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In which one of the following locations can a person hear the echo of a sound? A. Less than 33.2 meters behind the reflecting surface B. Less than 16.6 meters in front of the reflecting
surface C. At least 33.2 meters behind the reflecting surface D. At least 16.6 meters in front of the reflecting surface
At least 16.6 meters in front of the reflecting surface
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Asked 6/9/2012 1:49:29 PM
Updated 3/25/2013 9:52:24 AM
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At least 16.6 meters in front of the reflecting surface
Added 3/25/2013 9:52:24 AM
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