Recent content by kakarot1905

Hi Does anybody know any free peer review services for research papers? Does physical review letters have a free peer review service? Thanks

Hi I would like publish my paper on Physical Review Letters. Publishing is free of cost on PRL as long as I don't want it open access & give them an electronic copy (such as pdfTex, Word), right? Is this the same for most journals? Thanks

Ok, is there any other possible way, the viscous damping coefficient [or the damping nature of the surface] affect the force exerted on the particle during its collision

Thanks :) One last question: The force exerted by the plate at point of collision... Is is it ok to say this force is damped by a factor (1–(c))?

Thanks for all the replies xts.. Do you know any other means of measuring the damping force [by the surface on the particle] other than using velocity?

Hi Suppose a particle is bouncing on a surface with a viscous damping coefficient... Question 1: The frictional force = -c(viscous damping coefficient)*v(velocity of the particle) But what is the direction of this force? Perpendicular [down] to surface? So if the surface is tilted at an...

Thanks for the suggestion tiny tim. I got my plotting software [mathematica] to automatically calculate the gradient of the z function so I don't have to worry about taking dz/dx... This is the code i used: [mathematica] (gradf[x_, y_, t_] = {D[z[x, y, t], x], D[z[x, y, t], y]...

Thanks tiny-tim I can calculate: (dz/dx) = (k\pia)/Lx sin(\omegat) cos (k\pix)/Lx and (dz/dy) = (l\pib)/Ly sin(\omegat) cos (l\piy)/Ly But what is dz/dt? This is why I need to calculate the slope of the surface (z): I am trying to calculate the weight [W] of a particle on...

Hi z(x,y,t)=a sin(ωt) sin(k/Lx*pi*x) sin(l/Ly*pi*y) a = Amplitude ω = Frequency k and l are constants Lx = Length in x direction Ly = Length in y direction How can I find [using an equation] the slope of the surface [ie the gradient] at any given point on the surface? I know...

I realized that electrons can be described as quantum mechanical waves... I was assuming that electrons are point-like particles stuck in the nodal region of some kind of force field created by the nucleus - I was wrong.

This article might help what I am trying to describe: http://en.wikipedia.org/wiki/Node_(physics)" //Read the chemistry bit

I was assuming that atomic orbitals to be some kind of spherical waves.. Nodes and Antinodes: http://www.physicsclassroom.com/class/waves/h4.gif

Hi Thinking of the structure of an atom in terms of spherical harmonics; the mathematics of which is the base of schrodinger's wave equation. If its possible to make the electrons gather at the antinodes, what are the possible applications/uses of this? (Simply a new area for research? or...

Hi How can I calculate the Coulomb friction load torque of a rolling spear on a surface with a coulomb friction coefficient of 0.1? Other details: Mass: 1Kg Radius: 0.1m Thanks in advance