Question 11610: Hello, Here is the question I need to solve to begin with
An earthquake emits primary waves moving at 8.0 Km/s and seconday waves moving at 5.0 km/s. How far from the epi-center of the earthquake is the seismic station if the two waves arrive at the station 2.0 min apart.
What I could figure out (I think)
I was converting time to seconds
2 min = 60x2=120 min
and converting km/s to ft/s
8.0km/s x 1000 m =8000m
8000m x 3.281 = 26248 ft/s
5.0km/s x 1000 m = 5000 m
5000m x 3.281 ft = 16405 ft/s
I was also trying calculations with d=rt where d= distance r= stands for rate of speed and t= time.
Thank you so much to any help or direction you can point me in!
Answer by Earlsdon(6294)   (Show Source):
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