Recent content by charlespune

What are the functions of the following C libraries? nr.h nrutil.h What I understood is that these are used when u are calling functions like 'qromb or polint or trapzd' for integration. Acutally when I compile the program I get these errors. nr.h: No such file or directory nrutil.h: No...

I think we can derive conservation laws from F=ma. 1) when total force is zero then momentum is conserved. or for a closed system(where no external force present) 2)if we interpret F.ds as energy we can show PE+KE=constant. only thing we need is proper interpretation of potential energy and...

using F=ma we can easily show that \intF.ds=(1/2)mv2 Now d/dt{\intF.ds} = d/dt{(1/2)mv2} \Rightarrow d/dt{\intF.ds-(1/2)mv2}=0 \Rightarrow (1/2)mv2-\intF.ds=constant Use this to prove conservation of energy. In the case of a body moving under gravity the constant will be initial kinetic energy...

Is conservation laws are more fundamental than Newton's second law in Newtonian mechanics? I know from the point of view of Noether's theorem conservation laws are more fundamental. But all the conservation laws can be derived from the F= ma equation. And from these conservation laws I can't...

@ Wallace thank you, thank you very much.

Actually i want know about the lensing of light from accretion disc around a black hole(kerr and schwarschild). Is the lensing is strong for radie near minimum inner radius of accretion disc. I want know how the accretion disc will look like for a distant observer. Can somebody give me some...

Thanks a lot. I thought relativity of simultaneity was incooperated in length contraction and time dilation.

Consider frame S1 and another frame S2 moving with a velocity v with respect to S1 along +X direction. Consider a photon comes in -X direction. Velocity of photon in S1 is c.I would like to find the velocity of light in S2 from S1 without forgetting length contraction and time dilation as...