As show below the Fourier Transform of Naiver-Stokes equation. I wonder if the pressure should be in the Fourier transform? In the below transformation there is no pressure.
N-S
\frac{\partial\vec{u}}{\partial t}\+(\vec{u}\bullet\nabla)\vec{u}=-\frac{\nabla P}{\rho}+\nu\nabla^{2}
N-S in...
How can one say what color a matter have by using optical reflectivity? I know how to calculate the plasmon energy and out of that can one can get the wavelength. So can one get the color of the wavelength or?
Thanks
Im supposed to show that a ligth beam traveling in a vertical plane satisfies
d^2z/dx^2=1/n(z) dn/dz[1+(dz/dx)^2]. Using calculus of variations to minimize the total time. The vertical plane got a refracting index n=n(z) there z is the vertical position and z=z(x) there x is the horisontal...
I got a problem in quantum physics that i have come to a differential equation but I don't see how to solve it, its on the form
F''(x)+(Cx^2+D)F(x)=0.
How should I solve it?
Thanks
I understand that I have confused you. My thought was that I must have misunderstands something because of the explanations that stated above. The case that I did think of was an infinite potential barrier with a width, but if the wavefunction is zero at the boundary than the momentum can’t be...
Of course that can't be an infinite barrier. So the same particle as above, but the difference is that the potential is finite. How can the momentum be conserved?
I’m think of a particle, with momentum p, that travels in a region there the potential is zero and comes to a place there it exist an infinite potential barrier and travels through the region and comes to a region there the potential is again zero. How can the particle after the barrier have the...
I got a question about an infinite potential barrier. If a particle with a momentum p travell through an infinite potential barrier, how can the energy be conserved, thus how can the particle have the same momentum after passing the barrier? Does there exists any real life example?
Homework Statement
Determine the magnetic flux density at a point on the axis of a solenoid with radius b and length L, and with a current I in its N turns of closely wound coil.
Homework Equations
Biot-Savart law: myI/(4pi)integral(dlcross er/R^2) there er is the unit vector in...
Sometimes there exists students solutions manual and it can help to check in them to get some ideas to start. Most of the times i ask my teacher but it's weekend now so i can't contact him.
Homework Statement
The upper and the lower conducting plates of a large parallel-plate capacitor are separated by a distance d and maintained at potentials V0 and 0, respectively. A dielectric slab bof dielectric constant 6.0 and uniform thickness 0.8d is placed over the lower plate. Assuming...
Does anyone know where to find a solutions manual to "Field and Wave Electromagnetics" written by David K. Cheng? If you know you can post it here or send me a email (asa_1986@spray.se). Thanks