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Gravitino22
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Homework Statement
Problem 5 from: http://www.swccd.edu/~jveal/phys274/images/hw01.pdf in case you don't understand my text.
A chain of linear mass density u, and length L is hang-
ing from a ceiling. There is a wave moving vertically
along its length. a) Is the propagation speed constant?
(Justify your answer.) b) Show that the amount of
time it takes the wave to move along the full length is
given by
t=2[tex]\sqrt{\frac{L}{g}}[/tex]
Homework Equations
String waves speed: [tex]\frac{u}{T}[/tex][tex]\frac{\delta ^{2}y}{\delta t^{2}}[/tex]= [tex]\frac{\delta ^{2}y}{\delta x^{2}}[/tex]
The Attempt at a Solution
Ive spent 2 hours trying to use the forumula for a string waves speed but I really don't understand the concept of solving the partial differential equations.
I know that the propagation speed is not constant because of gravity but i don't know how to apply that to the formula.
btw used delta for partial derivatives.
Thanks a lot :)
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