An earthquake generates seismic waves with a velocity of 4 km/s. If an observer records the arrival of P-waves 20 seconds before the arrival of S-waves, calculate the distance from the earthquake's epicenter to the observation point.

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Topic: Physics Posted 1 year ago

An earthquake generates seismic waves with a velocity of 4 km/s. If an observer records the arrival of P-waves 20 seconds before the arrival of S-waves, calculate the distance from the earthquake's epicenter to the observation point.

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Koala Tutor

Oct 16, 2023

Koala Ai Support

The difference in arrival time between P-waves and S-waves can be used to calculate the distance from the earthquake's epicenter to the observation point using the formula:

Distance = Velocity * Time

Given that the velocity of seismic waves is 4 km/s and the time difference is 20 seconds, we can substitute these values into the formula to find the distance:

Distance = 4 km/s * 20 s

Distance = 80 km

Therefore, the distance from the earthquake's epicenter to the observation point is 80 kilometers.

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