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110. (a) We expect the center of the star to be a displacement node. The star has spherical
symmetry and the waves are spherical. If matter at the center moved it would move
equally in all directions and this is not possible.
(b) We assume the oscillation is at the lowest resonance frequency. Then, exactly one
fourth of a wavelength fits the star radius. If
λ
is the wavelength and
R
is the star radius
then
λ
= 4
R
. The frequency is
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This note was uploaded on 03/20/2010 for the course PHYSICS 191262 taught by Professor Najafzadeh during the Spring '09 term at The Petroleum Institute.
 Spring '09
 NAJAFZADEH
 mechanics

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