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sandy123
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Grace_S 5908 days ago
kukur 5908 days ago

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 sound and waves
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Posted on 01-27-10 9:04 PM     Reply [Subscribe]
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Ok guys want your help with this prob...


The speed of a transverse wave on a string is 450m/s and the waveleng is 0.18m. Amplitude of the wave is 2.0mm. How much time is required for a particle of the string to move thorugh total distance of 1000m ? 
 
Posted on 01-27-10 10:16 PM     Reply [Subscribe]
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There are several efficient ways to solve this problem.

1) Read your textbook thoroughly and try to understand the fundamentals. If textbooks are not available, google is a helpful resource.

2) Your professor is not going to give you the solution but will surely help you in understanding the problem.

3) Most workable and hassle-free - make a study group with your classmates, but make sure you carry ethics with you all the time, meaning absolutely NO-CHEATING. (You do not want to flunk your classes, do you?)

Having said that, the problem is not bad at all. Try a little harder, think more and bingo there you go with a perfect answer, and Sandy123 scoring the perfect score in every assignment. :D

No more digression!

Since the speed and the wavelength are given, you can easily calculate the Time Period for each cycle using the formula: wavelength (lambda) = speed (v) * T

Once you find T, calculate the number of cycles to cover 1000m by diving total distance (1000) by the distance/cycle. [ With the given amplitude, you can easily calculate the distance/cycle]

Lastly for the total time taken, multiply the total number of cycles and the T for each cycle.

Now, your work is to plug numbers into the formula and let me know how it goes.

G'luck!

-Grace


Last edited: 27-Jan-10 10:18 PM
 
Posted on 01-28-10 1:33 AM     Reply [Subscribe]
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the answer is 50 secs. its easy if u have a good concept.
 

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