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16.7 At t=0s a small "upward" (positive y) pulse centered at x = 5.0 m is...

16.7

At t=0s a small "upward" (positive y) pulse centered at x = 5.0 m is moving to the right on a string with fixed ends at x=0.0m and x = 13.0 m . The wave speed on the string is 3.5 m/s .

At what time will the string next have the same appearance that it did at t=0s?

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Answer #1

Solution:

f=v / lambda need to double 13

Since it is one full wavelength.

So,

3.5/26=0.134

Now T=1/f then 1/0.134

=7.46

=7.5s

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