Geography, 18.09.2019 02:20 breann6

When an earthquake occurs, two types of sound waves are generated and travel through the earth. the primary, or p, wave has a speed of about 10.0 km/s and the secondary, or s, wave has a speed of about 2.5 km/s. a seismograph, located some distance away, records the arrival of the p wave and then, 180 s later, records the arrival of the s wave. assuming that the waves travel in a straight line, how far is the seismograph from the earthquake?

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