Recent content by wtronic

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    Why massless particles must travel at c

    hi Brown, I am wondering where did you get that equation... and what mu means... thanks]
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    Why massless particles must travel at c

    you seem to make sense, but I am guessing my professor is looking for something more mathematical... I don't know, if anything I will try with that
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    Why massless particles must travel at c

    2tesla, maybe since p = mv and E = mc^2 then I can write E = (c^2*p)/v...? but this equation doesn't justify why it has to go like speed c... because any v along with any p will give a value for energy.. am I wrong?
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    Why massless particles must travel at c

    Homework Statement give a logical argument for why a particle with m0 = 0 with nonzero energy has to move with a speed equal to c. Homework Equations The Attempt at a Solution I attempted using the momentum equation but I always get a multiplication by 0 which doesn't make sense...
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    How to Show Lorentz's Identity with Relative Speed?

    never mind guys, i found the answer... i will post the stepwise solution when i get a chance to write it on latex or scan it
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    How to Show Lorentz's Identity with Relative Speed?

    this the actual equation 1+u_{x}single-quoteV/c^2=\sqrt(1-usingle-quote^2/c^2)*\sqrt(1-V^2/c^2)/\sqrt(1-u^2/c^2)
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    How to Show Lorentz's Identity with Relative Speed?

    yeah, I know it is confusing... but that is the whole problem... exactly as it was given to us. For what understand it is like this u = speed of particle 1 in S frame of reference u = sqrt[ux^2 + uy^2 + uz^2] u' = speed of same particle after a lorentz transformation in the S' frame of...
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    How to Show Lorentz's Identity with Relative Speed?

    Homework Statement start from: x = [x' + vt']/sqrt[1 - v^2/c^2] ct = [v/cx' +ct']/sqrt[1 - v^2/c^2] y = y' z = z' Homework Equations show that ( 1 - \frac{u^{2}}{c^{2}})(1+\frac{vux'^{2}}{c^{2}}) = ( 1 - \frac{v^{2}}{c^{2}})(1-\frac{u'^{2}}{c^{2}}) The Attempt at a Solution...
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    Light propagating at angle, under Lorentz transformation

    thanks for the help, I think I solved the problem but i am not confident it is correct. I will just turn it into my professor and see what his coments are. JesseM- Thanks for the link, I went there and it was a good help; I think the approach I was doing is correct. thanks for the help
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    Light propagating at angle, under Lorentz transformation

    well, i have been going over this problem for about 4 hours and everytime i get closer and closer to some answer but I am never convinced i am right. THE PROBLEM: let lambda be the wavelength of light propagating in the x-y plane at an angle theta with respect to the x-axis in the (x,y,z,t)...
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