How to get beat frequency from graph

Click For Summary
To determine the beat frequency from the beat envelope of two intersecting waves, the formula fb = f1 - f2 is used, where fb is the beat frequency and f1 and f2 are the frequencies of the individual waves. The discussion suggests that obtaining the frequency of the actual wave may not be the correct approach. A link to HyperPhysics is provided for further explanation on the concept of beats in sound waves. Additional information regarding the specific waves involved may be necessary for a complete analysis. Understanding the relationship between the frequencies of the waves is crucial for calculating the beat frequency accurately.
kthejohnster
Messages
23
Reaction score
0

Homework Statement



how do you get the beat frequency from the beat envelope of two intersecting waves as in the attachment

Homework Equations



fb=f1-f2

The Attempt at a Solution


i thought maybe to get the frequency of the actual wave but don't think that's right
 

Attachments

  • sound_beat-sum.gif
    sound_beat-sum.gif
    6.6 KB · Views: 1,483
Physics news on Phys.org
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 19 ·
Replies
19
Views
1K
  • · Replies 6 ·
Replies
6
Views
5K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 43 ·
2
Replies
43
Views
7K
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K