Recent content by RadiantL

Oh I see, that makes sense haha. Thanks tiny-tim and Dalek1099!

Homework Statement Hi so I'm integrating 1/(x-1) but I think it may have two answers and I'm not sure if I'm right or wrong Homework Equations y = 1/(x-1) The Attempt at a Solution well if you integrate this function you would get y = ln(x-1) (using u substituition) I think...

Thanks for the replies! That, and a little bit of careful reading helped, clear up my mind a little :P

Hi, so I'm having a little trouble understanding why... you would put a dielectric in between a parallel plate capacitor? I know it increases the capacitance but it does so by lowering the potential difference sooo... The charge is still the same, I believe the potential energy also decreases as...

Thanks Murphid and ghwellsjr, really cleared things up :)

Hi, so I was going over my lectures notes and I was looking at the Invariance, S2 for space time. I was just wondering why they call it time-like for S2<0 and space-like for S2>0 because, S2>0 says that there is an inertial frame where events occur at the same time (this has to do with...

Hmm I think I see... i still have one more question regarding the first definition, it seems to talk about (u,v) being different from (u',v') but then at the end of the definition it says they are equal? If you look in D* and T is one-to-one and find a (u1,v1) and then a (u3,v3) aren't they...

Hi, I was just having a little trouble of understanding what it... is saying, well first I'll state what my book says the definition is: A function T:D* \subseteq R2 → R2 is called one-to-one if for each (u,v) and (u',v') in D*, T(u,v)=T(u',v') implies that u = u' and v = v' A function...

i see... following your example, and using t' = y((-v/c^2)x + t) i got the expected answer :) thanks ghwellsjr for clearing up my question!

I think I understand, Δto = proper time, the interval between two events at same position in say, frame S' y = gamma Δt = the time interval between the two events as measured in frame S point of view because the interval between the two events as measured in frame S point of view is longer...

Hmm, so Δt = yΔto if their proper time in their frame is 3 seconds, and y = 2...then the change in time for me would be 6 seconds... so from my frame of reference the time that has passed for me would be Δt = 6s, but when I look at them, I see only 3 seconds have gone by for them...

Right, that's why I'm confused, why is the interval longer? Wouldn't it be less? so Δt = 1/y * Δto so that the time you see elapsed from your point of view is smaller?

Hi, so I think I have a problem with how I am thinking about time dilation anyway here it is so if two events occur at the same position say light beam going up then back down and this occurs in frame S', this would be the proper time right? the interval between the two events. Now the...

Hi, this isn't really a homework problem... but I'm just wondering I see the time axis as c*t, now people say that its to scale the time axis so that the world line of light is 45 degrees. But if you were to multiply time by the speed of light, wouldn't you just get the units metres or...

Oh wow, I guess I should put a little more effort into researching instead of just asking for the answers haha, thanks for the links to the resources :)