Recent content by citra

Homework Statement The behavior of a neutron losing energy by colliding elastically with nuclei of mass A is described by a parameter ξ1, ξ1 = 1 + \frac{(A-1)^2}{2A}*ln\frac{A-1}{A+1} An approximation, good for large A, is ξ2= \frac{2}{A+2/3} Expand ξ1 and ξ2 in powers of A−1. Show...

What happens to the ions that are released from the material after e- are released? How come the material doesn't completely degrade?

Thanks for your input. Do you think there are any essential courses that are necessary to fill in gaps? I have not taken PDE/Fourier series class, for example. Is that something I should seek out?

That may be true, but I was still considered (he saw my transcript before he set up all the interviews). I am more focused on what I can do to improve my app for physics PhD, I can't really change my undergrad GPA at this point.

Hello there- I graduated in May 2010 with a BS in Chemistry (from US) and various research experience/ publications in materials science (polymers and applications), neuroscience/neurochem. Toward the end of undergrad, I decided I wanted to switch fields but I was not sure what my specific...

Homework Statement the volume charge density Pe= Po (1- (r^2/r0^2)) the sphere has a radius of r0 and r is measured from the center for a point P inside the sphere (r<r0), determine the electric potential V if V=0 at infinity Homework Equations E= Qencl/ eps0*A= kQ/r^2 Qencl=...