Recent content by thenewbosco

Apart from cooling and control issues, I do not understand why they would want to have the reaction propagating in one direction. Losses could potentially be minimized by having the highly enriched zone in the centre of a "slab" surrounded by breeding material. The reaction could proceed in both...

how would i calculate the mass percentage from the atomic percentage?

1. For a problem I require the atomic density of uranium atoms per cm^3 in a solution of water. The atomic fraction of natural uranium to water is 1 per 100 and the net density of the solution is 1 g/cm^3. (Natural uranium is assumed to be U-235 at 0.72% of uranium atoms and the rest is U-238)...

since m=-l...+l we have 2l+1, m values. how do i know which integers i will have for l in this case, would it be just 0 and 1? Since the hamiltonian has degeneracy, how can i find what else i need to specify a complete set of commuting observables?

Consider a spin-less particle, mass M, confined on a sphere radius 1. It can move freely on the surface but is always at radius 1. 1. Write the Hamiltonian H=\frac{L_{op}^2}{2M} in spherical polar coords. 2. Write the energy eigenvalues, specify degeneracy of each state. (not you can omit r...

if you take two steps forward and one step back you have gone one step forward. This guy has gone 65km east then back 45km, so he has gone 65km-45km

Homework Statement Calculate the expectation values of x, x^2 for a particle in a one dimensional box in state \Psi_n Homework Equations \Psi_n = \sqrt{\frac{2}{a}}sin(\frac{n\pi x}{a}) The Attempt at a Solution i formed the integral \int_{-\infty}^{+\infty}\Psi ^2 x dx as the...

so what youre saying is to form the integral f(y)=\int 2x-x^2 dx? if its outside the interval do i let the limits be (-infinity to 0) and (2 to infinity) for inside 0 to 2 but at the endpoints what are the limits?

let f(y)=\int_0^2 \delta(y-x(2-x))dx. Find f(y) and plot it from -2 to 2. I know how to calculate \delta (g(x)) but i am not sure how to treat it with the y. I thought possibly to solve the quadratic in the delta function to find what x will equal for the roots in terms of y and got...

Just studying for an exam and the following question appeared on the sample exam: Given the force: F=-c(x-y)^2(\hat{i}-\hat{j}) where i and j are the unit vectors. a) Show the force is conservative b) Show the potential energy is given by V(x,y) = \frac{c}{3(x-y)^3)} assuming V(0,0) =0...

Today the professor wrote down the following for use in an integral: \frac{1}{2}cos(2\theta)=sin\theta cos\theta i am not sure is this is correct. i have tried to prove this and cannot, i have also not found it in an table of trig identities. Is this a valid identity? i am not sure since...

hello, i just wish to check that i have done the following correctly: 1. Evaluate \int d\overarrow{r} (r is a vector, and its a closed integral) around the circle C represented by x^2 + y^2 = a^2 what i did here was switch to polars and called d\overarrow{r} ->rd\theta then i noted that...

but for what you propose then du=2(x-xo)dx, which cannot be put into the integral like this...

so the substitution i proposed is the correct one to make?

i factored the exponent to be -(x-x0)^2 but what is the substitution to make? u = x-xo? this does not help because of the x...