Recent content by Raze2dust

k..thanx for the info Horbacz ! :)

hmm...will moving this to advanced physics forum help?

hmm i guess too long for anyone to read fully.. suppose I have a point source at z=z0. What will be the equation of the Spherical wave which originates from there? I tried using \frac{(z-z0)}{r^{2}}e^{jkr} when is this valid?

Hi! Didnt know where to post this.. I was trying to fresnel propagate a spherical beam using the formula U(x,y)=\frac{e^{jkz}e^{\frac{jk(x^{2}+y^{2})}{2z}}}{j\lambda z}\int^{\infty}_{-\infty}\int^{\infty}_{-\infty}{U(\xi,\eta)e^{\frac{jk(\xi^{2}+\eta^{2})}{2z}}}e^{-j\frac{2\pi}{\lambda...

do previous 10-12 year problems...very helpful..

well, you are right =) So you are able to do it now?

1) depends on what you consider the direction of J. J is always the direction of the current... So J.da=J* da* cos(theta) will depend on the angle theta 2) its like gauss law..in gauss law..no matter how many charges are present outside, Electric Field on the surface depends on the charge...

Have you studied Gauss Law?? If yes you can just go through Amperes law in wikipedia it shouldn't be difficult.

I am guessing you have studied Youngs double slit experiment. This is very similar to that, but you have to use formula for destructive interference, since they have asked for the minima. Consider the two towers as sources and the road as the screen in youngs DS Expt...

Think about it this way...suppose both the blocks were stuck with glue..then your applied force will act on M=(m1+m2) right? And their accelaration will be (F/M)..and they'll move together. Now in this case consider only the top block.. its accelaration is F/M . So net force on it has to be...

in what form is the equation of line given? basically, find any line perpendicular to the given line(let perpendicular be p and given line be l) and take a point at a distance d from l, on p. Then write the general equation of any line thorough this point.. How easy or tough it is to do this...

y=any constant clearly doesn't satisfy (i) though y=0 does satisfy..i think the answer is y=0 not y=any constant when you do dy/y=dx, you are assuming that y is not equal to zero, because dy/y will not be defined for y=0 So, you have to consider the case y=0 separately

I haven't gone through your solution yet..but i think you don't need relative accelaration.. 100 kg block moves with a= +6 m/s^2 .. So you can easily calculate NET force on 100 kg block(say this is Fnet)..Block on the top moves with 4 m/s^2...and its mass is given so you can fin the net force...

I don't get it...why won't it conform?

assume it to be convex...so f is -120 cm i guess and M= -di/d0 is given you just have to use the above equations..get di in terms of d0 from M equation and put it into f equation you should get d0 to be negative..take its absolute value and add to di to get your answer..