Energy in one dimensional linear waves in a string

Details Energy in one dimensional linear waves in a string Energy in one dimensional linear waves in a string

2010-07-22

arxiv.org/abs/1007.3962v1

European Journal of Physics 31 (2010), L71 - L77

Physics

Classical Physics

5 pages

Scientific paper

We consider the energy density and energy transfer in small amplitude, one-dimensional waves on a string, and find that the common expressions used in textbooks for the introductory physics with calculus course give wrong results for some cases, including standing waves. We discuss the origin of the problem, and how it can be corrected in a way appropriate for the introductory calculus based physics course.

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