| 1. | The elimination of air friction is useful for flywheel energy storage and ultracentrifuges.
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| 2. | :: Air friction would also affect their handling characteristics.
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| 3. | However the drag / air friction is greater.
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| 4. | Good thing he didn't say " ignore air friction ", or you'd look a little silly.
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| 5. | After a few minutes, the top falls when air friction slows it below the critical speed.
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| 6. | Except for gravity and drag from air friction, momentum is conserved in any interaction of objects.
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| 7. | Reducing the air friction has many benefits.
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| 8. | This acceleration is the same for heavy objects as for light ones, provided air friction ( air resistance ) is discounted.
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| 9. | The two characters'on-air friction is caused not only by the differences in their journalistic credentials, but also their status at the TV station.
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| 10. | The Columbia was protected by thousands of tiles to shield it from the intense heat that builds up from air friction during re-entry.
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