Lecture 9 - May 1, 2008 Physics 40B Lecture 9 1 Physics...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: May 1, 2008 Physics 40B Lecture 9 1 Physics 040B/001-S08 Chap. 15:6-8 Standing Waves Review Transverse and Longitudinal Waves Traveling Wave: y ( x , t ) = f ( x ! vt ) and y = f (x +vt) Harmonic (Sinusoidal) Wave Propagation velocity v = dx dt = ! k v y = " y " t v y max = ! A a y = " v y " t a y max = ! 2 A Harmonic Wave Function " 2 y " x 2 = 1 v 2 " 2 y " t 2 Wave Equation for Elastic Media: y ( x , t ) = A cos( kx "# t ) T = 2 $ # f = # 2 $ % = 2 $ k k = 2 $ % y ( x , t ) = A cos 2 " x # $ 2 " t T % & ( ) * v = + k = # T = # f , # = v f May 1, 2008 Physics 40B Lecture 9 2 v = F Velocity of Traveling Wave on String/Wire P = dW dt = 1 2 ! 2 A 2 v Power Transmitted by Harmonic (Sinusoidal) Traveling Wave Review Continued May 1, 2008 Physics 40B Lecture 9 3 Assignment #4 May 1, 2008 Physics 40B Lecture 9 4 Refections oF Waves at Boundaries ixed End__ Refection is negative so that positive pulse and negative refected pulse cancel since end oF string cant move. Reaction Force oF wall generates negative pulse....
View Full Document

This note was uploaded on 06/18/2008 for the course PHYS 40c taught by Professor Allenzych during the Spring '08 term at UC Riverside.

Page1 / 11

Lecture 9 - May 1, 2008 Physics 40B Lecture 9 1 Physics...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online