Recent content by Oaxaca

I am attempting to normalize a wave function and need to integrate ##\int A^2*e^{(\lambda^2x^2)} dx## going from -inf to +inf. I tried to integrate this on Wolfram Alpha and this was the result. Upon integrating with the parameters the solution is as such. How does the erfi get removed? Do I...

I used kg and m/s for the electron, with momentum therefor being kg*m/s - and meters for my wavelength. Thanks for the response!

I am trying to find the DeBroglie wavelength of an electron moving at .8c. I have never learned special relativity but I believe the momentum is affected (mass change). I used the formula p= (mv)/(1-v^2/c^2) and got a momentum of p = 2.733 E-22 and a wavelength of lamda = 2.4149 E-12. Did I...

I got that much (I wrote "proceeding"- improper english on my part, but not a typo :wink:), but I was referring to line six as it seems they move the operator in between the two wave functions, when it was originally outside.

That makes a lot more sense, I didn't realize that the partial would act as an operator for the proceeding sin. However, how do you choose what to apply the operator to? Is that always the order of the formula?

I am rather new to the whole idea of complex conjugates and especially operators. I was trying to understand the solution to a problem I was doing, but the math is confusing me rather than the physics. In the last row of calculations, why does the sin change to a cos, and the d/dx change to...

Yeah that is why I put the infinite in quotes in the title, and that was what my train of thinking was that too much would slow it and but too little it can't hold.

I have been wondering this for a while. I know that tires using static friction due to reasons that I forget and therefor maintain good traction with asphalt. A few years ago family member said that if there was too much friction on a road then a car wouldn't move, but I argued that the car...