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-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu [mailto:phys-l-
bounces@carnot.physics.buffalo.edu] On Behalf Of Carl Mungan
Sent: Thursday, December 09, 2010 11:00 AM
To: phys-l@carnot.physics.buffalo.edu
Subject: [Phys-l] waves on a string
In the past, we've discussed questions of energy and momentum
transfer for waves on a string. (Try typing "Benumof" into the PHYS-L
archive searcher for example.)
Anyhow, there's a recent Letter paper by Burko in Eur. J. Phys.
31:L71 (2010) claiming the usual textbook formula for energy of a
string wave is wrong. The gist is that instead of the square of dy/dx
in the PE term, one should have y * second deriv. of y w.r.t. x.
find this Letter near the bottom of: http://iopscience.iop.org/0143-
0807/31/5
I wonder if some others on the list can look at this Letter and see
what they think. -Carl
--
Carl E Mungan, Assoc Prof of Physics 410-293-6680 (O) -3729 (F)
Naval Academy Stop 9c, 572C Holloway Rd, Annapolis MD 21402-1363
mailto:mungan@usna.edu http://usna.edu/Users/physics/mungan/
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