Welcome to PHY 121 Blog Help. Here's how it works. For each homework question and lab report we will make a post, this will probably contain a few tips on what the problems are about and how to solve them. If you are stuck on something then instead of emailing us directly you should post a comment in reply to the relevant post. We will try to guide you through tough points and help you understand the problems and the concepts behind them.
Friday, November 5, 2010
Ch10 3 #1
Recall the formulas for the standing longitudinal waves in air columns
7 comments:
Anonymous
said...
how do you go about doing this? I know it has something to do with the formulas of (wavelength)/2 = L
This problem refers to standing waves in air columns which we have not covered in class yet, but clearly described in lecture notes. You should be able to apply them.
The length of my tube was 122 so for part a i did (lambda= L*2) which is 244 then i did the same equation and my numbers were 244,122,81.33 what did i do wrong?
7 comments:
how do you go about doing this? I know it has something to do with the formulas of (wavelength)/2 = L
This problem refers to standing waves in air columns which we have not covered in class yet, but clearly described in lecture notes. You should be able to apply them.
The length of my tube was 122 so for part a i did (lambda= L*2) which is 244 then i did the same equation and my numbers were 244,122,81.33 what did i do wrong?
Pay attention you asked to put your answer in SI units or original units i.e. cm.
My Length is 116cm (1.16m. For both part a and b i am having problems. For part a I put in 1.2,.6,1.7 and the error I get is
Term 1: Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures
however, if i change it mastering physics tells me to try again.
For part b I have the same problem except my numbers are .3,.9, 1.5 except now it tells me .9 and 1.5 have the same error as before.
What is the problem?
My answers for part I:
.77,1.2,2.3
My answers for part II:
4.6,1.5,.92
L=116cm, (1.16m)
it keeps telling me there is something wrong with 1.2 and 1.5. What's wrong?
You have to do it in the ascending order or in growing index for the harmonic
Post a Comment