^'^ 



0.001 



itiil:]ll[ii#i#ll''f^i'l-|!in']-]1^iti^|tiMr!^1-lin^i^^ 



I II 



0.01 0.02 0.04 0.06 0.1 0.2 0.4 0.6 0.8 1.0 2.0 4.0 6.0 8.0 100 



d 



(ft/sec2) 



(after Le Mehaute,l969) 



Figure 2-7. Regions of Validity for Various Wove Theories 



2-35 



