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A sand scorpion can detect the motion of a nearby beetle (its prey) by the waves the motion sends along the sand surface (Fig, 16-50). The waves are of two types transverse waves traveling at v_(1)= 50 m/s and longitudinal waves traveling at V_(1)=150 m//s. If a sudden motion sends out such waves a scorpion can tell the distance of the bestle from the difference ar in the arrival times of the waves at its leg nearest the beetle. What is that time difference if the distance beetle is 37.5 cm? |
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