Recent content by Hiranya Pasan

https://physics.stackexchange.com/questions/44323/at-what-rate-does-a-rotating-black-hole-lose-mass-via-hawking-radiation/44327#44327

Hawking radiation formula shows the fact that when charge and angular momentum increases in a Kerr-Newman black hole (angular momentum in Kerr black hole) Hawking radiation decreases. Can someone explain this? Thank you.

Really?, I thought Kerr black holes having the relationship angular momentum and mass (J=aM), Kerr-Newman black holes also have that kind of a relationship

I've been trying to find out the relationship between Kerr-Newman BH mass, Angular momentum and Charge. But I cannot find it. If some know please let me know. Thank you

No such target, but I only need to demonstrate delay and reflection effects. No need to use specific values.

This is the wave form I get for sine and square pulse inputs I get the the delay output but no reflection effects. First I tried to get the waveform for an open circuit.

I'm trying to construct an analog delay (series of low pass filters) and demonstrate the properties of a transmission line (reflection, attenuating etc.) using a multisim simulation (my attempt attached below). But on the oscilloscope I don't get any kind of reflection. What should I do...

Thanks for the advise and I will follow general relativity and quantum filed theory

I am an undergraduate student of a university, I have taken the research topic as Study of Rotating black holes and Hawking radiation which I am really interested. Research description as follows. The geometric invariant are computed in various black hole geometries in several different...

θ''(t)=dθ'/dt=c sinθ, use the chain rule to change the variables dθ'/dt=(dθ'/dθ)*(dθ/dt)=(dθ'/dθ)*θ' now sub. to the differential equation => θ'(dθ'/dθ)=c sinθ now it has been converted to separable differential equation. <Mod note: Post edited to remove full solution>

you can find e using the initial condition

It should be periodic, since you know the solutions for harmonic oscillators (x=A sin(wt+e)) and the spring potential energy (U(x)=1/2kx^2) and just substitute , U(t)=1/2 k A^2 sin^2(wt+e) , now you can plot this function with numerical values.

Yes, correct for this case, but KE=3/2*pV is not going to work every time, Energy is a function of Temperature only plus KE=3/2*pV works only for ideal gases, so better to go with f/2kT

sorry I did a mistake when typing, you need to multiply by N, because to find Total translational energy

use directly PV=NkT (or also you can us PV=nRT) your calculation of N is incorrect; N=PV/kT I got N=8.9916 x 10^27 molecules now using K.E=3/2NkT = 3/2*8.9916*10^27*1.38 x 10^-23*293.7= 5.4665x10^7 Joules