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Diatonic254

The answer is; Rayleigh waves

These waves are an intermediate between P-waves and S-waves and are due to the interaction of these waves. They occur of the surface of the earth (hence called surface waves), unlike P-and S-waves that are body waves. Rayleigh waves displace particles in a circular motion just like ocean waves.


lheduardomarques

The sentence in this question is talking about shock waves, which are propagation perturbations whose properties vary. They are produced when a speed above the speed of sound is reached.

How does the shock wave work?

A shock wave forms whenever pressure pulses move through the medium with a speed greater than the speed of sound in that medium. This causes an increase in pressure in this region, generating a shock wave that is also called the sonic boom seen in planes that break the sound barrier.

With this information, we can conclude that Shock waves are propagation perturbations whose properties vary. They are produced when a speed above the speed of sound is reached.

Learn more about speed of sound in brainly.com/question/15381147

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