An explosion takes place in an underground mine 15 km away from a home located in a valley where the soil consists of a clay material with Youngs modulus Y 2 9 10 9 Pa The average density of the soil in that area is 3 1 g cm 3 How long after the P waves have shaken the home does the sound of the blast finally arrive

Question: An explosion takes place in an underground mine 15 km away from a home located in a valley where the soil consists of a clay

An explosion takes place in an underground mine 15 km away from a home located in a valley where the soil consists of a clay material with Young’s modulus Y = 2.9 × 10⁹ Pa. The average density of the soil in that area is 3.1 g/cm³. How long after the P waves have shaken the home does the sound of the blast finally arrive?

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