PHYSICS 002C Lecture 08

# PHYSICS 002C Lecture 08 - PHYSICS 002C Lecture 08 Serway...

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PHYSICS 002C Lecture 08 April 15, 2009 Serway and Jewett Chapter 13 – Superposition, Interference, Beats, and Standing Waves DEMO : The ukulele is a standing wave machine. Q: A nylon (specific gravity = 1.00) ukulele string has a 1 mm 2 cross sectional area and is 0.5 m in length. [What is the mass per unit length (kg/m) of the string? a) 1; b) 100; c) 0.0001; d) 0.01; e) 0.001.] Q: When a 0.1 kg weight is hung at the center of the string, the string deflects 3.125 mm. [What is the tension in the string (in N)? a) 1; b) 40; c) 60; d) 80; e) 300.] Q: What is the fundamental frequency (in Hz) of the string when it is plucked, given that the string length is a half wavelength? a) 10; b) 200; c) 2000; d) 1000; e) 100. New Material - Chap 14.1 The Superposition Principle The sum of two solutions to a linear wave equation is also a solution. The definition of a linear operator O ( x , y ,…) that acts on a set of functions f ( x , y ,…), g ( x , y ,…), … is that O ( x , y ,…) [ af ( x , y ,…)+ bg ( x , y ,…)]= a O ( x , y ,…) f ( x , y ,…)+ b O ( x , y

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## This note was uploaded on 06/08/2009 for the course PHYS 2c taught by Professor All during the Spring '08 term at UC Riverside.

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PHYSICS 002C Lecture 08 - PHYSICS 002C Lecture 08 Serway...

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