[B] Earthquakes generate two sorts of waves in rock, shear or 5 waves which travel at about 4.5km/s and pressure or P waves traveling at about 8 km/s.(1) After one such quake, a seismograph station picks up the S wave 3.0 minutes after the P wave.How far away was the source, or epicenter, of the earthquake? |(2) When a quake is detected, a steady 250 Hz alarm sounds in the hallway of a facility to alert theperson on watch. The alarm is also sent to the cell phones of the staff on duty which emit the same250 Hz tone. One of the staff responding to the alert runs down the hall, approaching the hallwayspeaker. She notices a 2 Hz variation in the loudness of the 250 Hz tone as she runs with her phone.What frequency is she hearing from the speaker? From your answer, how fast was she running, if thespeed of sound is 344 m/s?A wave traveling through granite comes to a boundary with sandstone. The effective bulkmodulus and density for each of these rocks is given in the table below. If you look uphow to do this, I have already adjusted the bulk modulus using the shear modulus.Bulk modulus:DensityGPakg/m3Granite922660Sandstone1523233) Calculate the wave speed for P waves in granite and in sandstone.4) If the wave in the granite hits the boundary with the sandstone at an angle of 90°(head-on, no angle to worry about), describe the reflected and transmitted waveamplitudes (relative size, flipped or not). (No math here.)5) Derive the transmission and reflection coefficients (the ratios of the reflected andtransmitted amplitudes to the incident amplitude) and calculate their values. Omit anypossible phase shifts here. It is simplest to set the boundary as x = 0 and use cosinefunctions for each of the 3 waves.

Hai, since there are multiple questions posted, we will answer the first question. The equation for…

[B] Earthquakes generate two sorts of waves in rock, shear or S waves which travel at about 4.5 km/s and pressure or P waves traveling at about 8 km/s. (1) After one such quake, a seismograph station picks up the S wave 3.0 minutes after the P wave. How far away was the source, or epicenter, of the earthquake? |

[B] Earthquakes generate two sorts of waves in rock, shear or S waves which travel at about 4.5 km/s and pressure or P waves traveling at about 8 km/s. (1) After one such quake, a seismograph station picks up the S wave 3.0 minutes after the P wave. How far away was the source, or epicenter, of the earthquake? |

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter13: Vibrations And Waves

Section: Chapter Questions

Problem 50P: Workers attach a 25.0-kg mass to one end of a 20.0-in long cable and secure the other end to the top...

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Similar questions

A seismograph records the S- and P-waves from an earthquake 20.00 s apart. If they traveled the same path at constant wave speeds of vs=4.00 km/s and vp=7.50 km/s, how far away is the epicenter of the earthquake?
A sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.
How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 40.0 m and a propagation speed of 5.00 m/s?
Consider what is shown below. A 20.00-kg mass rests on a frictionless ramp inclined at 45° . A string with a linear mass density of =0.025 kg/m is attached to the 20.00-kg mass. The string passes over a frictionless pulley of negligible mass and is attached to a hanging mass (m). The system is in static equilibrium. A wave is induced on the string and travels up the ramp. (a) What is the mass of the hanging mass (m)? (b) At what wave speed does the wave travel up the string?
A string is fixed at both end. The mass of the string is 0.0090 kg and the length is 3.00 m. The string is under a tension of 200.00 N. The string is driven by a variable frequency source to produce standing waves on the string. Find the wavelengths and frequency of the first four modes of standing waves.
To increase the intensity of a wave by a factor of 50, by what factor should the amplitude be increased?
If the tension in a string were increased by a factor of four, by what factor would the wave speed of a wave on the string increase?
Give one example of a transverse wave and one example of a longitudinal wave, being careful to note the relative directions of the disturbance and wave propagation in each.
Can you perceive the shift in frequency produced when you pull a tuning fork toward you at 10.0 m/s on a day when the speed of sound is 344 m/s? To answer this question, calculate the factor by which the frequency shifts and see if it is greater than 0.300%.
Workers attach a 25.0-kg mass to one end of a 20.0-in long cable and secure the other end to the top of a stationary crane, suspending the mass in midair. If the cable has a mass of 12.0 kg, determine the speed of transverse waves at (a) the middle and (b) the bottom end of the cable. (Hint: Dont neglect the cables mass. Because of it, the tension increases from a minimum value at the bottom of the cable to a maximum value at the top.)
What is the wavelength of the waves you create in a swimming pool if you splash your hand at a rate of 2.00 Hz and the waves propagate at a wave speed of 0.800 m/s?
A seismograph records the S- and P-waves from an earthquake 20.00 s apart. If they traveled the same path at constant wave speeds of vS = 4.00 km/s and vP = 7.50 km/s, how far away is the epicenter of the earthquake?