I saw them but there is one problem, they require a $20 minimum order but don't carry anything else I need for the project, but maybe i will call them and see what they say. Thanks
Hey guys I am trying to build the circuit from the following link, but I have been unable to find the three siren sound generator UM3561 and I was wondering whether anyone knew of where i could purchase one or what substitute i could use. I have searched all over the internet with no luck...
I think that i figured it out... I found the residue at (im) as this is the only residue that contributes to the integral (-im is not in the contour and R(0)=0). Does this sound right? Thanks
I was w=kind of confused as of how to go about solving this integeal using complex methods. it is the Integral from 0 to infinity of{dx((x^2)(Sin[xr])}/[((x^2)+(m^2))x*r] where m and r are real variables. I tried to choose a half "donut" in the upper part of the plane with radii or p and R...
Well, that did not work either so I will link the relationship I am trying to prove. It is the dirac delta scaling relationship at the bottom of the page of this link.
https://www.physicsforums.com/showthread.php?t=122783&highlight=dirac+delta+scaling
I am not too good with this latex stuff so let me try again...
\\int^{\\infty}_{-\\infty} f(x) \\delta \\left( g \\left( x \\right) \\right) dx = \\int^{\\infty}_{-\\infty} f(x) \\sum_{i} \\frac{\\delta \\left( x - x_{i} \\right)}{\\left| g' \\left( x_{i} \\right) \\right|} dx
I cannot think of how to go about proving this relationship and was wondering if any of you could help me
</font>\\int^{\\infty}_{-\\infty} f(x) \\delta \\left( g \\left( x \\right) \\right) dx = \\int^{\\infty}_{-\\infty} f(x) \\sum_{i} \\frac{\\delta \\left( x - x_{i} \\right)}{\\left| g'...
I was told in one of my physics classes that one of the reasons that cell phones actually work inside of a conductor (metal box) is because they utilize AC.