why does a strip of paper rise after blowing over its surface
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When we blow air above the paper strip, low pressure is created above the strip, because high speed winds are always accompanied by reduced air pressure. Therefore, because of the higher air pressure below the strip, it is pushed upwards.
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When we blow air above the paper strip, low pressure is created above the strip, because high speed winds are always accompanied by reduced air pressure. Therefore, because of the higher air pressure below the strip, it is pushed upwards.
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