Recent content by adwodon

Good afternoon, I've come here to hopefully resolve an issue that cropped up in a debate with a friend. We were discussing weather patterns and chaos theory was brought up. My understanding of chaos theory is that it is a way of explaining behavior of certain deterministic systems aka...

Hello there, I'm an undergrad in my 3rd year and I'm doing an investigation into the 'Preparation of Thin Films and their use in Hall Effect measurements.' We are making thin films of bismuth on glass (with pre drilled terminals) in a vacuum system. The way they suggest measuring the...

Ok so my question is as follows: Can Maxwell Boltzmann statistics be used to describe electrons in a metal at room temperature? I know that the Fermi Temperature in metals is about 10^4 K or something rather high, so does that mean that the metal / electron gas would need to be at a...

Ah i see, thanks! About nodes though, looking at this picture: http://upload.wikimedia.org/wikipedia/en/thumb/e/e7/Hydrogen_Density_Plots.png/660px-Hydrogen_Density_Plots.png I see that the (2,0,0) (3,0,0)(4,0,0) all have probability at the nucleus, whereas ones with l>0 don't (and the...

In my notes for a module on atomic and molecular physics it has this statement: "For a given n the probability density of finding e- near the nucleus decreases as l increases, because the centrifugal barrier pushes the e- out. So the low-l orbitals are called penetrating." I just want to...

Homework Statement f(z)=\sqrt{(z.^3+8)} How many branches (solutions) and branch points does the funtion f(z) have? Homework Equations The first part of the question was working out the roots of z^3+8=0 which I found to be -2, 1+i\sqrt{3} and 1-i\sqrt{3} The Attempt at a Solution...

Hey Sorry Chi Meson I forgot to thank you it was a case of me staring at it so long I completely ignored the vertical part, it took a while but I figured it out before our original due date (tuesday), we got an extension though as barely anyone could do all 3 questions (this being the first and...

Homework Statement A square parallel plate capacitor with vertical plates of area A and distance d, charged with a constant charge Q and is completely filled with a dielectric material the same dimension as the gap between the plates, with dielectric constant k and mass m. Assuming the...

Ok so I used E=mc^2 and got the total energy of the converted material as 6x10^38J Which would sustain that luminosity for 5 years... Thats roughly the same answer I got from the equation in my original post but I thought it was wrong because 5 years seems waaaaay too short. Is that a...

1. Calculate the main sequence lifetime in years of a 10-M\odot star if it has luminosity of 104L\odot and 10% of its mass will be converted from hydrogen to helium in the core. What will the end state of this star be? Ok so I wasn't really sure what to put for working here as I have no idea...