[Phys-l] potential energy density for a wave on a string

[Carl Mungan <mungan@usna.edu>]

Well, my last message was about a slightly old topic (2 weeks old). 
Now how about one that is over a decade old? The matter of 
longitudinal momentum for a wave on a string. (Yes, most of the old 
gang weighed in on this topic: 
http://usna.edu/Users/physics/mungan/Scholarship/WaveMomentum.html.

Rowland has a new paper (EJP 32:1475, Nov. 2011) in which he says 
it's impossible to write down an accurate formula for PE density 
without including the longitudinal motion of string elements. Take a 
look if you're interested and see if it persuades you. -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/