# ThroatOfWinter57

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bio website location age member for 2 years, 9 months seen Apr 8 '14 at 19:30 profile views 37

I'm a dilettante programmer with many other interests including but not limited to math, physics, Singularitarianism, AI, music, and gaming.

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 Oct12 awarded Nice Question Sep24 awarded Autobiographer Apr24 revised Finding the wavelength of an electron in its ground state? deleted 3 characters in body Apr24 comment Finding the wavelength of an electron in its ground state? Given an average radius of the ground state ($5.29*10^-11m$) could I use the aforementioned method? Moreover, you mentioned finding the uncertainty in position - would $ΔxΔP = h/4π$ be of use here somehow? Apr24 revised Finding the wavelength of an electron in its ground state? edited body Apr24 asked Finding the wavelength of an electron in its ground state? Feb26 asked The universe's lack of an 'edge', and how that relates to the multiverse? Feb26 revised Meaning of subscript in $V=\frac{1}{2}\left(\frac{d^2 V}{{dq_i}{dq_j}}\right)_0$ added 224 characters in body Feb26 awarded Commentator Feb26 comment Meaning of subscript in $V=\frac{1}{2}\left(\frac{d^2 V}{{dq_i}{dq_j}}\right)_0$ Oops, I guess. It's changed now though. Also, and I just now realized this, but in Physics we have Epsilon nought which obviously does not mean initial permittivity of free space! I'll make a futile edit. Jan11 accepted At what rate does a rotating black hole lose mass via Hawking Radiation? Dec11 revised Using thermodynamics and Kinematics together to solve a parachuter problem? deleted 5 characters in body Dec11 comment Using thermodynamics and Kinematics together to solve a parachuter problem? No rates were given. All we were given was the ideal gas law formula, the drag formula, the density formula, a formula for Earth's radius according the the latitude, and the position equation ($x= xi + vit + .5at^2$). We were meant to find the rates individually and then use them to find other rates etc. in order to finally arrive at displacement. Dec11 comment Using thermodynamics and Kinematics together to solve a parachuter problem? True, but the problem here is that pressure, density, and temperature are all changing, and those rates are not given (this is a related rates problem for calculus.) I'll try just finding Temp though. But, what can I do about not having velocity? Dec11 comment Using thermodynamics and Kinematics together to solve a parachuter problem? Pressure, Volume, molar weight of atmosphere, number of moles, gas constant, drag coefficients, and avg density are given (among some others). Dec11 asked Using thermodynamics and Kinematics together to solve a parachuter problem? Nov25 awarded Supporter Nov25 comment At what rate does a rotating black hole lose mass via Hawking Radiation? That makes sense. However, I went to your wikipedia link, and my doubt was rekindled. You had $dM/dt = Pc^2$ due to energy-mass equivalence. Wikipedia has $P = -(dE/dt) = -c^2(dM/dt)$. Therefore, according to wikipedia, $dM/dt = P/-c^2$ Nov21 comment At what rate does a rotating black hole lose mass via Hawking Radiation? As Lubos mentioned, do in your power equation do we also equate G and c to 1? Also, is my $dM/dt = (c^2(dR/dt))/(c^4)$ wrong and why? Also, how can you defend your rate of mass loss? No offense, but a few answers have emerged and they all seem promising. Nov16 comment At what rate does a rotating black hole lose mass via Hawking Radiation? I actually didn't use $G$ to get $R$. I first heard that $R = 2GM/c^2$, but I later read that it was equal to $2M$. I'm not so sure that $R = 2M$ is correct. I'll re-run the necessary parts of my work with the other formula for $R$. Anyway, if I what should I use $G = 1$ in and where? All I did was use $R$ to find $dM/dt$ in your mass loss rate formula. My big problem now is finding $dR/dt$ so that I can find the rate the volume decreases in relation to mass loss.