8hw8 - Physics 315: Oscillations and Waves Homework 8: Due...

Info iconThis preview shows pages 1–2. 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
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Physics 315: Oscillations and Waves Homework 8: Due in class on Friday, Nov. 13th 1. A uniform rope of mass per unit length and length L hangs vertically. Determine the tension T in the rope as a function of height from the bottom of the rope. Show that the time required for a transverse wave pulse to travel from the bottom to the top of the rope is 2 radicalbig L/g . 2. Demonstrate that the phase velocity of traveling waves on an infinitely long beaded string is v p = v sin( k a/ 2) ( k a/ 2) , where v = radicalbig T a/m , T is the tension in the string, a the spacing between the beads, m the mass of the beads, and k the wavenumber of the wave. What is the group velocity? 3. The number density of free electrons in the ionosphere, n e , as a function of vertical height, z , is measured by timing how long it takes a radio pulse launched vertically upward from the ground ( z = 0) to return to ground level again, after reflection by the ionosphere, as a function of the pulse frequency,...
View Full Document

This note was uploaded on 11/02/2010 for the course PHY 59372 taught by Professor Fitzpatrick during the Spring '10 term at University of Texas at Austin.

Page1 / 2

8hw8 - Physics 315: Oscillations and Waves Homework 8: Due...

This preview shows document pages 1 - 2. Sign up to view the full document.

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