Thanks for the help. I did what you said but without understanding why it works.
Comparing it to the required result, I get something very similar but which requires equations such as the following to be true:
vx2/v2 + fx2 + gx2 = 1
and
-(vxvy)/v2 = fxfy + gxgy Why are these true? (And why...
I really like the 'photon clock' explanation. Imagine you have a photon clock which measures one second as the time it takes a photon to go up a distance d, bounce off a mirror and go back down a distance d. Now imagine you have this photon clock on a train moving at speed v.
Relative to you...
Sorry for digging this thread up, but why does RBR-1 work?
Is B the vx boost matrix? If so, why does it cause it go in the 'easiest direction' when it acts on the rotation matrix. I can see why you then have to do the inverse to go back to the original coordinate basis, but why is the...
Ok, I solved it using bog standard Lorentz transformations. As (annoyingly) easy as that.But I'm still really confused as to why I couldn't get the transformation I mentioned in my first post to work (the Lorentz boost). I don't really get how it works/what the point of it is, so any...
I was reading through my textbook and it said that the angle between the axes of two inertial frames, one stationary and one moving at velocity v is supposed to be tan^-1(v/c). I assumed this would be easy to show, but after spending a couple of hours on this probably trivial problem, I can't...
But how would you know that it is initially in eigenstate Jz? Surely in the general case, you have no knowledge of the initial eigenstate and so it acts as a superposition of all possible eigenstates? And then once an initial measurement is made such a superposition no longer exists.
I've not...
Would it be fair to say that before an observation, a wave-particle is in a superposition of many possible states but that after the observation, the wave-particle is found only in one state?
Would that be analogous to saying that it goes from behaving in a very wave-like manner to behaving...
Im looking for a good website that explains topics in mechanics to high A level/first year University standard. Because currently I just get stuck on a question at Uni and I don't really know what to do to find the answer.