What are the characteristic of compressional waves?
1 Acoustic propagation wave theory. Longitudinal or compression waves are defined as waves where the particle motion is in the same direction in which the wave is propagating. The oscillations in pressure are sinusoidal in nature and are characterised by their frequency, amplitude and wavelength (Figure 9.1).
What are the advantages of bivariate frequency table?
Frequency tables can help researchers to examine the relative abundance of each particular target data within their sample. Relative abundance represents how much of the data set is comprised of the target data.
What does a relative frequency table display?
A relative frequency table is a chart that shows the popularity or mode of a certain type of data based on the population sampled. You can find the relative frequency by simply dividing the frequency number by the total number of values in the data set.
What is the characteristic of Rayleigh waves?
Rayleigh wave is a secondary wave characterized by low frequency and strong energy, propagating mainly along the interface of medium and rapid attenuation of energy with increase in interface distance. The same as reflected wave and refracted wave, Rayleigh wave also contain subsurface geological information.
What are the similarities of Love waves and Rayleigh waves?
Love and Rayleigh waves are guided by the free surface of the Earth. They follow along after the P and S waves have passed through the body of the planet. Both Love and Rayleigh waves involve horizontal particle motion, but only the latter type has vertical ground…
What is the characteristic of Love waves?
Love waves are transverse and restricted to horizontal movement – they are recorded only on seismometers that measure the horizontal ground motion. Another important characteristic of Love waves is that the amplitude of ground vibration caused by a Love wave decreases with depth – they’re surface waves.
What do you mean by Rayleigh waves?
A Rayleigh wave is a seismic surface wave causing the ground to shake in an elliptical motion, with no transverse, or perpendicular, motion.
How do you calculate Rayleigh waves?
Rayleigh waves result from a combination of P and SV motions, while Love waves result from SH waves trapped near the surface. The above second order homogeneous linear differential equation has a general solution of the form f(z) = c1 exp(κcz) + c2 exp(−κcz), where c1 and c2 are constants.
Can Rayleigh waves travel through water?
Love waves (do not propagate through water) can effect surface water only insofar as the sides of lakes and ocean bays pushing water sideways like the sides of a vibrating tank, whereas Rayleigh waves, becasuse of their vertical component of their motion can affect the bodies of water such as lakes.
Are Love or Rayleigh waves cause more damage?
Love waves cause more damage than Rayleigh waves, but both are highly destructive because they occur near the surface of the Earth.
Why do love waves cause the most damage?
Love waves have a particle motion, which, like the S-wave, is transverse to the direction of propagation but with no vertical motion. Their side-to-side motion (like a snake wriggling) causes the ground to twist from side to side, that’s why Love waves cause the most damage to structures.