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1. ### A Process of Successive Approximations

Griffiths must have explained it. Basically, you start with an initial guess of the solution and assume that solutions look like: $$c_a=\epsilon^0c^0_a+\epsilon^1 c^1_a+\epsilon^2c^2_a+...$$ $$c_b=\epsilon^0c^0_b+\epsilon^1 c^1_b+\epsilon^3c^2_b+...$$ Here the superscript denotes the order of...

If you go at any other place in our universe, you will always conclude the same thing as all the galaxies are receding away from you. This proves that there is no unique centre.
3. ### I Calculating Time elapsed in Rocket collision

I have made a mistake in typing. It should be: ##t'=l/(V_a+V_b)\gamma## This the time of the collision as observed in the referance frame of Rocket A which does equal the way I calculated time elapsed in post #1. ##x'## is 0 as expected since the event takes place at the origin in the frame of...
4. ### I Calculating Time elapsed in Rocket collision

Ok. I think I have confused myself in taking events. Using this, we get (Lorentz Transformation to go from A to B): ##\Delta x'= \gamma(lV_a/(V_a+V_b)-V_al/(V_a+V_b)=0## ## t'=\gamma(lV_a/(V_a+V_b)-V_a(lV_a/(V_a+V_b))/c^2 = lV_a/(\gamma (V_a+V_b)##
5. ### I Calculating Time elapsed in Rocket collision

First, from the frame of Earth observer (whom I called A): Event 1: t=0, Coordinates of Rocket B=0 (Only X-Coordinates as the problem is 1D), Coordinates of Rocket C= ##l## Event 2: t=##l/(V_a+V_b)##, coordinates of B= ##V_al/(V_a+V_b)##, coordinates of C=##l(1-V_a/(V_a+V_b))## From the frame...
6. ### I Calculating Time elapsed in Rocket collision

The question was taken from the book A Guide to Physics Problem, Vol-1, Mechanics, Relativity, Electrodynamics by Cahn and Nadgorny. This is just 2nd question under Relativity section. The question to find the time elapsed in the reference frame of B was not asked but I thought about that...
7. ### I Calculating Time elapsed in Rocket collision

So, how we will calculate the time elapsed in B's frame using B's referance frame?

46. ### Particle decaying into two daughter particles - special relativity

Can you explain this?
47. ### Magnetic Interaction Energy

Try using approximation r>>R. The magnetic field is approximately constant over the surface. Or you can be more exact if you Taylor expand the magnetic field due to wire at large distance. After that use: ## U= -m.B##
48. ### Central force on a particle following a logarithmic spiral

Can you elaborate more on your question? Do you want a graph of function?
49. ### Ideal gas in a cylindrical container

It would if ##e^{-gz}## wasn't present. In that case you need limits on ##z##
50. ### Degeneracy of hydrogen energy levels

Yes. The differential equation is same as original Hydrogen atom problem with the restriction. As you have correctly determined only odd values are the solutions so as to satisfy boundary conditions. The degeneracy is now over those restricted ##l##
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