Stumbleine75
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 Oct 3 awarded Popular Question Sep 25 awarded Popular Question Oct 12 awarded Nice Question Sep 24 awarded Autobiographer Apr 24 revised Finding the wavelength of an electron in its ground state? deleted 3 characters in body Apr 24 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? Apr 24 revised Finding the wavelength of an electron in its ground state? edited body Apr 24 asked Finding the wavelength of an electron in its ground state? Feb 26 asked The universe's lack of an 'edge', and how that relates to the multiverse? Feb 26 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 Feb 26 awarded Commentator Feb 26 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. Jan 11 accepted At what rate does a rotating black hole lose mass via Hawking Radiation? Dec 11 revised Using thermodynamics and Kinematics together to solve a parachuter problem? deleted 5 characters in body Dec 11 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. Dec 11 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? Dec 11 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). Dec 11 asked Using thermodynamics and Kinematics together to solve a parachuter problem? Nov 25 awarded Supporter Nov 25 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, $dM/dt = P/-c^2$