Recent content by beecher

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    Calculating binding energies of ground state electrons

    Ok, I finally found it online. E_{n} = (-Z^{2}R_{e}) / n^{2} Where R_{e} = 0.5(m_{e}c^{2})\alpha^{2} Where \alpha = 1/137 Therefore R_{e} = 0.5 [(9.11x10^-31 kg)(3.00x10^8 m/s)^2](1/137)^2 =2.184x10^-18 J = 13.65 ev So for deuterium, E_{n} = [(-1)^{2}(13.65ev)] / 1^{2} E_{n} = 13.65ev For He...
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    Calculating binding energies of ground state electrons

    Yes, that would make sense, although I can't find that equation anywhere.
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    Calculating binding energies of ground state electrons

    Homework Statement What is the calculated binding energy of the electron in the ground state of (a) deuterium, (b) He^{+} and (c) Be^{+++}? Homework Equations For the hydrogen atom, E_{n} = - E_{o} / n^{2} E_{o} = me^{4} / 2hbar^2(4\piEo)^2 The Attempt at a Solution Not sure...
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    How does Newton's Second Law Relate Velocity and Force?

    Aha! Then it becomes gamma2 giving me mgammadv/dt(gamma2) =mgamma3dv/dt =gamma3ma =Solution! :) Thanks you very much, your help has been greatly appreciated!
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    How does Newton's Second Law Relate Velocity and Force?

    [v2/(c2-v2)]+[(c2-v2)/(c2-v2)] =c2/c2-v2 Sub back into the rest m*gammac2dv/dt/(c2-v2) =[(mc2dv/dt)/(1-v2/c2)1/2] / c2-v2 =[(mc2dv/dt)/(1-v2/c2)1/2] * 1/(c2-v2)
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    Prove s^2 = s'^2 using the Lorentz Transformation

    s'2 = gamma2[1-Beta2(x2-c2t2) s'2 = gamma2[Gamma-2(x2-c2t2) s'2 = x2-c2t2 Finally, finished! I feel exhilaration and also relief, I can go to bed now lol. Thank you so much for your help tonight. I can't really pay you back other then by trying my best to help others in the way you have...
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    How does Newton's Second Law Relate Velocity and Force?

    Your right, I've been doing this for so long my brain is sluggish. So dp/dt = m(v[-1/2(1-v2/c2)-3/2(-2v/c2dv/dt)] + gammadv/dt) =m(v[gamma3v/c2dv/dt] + gammadv/dt) =m(gamma3v2/c2dv/dt + gamma dv/dt) =mgammadv/dt(gamma2v2/c2+1) So thanks to your help I can now see the end in sight but still...
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    Prove s^2 = s'^2 using the Lorentz Transformation

    gamma = (1-Beta2)-1/2. But I'm still confused. Possibly because I've been busting my brains on physics for many hours now. Where will the gamma get me? i need to completely remove the 1-beta2 factor don't I? I can change it into terms of gamma but then its still there in front. gamma =...
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    How does Newton's Second Law Relate Velocity and Force?

    That makes sense, I wasnt thinking when I said gamma was constant. So now I have dp/dt = d/dt(gamma*mv) = m d/dt (gamma*v) and I use product rule = m (v*d/dt gamma + gamma dv/dt) and now I need to find d/dt gamma gamma = (1-v2/c2)-1/2 and I use chain rule d/dt gamma = -1/2...
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    Prove s^2 = s'^2 using the Lorentz Transformation

    Thanks, factoring it out like that made things more clear. That gives 1-beta2(x2 - c2t2) This is what we want except for the factor of 1 - beta2 in the front which I'm still not sure how to get rid of, or account for.
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    How does Newton's Second Law Relate Velocity and Force?

    Homework Statement Newton's second law is given by F = dp/dt. If the force is always parallel to the velocity, show that F = gamma3ma Homework Equations p = gamma*mv gamma = 1/(1-v2/c2)1/2 The Attempt at a Solution I really have no clue where to begin. This is what I've done so...
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    Prove s^2 = s'^2 using the Lorentz Transformation

    Homework Statement Using the Lorentz transformation, prove that s2 = s'2 Homework Equations s2 = x2 - (c2t2) x' = gamma * (x-Beta*ct) t' = gamma * (t - Beta*x/c) The Attempt at a Solution s2 = x2 - (c2t2) Therefore s'2= x'2 - (c2t'2) and x' = gamma * (x-Beta*ct) So x'2 =...
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    Can You Derive F = gamma^3*ma from Newton's Second Law?

    Homework Statement Newton's second law is given by F = dp/dt. If the force is always parallel to the velocity, show that F = gamma3ma Homework Equations p = gamma*mv gamma = 1/(1-v2/c2)1/2 The Attempt at a Solution I really have no clue where to begin. This is what I've done so...
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    How Fast Are Proton and Antiproton Moving Towards Each Other?

    Homework Statement A proton and an antiproton are moving toward each other in a head-on collision. If each has a speed of 0.8c with respect to the collision point, how fast are they moving with respect to each other? Homework Equations Ux = [U'x + V] / [1 + (v/c^2) Ux'] The...
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