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Pastimes : Brain Teasers.

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To: PaperProphet who wrote ()11/20/1996 11:57:00 PM
From: PaperProphet   of 136
 
A. Trailer weight.

No. The total mass of the trailer and contents is the same and no other external forces are acting on the trailer so the average weight read by the scale would be the same. The sparrow stays in the air by pushing air downward and indirectly onto the bottom of the trailer.
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