Recent content by eftalia

Ah I see. Alright then thanks a lot :)

OH! I see.. Okay I get the answer for the first part now but I'm confused as to how come the protons can be moving at the speed of light? Cos if so I can't find the relativistic mass since v = c and my denominator for gamma will be 0. Or is it a rounding error on my calculator?

The (gamma-1)mc^2 one..

Homework Statement In a certain accelerator, protons of kinetic energy 1.6 x 10^-7 J move round a circular path of diameter 2000m . Calculate: (a) the centripetal acceleration (b) the mass ans for a is 9x10^13 ms-2, for b is 1.78 x 10^-24 kg Homework Equations centripetal...

OHH! Okay I see it now. Thank you :) Does anyone have any advice for the second question?

It says.. the density of states function describes the number of states per unit energy interval, and thus describes the way in which the states of allowed translational energy are distributed.

Well.. I don't really understand despite reading my notes and supplementary books from the library :(. Do I integrate g(E) with respect to E with limits 9.1e and 9.0e? But I can't get the answer..

Hey all, I have two questions. 1) The density of electron energy states is given by g(E) = A sqrt E. Evaluate how many quantum states there are with energies between 9.0eV and 9.1eV. Ansewr in terms of the quantity A. 2) Consider an intrinisic semiconductor. Let Nv and Nc be the number...

Hello! I've been quite puzzled by this question and its solution. Explain why beta-particles penetrate through matter more easily compared with alpha-particles having the same KE? The answer given goes: The mass of beta-particles are much smaller than those of alpha-particles, hence the...

To get from y=yinitial + x (tantheta) - [(gx^2)/(2(vinitial^2)(cos^2theta))] to this equation: (dy)/(dtheta)= x(sec^2theta)-[(gx^2(tantheta)(sec^2theta))/(vinitial^2)] --- Taking y and x not to vary with theta.. then they are taken as constants. differentiating yinitial wrt theta gets...