Recent content by zarei

Thanks for reply, I have a similar equation where cannot be solved with DSolve. It can be solved just by NDSolve. Could you please guide me how the final solution can be plotted in terms of constant k when we use the NDSolve?

Hi, I am working with mathematica. I have a simple differential equation as follows: y''[t]+k^2y[t]+(1/t^2)y[t]=0 where k is a constant between 1<k<20. How can solve this equation and then plot y in terms of k? thanks

Suppose instesd of mass we use energy and our fliud be a relativistic perfect fluid.

Is there any relativistic version for Archimedes principle?

Ok! Can this effect help us for underestanding the information paradox?

in classical electromagnetic a charge can make energy. Now consider Howking radiation effect: if an anti-particle fall into the BH the volume of BH will reduce. But if that particle be a charged particle, this charge can make positive energy and increase the volume. Is that right?

in classical electromagnetic a charge can make energy. Now consider Howking radiation effect: if an anti-particle fall into the BH the volume of BH will reduce. But if that particle be a charged particle, this charge can make positive energy and increase the volume. Is that right?

Hi could u help me in the following question: Ilike to know does a blck hole distinguish between a charged or an unchared particle when that particle fall into the black hole? If yes, how?