3:10 AM
2

I have read that at high energies, electromagnetic and weak force gets stronger and strong force gets weaker and at higher energies all these forces become undistinguishable from another. But I cant wrap my head around why does this happens and why does strength of any force depend on energy? and...

6 hours later…
9:28 AM
5

I've been working on studying Special Relativity and General Relativity for the past few years. As I think we all know, GR gets a lot more complicated than SR, and my knowledge is limited. I am very familiar now with Minkowski space/time diagrams. I have been working with equations for a (Spatial...

7 hours later…
4:56 PM
2

Energy and force, the basic formula Can someone explain to me this chain of equalities? Namely the $v$ in the 4th term and the next term: $$\int d/dt \ ((m/2) v^2) \ dt$$ $$E = \int F \ ds = \int m a \ ds = \int m (\dot v) v \ dt = \int d/dt ((m/2) v^2) \ dt = (m/2) \ v_0^2$$

7 hours later…
11:41 PM
1

When I'm calculating the divergence of a cylinder with uniform magnetic field ($B=K=\text{constant}$) according to the formula of divergence in cylindrical coordinates I'm getting the same constant value as the divergence. $$\nabla\cdot B=K.$$ But from the physical explanation of divergence it sh...