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Thread: Energy

  1. #1 Energy 
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    Postulate: Energy = property of particles x property of space.

    Look: Potential Energy is mgh: mh is a property of particles and g is a property of space. E = pc: p is a property of particles and c is a property of space. Now why doesnt Kinetic Energy = (1/2)mv^2 and E = mc^2 fit herewith?

    For E = mc^2 we may say this is really: E = mkc, and mk is a property of particles and c is a property of space. Where k happens to be numerically equal to c. Would this fit with the theoretic derivation of E = mc^2?

    For kinetic energy we can try to do similarly: E = (1/2)mwv, and then mv/2 is a property of particles and w is a property of particles - so this doesn't work out nicely, except if we prove w is really a property of space. Where v happens to be numerically equal to w.

    Elastic Potential Energy = 1/2k(Delta x)^2 = kDelta xDelta x. Here x is a property of particles then k delta x/2 must be a property of the medium: the rubber band (standing in for: property of space).

    For E = kT we have: T is a property of particles and k is a property of space.

    Is there an equation for Energy that I haven't considered?


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  3. #2  
    Bullshit Intolerant PhDemon's Avatar
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    Even the ones you have considered aren't all correct. E=mc 2 and E=pc are actually parts of the same equation!

    E 2=m2c 4+p2 c 2 .

    The equations you quoted are just special cases when either the particle is at rest or has zero mass. Also in the case where the particle is travelling much slower than c, E=(1/2)mv2 +mc 2 i.e. the particles kinetic energy + the energy due to its rest mass.

    Why don' t you try and learn some physics before attempting to reinvent it!


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  4. #3  
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    Can I just post to say I’m in awe.
    I thought I was somewhat intelligent before joining this forum.
    Now I realize just how ignorant I am.
    Very impressive.
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