Homework Help: physics

Posted by Ashley on Saturday, November 26, 2011 at 2:50pm.

The velocity of the transverse waves produced by an earthquake is 8.9 km/s, and that of the longitudinal waves is 5.1 km/s. A seismograph records the arrival of the transverse waves 68 s before the arrival of the longitudinal waves. How far away was the earthquake?

physics - drwls, Saturday, November 26, 2011 at 3:22pm
Subtract the fast wave arrival time from the slow wave arrival time.

d/5.1 - d/8.9 = 68

Solve for d.

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