Is this a doppler effect problem?

Click For Summary
SUMMARY

This discussion addresses a Doppler effect problem involving a sound frequency of 130 Hz and an observed frequency of 147 Hz (130 + 17 Hz). The speed of sound is given as 300 m/s. To solve for the speed of the source moving towards the observer, participants reference the formula v = λf, where λ is the wavelength and f is the frequency. The relationship between wavelength, frequency, and velocity is crucial for determining the speed of the slithering object.

PREREQUISITES
  • Understanding of the Doppler effect
  • Familiarity with wave properties (wavelength, frequency, velocity)
  • Knowledge of the formula v = λf
  • Basic concepts of sound waves and their propagation
NEXT STEPS
  • Study the Doppler effect in detail, including its applications in various fields
  • Learn how to calculate wavelength and frequency using v = λf
  • Explore sound wave properties and their impact on perception
  • Investigate real-world examples of the Doppler effect, such as in astronomy and radar technology
USEFUL FOR

Physics students, audio engineers, and anyone interested in wave mechanics and sound propagation will benefit from this discussion.

cheez
Messages
26
Reaction score
0
You hear something slitering toward you in the dark. You know from past experience that somethings slither with a frewuency of 130 Hz. If you hear a frequency of 130+17 Hz, how fast is the litherer slithering toward you (in m/s)? The speed of sound is 300 m/s


Is is a doppler effect problem? But there is no wavelength given in here? Can anybody tell me how to do it?
 
Physics news on Phys.org
Use the relation between wavelength, frequency and velocity to find the wavelength: v=\lambda f.
It's very easy to remember this formula, since f=1/T with T the period. The wave will travel 1 wavelength in 1 period, so v=wavelength/period.
 

Similar threads

Speed of moth related to Doppler Effect
  • · Replies 8 ·
Replies
8
Views
1K
Doppler effect: why do I find this exercise so difficult?
  • · Replies 5 ·
Replies
5
Views
2K
Doppler effect and beat frequency
  • · Replies 3 ·
Replies
3
Views
3K
How do you calculate wind speed using the Doppler effect?
  • · Replies 4 ·
Replies
4
Views
3K
Beats calculation/Doppler Effect
  • · Replies 1 ·
Replies
1
Views
2K
Doppler effect and acceleration of source
  • · Replies 5 ·
Replies
5
Views
2K
Understanding the Doppler Effect: Solving the Bat Problem
  • · Replies 1 ·
Replies
1
Views
5K
Spring and Microphone (Doppler Effect...?)
  • · Replies 7 ·
Replies
7
Views
3K
Doppler effect train frequency question
  • · Replies 4 ·
Replies
4
Views
2K
Calculating frequencies with the Doppler Effect
  • · Replies 1 ·
Replies
1
Views
3K