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Ask the experts.... Trivial questions

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  • All right... so the fly can keep it's life as long as the pull isn't so strong that it can't resist it. I figured it had something to do with inertia too... Case closed?
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    • Originally posted by Chowlett
      Does that hold true even if the car does not contain a vacuum? Surely air effects will reduce the force the fly needs to remain stationary.
      Only in terms of its buoyancy (negligible, and ratio of this to total force does not change with acceleration, unless acceleration is sufficient to create pressure gradient). Force exerted due to air resistance is directly proportional to square of the speed of the fly wrt the air, so if it is to remain stationary then this can be ignored.
      12-17-10 Mohamed Bouazizi NEVER FORGET
      Stadtluft Macht Frei
      Killing it is the new killing it
      Ultima Ratio Regum

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      • fair enough.
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        Buy your very own 4-dimensional, non-orientable, 1-sided, zero-edged, zero-volume, genus 1 manifold immersed in 3-space!
        All women become like their mothers. That is their tragedy. No man does. That's his.
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        • Originally posted by KrazyHorse
          Depends on the placement of the signs...
          More formally, if Salt Lake City is a limit point of the signs, then yes, it will take forever to get there.

          It's frightening what a little analysis does to you...
          12-17-10 Mohamed Bouazizi NEVER FORGET
          Stadtluft Macht Frei
          Killing it is the new killing it
          Ultima Ratio Regum

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          • However, given most road authorities can't make signs arbitarily thin or place them arbitrarily close together, you will eventually reach SLC unless they impose a speed limit of 0 or less.
            The church is the only organisation that exists for the benefit of its non-members
            Buy your very own 4-dimensional, non-orientable, 1-sided, zero-edged, zero-volume, genus 1 manifold immersed in 3-space!
            All women become like their mothers. That is their tragedy. No man does. That's his.
            "They offer us some, but we have no place to store a mullet." - Chegitz Guevara

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