73 points. The diagram below is a seismograph recording the arrival of seismic waves from a distant earthquake.
A) Which letter represents the arrival of the P-wave?
B) Which letter represents the arrival of the S-wave?
C) Which letter represents the arrival of the surface waves?
84 points. What is the value for the shear modulus of matter in a liquid state?
94 points. Perform a dimensional analysis on the equation for S-wave velocity to show that it will yield a velocity unit. Note: The base units for the pascal is 10^6 points. The bulk modulus of solid iron is 170.0*10^10 Pa and the shear modulus is 82.0*10^10 Pa. The density of solid iron is 6.98 g/cm^3. What is the velocity of a P-wave traveling through solid iron? Note: 1 kg = 1000 g, 1 m = 100 cm.