you?
A train moving with a speed of $31.8 \mathrm{m} / \mathrm{s}$ sounds a $136-\mathrm{Hz}$ horn. What frequency is heard by an observer stand ing near the tracks as the train approaches?
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