Find the intercept time for line three on the graph

Reference no: EM131098297

1. Find the velocities (in meters per second) of the three layers shown in the graph.

(The answer choices are listed as V1, V2, and V3).

2362_Three Layer Graph.jpg

2. The crossover point xco1 is at 230 meters. What is h1?

3. Find the intercept time for line 3 (green line) on the graph by laying a ruler along the line and seeing where it intercepts the Y-axis. Now you have enough information, find the thickness of layer 2 (h2).

4. Now we can calculate θic. Critical refraction is 90° because the interface is horizontal. Use Snell's Law to determine critical incident angle.

5. Last but not least, we can calculate θi. Use Snell's law.

Part 2

1. If an underground explosion has an initial energy (Io) of 1000 db (decibles) what is the energy at 10 meters if the wave is traveling through a material with an absorbtion coefficient of 0.6 db/???

2. We use signal conditioning to _________ the recorded data: Why?

3. A P-wave that strikes a contact generates how many and what types of waves: Why?

4. You have been hired to do a seismic survey of the caldera in Yellowstone National Park. Which energy sources should you not consider using (from table on page 49)? Why?

Reference no: EM131098297

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