How Does Liquid Volume in a Soda Bottle Affect the Sound Frequency Produced?

  • Thread starter Thread starter ledzeppelinpa
  • Start date Start date
  • Tags Tags
    Frequency Tube
AI Thread Summary
The discussion revolves around determining the volume of liquid in a soda bottle based on the sound frequency produced when blown into. A specific example is given where a 20cm high bottle produces a sound of 455Hz. Participants express uncertainty about the equations needed for the calculation. One user attempts a solution but arrives at a result of 0.018, which they doubt is correct. The conversation highlights the relationship between liquid volume, sound frequency, and the dimensions of the bottle.
ledzeppelinpa
Messages
4
Reaction score
0
1. A child blows on a 20cm high soda bottle, and it creates a sound of 455Hz, how much liquid is inside the bottle?


2. not nsure about the equations



3. i attempted a solution, but all came out to something along the lines of 0.018

i don't think that's right
 
Physics news on Phys.org
A child blows on a 20cm high soda bottle, and it creates a sound of 455Hz, how much liquid is inside the bottle?

Equation is 1/4*V*1/f = L
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top