Recent content by Nacho Verdugo

No thanks! I just made a mistake editing this.

Homework Statement This problem belongs to the Intermediate Physics for Medicine and Biology, Hobbie Chapter 4. The heat flow equation in one dimension $$ j_H=-\kappa \partial_x T $$ where ## \kappa ## is the termal conductivity in ## Wm^{-1}K^{-1}##. One often finds an equation for the...

thank you very much!:biggrin:

yes! with $$F(r_0)=0$$ I can actually find $$r_0$$ and later evaluate that value in the integral.

I thought about that, but the statement of the problem I'm trying to solve just says to integrate in one dimesion. I'll try again.

I don't know :C I took a while to answer cause of that. I think it should be at a huge distance, right?

1 dimension!

I'm trying to prove that the wave function of Hydrogen for the fundamental state is normalized: $$ \Psi_{1s}(r)=\frac{1}{\sqrt{\pi a^3}}e^{-\frac{r}{a}} $$ What I tried is this: $$ I= \int_{-\infty}^{\infty} | \Psi^2(x) | dx = 1$$ $$ \int_{-\infty}^{\infty} \frac{1}{\pi...

I guess it is zero right? I that way it is in equilibrium.

The statement of this problems is: In diatomic molecules, the constituent atoms exert attractive forces between themselves at great distances and repulsive forces at short distances. For many molecules the Lennard-Jones law is a good approximation for the modulus of these forces. $$ F(r)=F_0...

Homework Statement I need to calculate the work donde by the Lennard-Jones Law, considering: F(r)=F0 [2(σ/r)13-(σ/r)7] when approximating two atoms from infinity to the equilibrium position between both atoms Homework Equations First thing I don't know how to calculate is the equilibrium...

Hi! So, I just had second thoughts about what I post. The idea is to conserve the energy, right? So the energy in A is : mg(d+x)sinβ and the energy in B is :½kx^2. Conserving the energy I obtain: mg(d+x)sinβ=½kx^2 ⇒ mgdsinβ + mgxsinβ = ½kx^2 ⇒ mdgsinβ = ½kx^2 - mgxsinβ ⇒ d=...

Homework Statement A body with mass m start from repose and slide along a plane without friction. The plane forms an angle with the horizontal. After sliding a distance d unknown, the mass touches the extremity of a spring non compressed and non stretched with no mass. The mass slides a...