The distance from an earthquake epicenter to New York City is 3000 km. What is the approximate travel time for the P-waves from the epicenter to the city??
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To calculate the approximate travel time for P-waves from the earthquake epicenter to New York City, we need to know the average speed of P-waves in Earth's crust.
The average speed at which P-waves propagate through the Earth's crust is about 8 km/s (kilometers per second).
To find the travel time, we need to divide the distance by the speed:
Travel time = Distance / Speed
Given:
Distance = 3000 km
Speed = 8 km/s
Travel time = 3000 km / 8 km/s
Travel time = 375 s (seconds)
Therefore, the approximate travel time for the P-waves from the earthquake epicenter to New York City is around 375 seconds.