The rumble of an explosion 6,000-m away is felt by a hiker’s feet. If the speed of sound along the ground is 3,000-m/s, how much time later will she hear the explosion?
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The rumble of an explosion 6,000-m away is felt by a hiker’s feet. If the speed of sound along the ground is 3,000-m/s, how much time later will she hear the explosion?
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