FRONT 

 OF PRESSURE 



WAVE 



Figure 19. The response of a cylindrical shell to a pressure wave. The arrows indicate velocities. On 

 the surface of the shell, the velocity of the plating must be equal to that of the water particles. 

 The dashed curve indicates the wave reflected from the shell. The translation of the cylinder 

 originates another pressure wave which is not shown in this sketch. 



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