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If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
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The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db
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What adaptation is a variety of animals in a area?...
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