When an earthquake occurs two types of sound waves are


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 6.0 km/s and the secondary, or S, wave has a speed of about 2.0 km/s. A seismograph, located some distance away, records the arrival of the P wave and then, 190 second later, records the arrival of the S wave. Suppose that the waves travel in a straight line, find how far is the seismograph from the earthquake?

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Physics: When an earthquake occurs two types of sound waves are
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