An earthquake emits both P-waves and S-waves that travel at different speeds through the Earth. A P-wave travels at 9 000 m/s and an S-wave at 4 000 m/s. If P-waves are received at a seismic station 34.0 s before an S-wave arrives, how far is the station from the earthquake center?
a. 1.22E+5 m
b. 4.90E+5 m
c. 2.45E+5 m
d. 9.42E+4 m
e. 1.70E+5 m
c
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