I know which equations to use for solving Doppler Effect problems, so figuring out which is the observer and which is the source and which is moving or stationary is not the problem, the problem I am having is in solving the actual formulas... This question might belong in the math help section...
Hi Daniel,
I see how you figured the consecutive maxima. I was thinking of a maxima as a positive maxima (crest) and a negative maxima (trough). Since it seems that maxima can only be positive then I get how you arrived at wavelength/2.
To find lambda:
.029 = wavelength/2 -->...
Since the maximum (crest) and minimum (trough) are equal but opposite, would the distance be inversely proportional?
1 wavelength / distance
1/.029
34.48 m/s
Hi Daniel,
Thank you again for your help!
To maybe answer your question this time...
The distance between consecutive maxima or consecutive minima is the wavelength of the sound. The wavelength is generated by the pulse, a compression that propagates away from the source of the sound...
Hmmmmmm,
The condition relating consecutive minima and maxima for a stationary wave would be pressure right? The speed of a wave is dependent upon the medium in which it exists and in this case, the medium is simply air, so standard air pressure I would imagine would factor into the equation...
I have a seemingly easy question I think...but wanted to run it by this board before I submitted my answer.
Homework Question
The sound produced by the loudspeaker in the (attached) drawing has a frequency of 10700 Hz and arrives at the microphone via two different paths. The sound travels...
Thanks for all the replies, I got it! I really did know how to do this (solve for B^2 that is), I must have just had a mental block as my brain has been on vacation for a month.
1887.94 m.
Thanks again!
Thank you for the help!
Ah ha, I see. Now my problem then becomes a basic algebra issue. I understand that the pythagorean theorem is A^2 + B^2 = C^2 and when I sub in the values I get as an equation:
C^2=sqrt(A^2 + B^2) --> 2180^2 = sqrt(1090^2 + B^2)
But I do not know how to solve...
I am confused about a homework problem and was hoping that maybe somebody here can help...
Homework Problem
When a helicopter is hovering 1090 m directly overhead, an observer on the ground measures a sound intensity I. Assume that sound is radiated uniformly from the helicopter and that...