In: Physics

*S* and *P* waves from an earthquake travel at
different speeds, and this difference helps in the determination of
the earthquake "epicenter" (where the disturbance took place).

(a) Assuming typical speeds of 8.0 km/s and 5.7 km/s for
*P* and *S* waves, respectively, how far away did the
earthquake occur if a particular seismic station detects the
arrival of these two types of waves 5.0 min apart? 5947840 KM IS
INCCORECT WHAT IS THE CORRECT ANSWER?

km

(b) Is one seismic station sufficient to determine the position of
the epicenter?

Yes/No

Explain.

P and S waves from an earthquake travel at different speeds, and
this difference helps in locating the earthquake “epicenter” (where
the disturbance took place).
(A) If an earthquake occurs and these two waves
arrive at a particular seismic station with the P wave 2.0 min
ahead of the S wave, then how far away was the earthquake? Assume
typical speeds of 8.5 km/s and 5.5 km/s for P and S waves,
respectively.
For part A i found 1.9 x...

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An earthquake P wave traveling at 7.7km/s strikes a boundary within the Earth between two kinds of material.
If it approaches the boundary at an incident angle of 44? and the angle of refraction is 33?, what is the speed in the second medium?
Express your answer to two significant figures and include the appropriate units.

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Explain the difference in the between and within variance of
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Life InsuranceCompare 4 different rating agencies (A.M.Best;
Fitch Ratings; Moody’s investor’s Service; Standard & Poor’s
(S&P)), please point out the pros and cons of each rating
agencies.

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