how it works?

Discussion in 'Physics & Math' started by ethernos, Sep 8, 2017.

  1. ethernos Registered Member

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    integral a to 0 accelartion x volume
    x time dx
     
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  3. origin Trump is the best argument against a democracy. Valued Senior Member

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    Acceleration x volume x time? That leaves you with \(\frac{m^4}{s}\), what is that suppose to be?

    Are you just trolling here or is there something you want to discuss?
     
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  5. ethernos Registered Member

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    i also would like to know what it is.
     
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  7. origin Trump is the best argument against a democracy. Valued Senior Member

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    What is 'it'?
     
  8. ethernos Registered Member

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  9. origin Trump is the best argument against a democracy. Valued Senior Member

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    \(m^4\) is nonsense in a physical sense. Mathematically you can take 1 m and raise it to the 4th power and it would give \(1 m^4\)
     
  10. ethernos Registered Member

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    in non physical sense does it make sense?
     
  11. origin Trump is the best argument against a democracy. Valued Senior Member

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    I have no idea how to respond to that.
    Try this, write out 3 - 5 complete sentences that describe what it is you are trying to discover.
     
  12. exchemist Valued Senior Member

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    Thread reported with request for it to go to the cesspool.

    Nothing Ethernos has posted makes any sense whatsoever.
     
  13. Kittamaru Now nearly 40 pounds lighter. Staff Member

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    Lets give this one last chance:

    Ethernos - what, exactly, are you trying to do? Is this a math problem from your homework?
     
  14. exchemist Valued Senior Member

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    Good to see you are on the case. Thanks.
     
  15. ethernos Registered Member

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    no! sorry. what i actually tried to ask was "could volume be reduced or increased due to acceleration and time?"
     
  16. Kittamaru Now nearly 40 pounds lighter. Staff Member

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    The only way I can think of off the top of my head for acceleration/deceleration to affect volume would be through resistance causing an increase in temperature in a substance resulting in a state change from liquid to gas (which would result in an increase in volume for a given mass).

    Beyond that, I don't believe it does - someone with a deeper physics background could probably explain better.

    As for time - again, I don't believe the passing of time itself affects volume. It could indirectly, via decomposition and the like.
     
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  17. ethernos Registered Member

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    thank you...
     
  18. hansda Valued Senior Member

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    If this object is accelerated to a relativistic speed, its volume will decrease as per Lorentz length reduction.
     
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  19. origin Trump is the best argument against a democracy. Valued Senior Member

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    That depends on which frame you are in.
     
  20. hansda Valued Senior Member

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    See the Lorentz equation for length reduction.
     
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  21. Kittamaru Now nearly 40 pounds lighter. Staff Member

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    I was under the impression that Lorentz Length Reduction was only based on the stationary outside observer, not the "actual" length? Eg, a co-moving object within the vessels rest frame will not notice a reduction in length, and thus would not note a reduction in volume. As a result, the "actual" volume of the vessel would not decrease (ergo, if you have a vessel of one cubic meter full of water, and accelerate it to 90% the speed of light, water would not "spill out" due to Lorentz Reduction).
     
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  22. origin Trump is the best argument against a democracy. Valued Senior Member

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    Already have, hence my comment that it depends on your frame.
    The observers own frame will not be length contracted.
     
  23. hansda Valued Senior Member

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    Kittamaru,

    See this link https://en.wikipedia.org/wiki/Length_contraction . When the electron travels at 0.0447c, its contracted length is 99.9% of the length at rest. At 0.141c the contracted length is 99%. So, you can see as the relativistic speed of electron increases its length reduces. This length reduction will cause a volume reduction.
     

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