Recent content by mathrocks

this is an ODE. FS stands for fundamental system.

Hey guys, I'm stuck on this problem! I have no idea how to even go about solving it. I tried searching the net for D'Alembert's principle but nothing was helpful. Any suggestions on how to go about solving it will be much appreciated! Find with the aid of D’Alembert’s reduction principle the...

Yes, that's correct. So if I do the following seconds=ticks*2 minutes=seconds/60 hours=minutes/60 how do I then use those values to display the correct hours, minutes? for example I have 3602 seconds, that will be 60.0333333 minutes, and 1.00055556 hours

Ok, I have to write a program that displays an arbitary time. I'm given 2 ticks every 1 second. So I'm suppose to use that to display the Hour, minute and seconds...im not sure where to start on how to create this. I know to find seconds I just do ticks/2, but for minutes and hours I'm confused...

Can someone please tell my what the inverse Fourier transform of t*u(t) is?? I've been looking at tables but there isn't anything for just t...

See, I haven't learned the method of residues...This problem is for my signals and systems class and I'm only allowed to use inverse laplace methods.

Actually I just realized my Y(s)=s^2 / [(s^2+4)^2*(s^2+2)^2] so s=2i, s=-2i, s=sqrt(2)i, s=-sqrt(2)i Thus, resulting in no repeating roots. But I still have problems coming up with the coefficients. I think you setup the partial fraction like this: As+2B/(s^2+4)^2 +...

I have to find the laplace inverse of a function y(s) which has repeated complex roots. Y(s)=s^2 / (s^2+4)^2 so s=2i, s=2i, s=-2i, s=-2i. My partial fraction is as follows: A/(s-2i) + B/(s-2i)^2 + C/(s+2j) + D/(s+2j)^2 I use the standard method for finding regular repeated roots but...

I'm currently majoring in Electrical engineering as I stated above...

I'm currently in my third year of college majoring in electrical engineering. I'm just now starting to worry about the different kind of jobs that are available out there. I was hoping some electrical engineers can describe their typical days at work. I just have no clue to what exactly a...

So for the problem: g(t)=t^2 * sin(3t) * x(t) How would you go about transforming that? This is my first encounter of 3 terms...

Ok, I'm starting to understand Laplace a lot better now. But I have, hopefully, my last question. If you have a function like g(t)=t^2 * sin(3t) * x(t) where x(t) has an already defined laplace transform. do you actually include x(t) in your laplace transformation? Because when I see...

What happens to u(2t-5) though? Do you actually take the Laplace transform of that?

Ok, this is the question: Assume that the Laplace transform of x(t) is given as X(s)=s / (2s^(2) + 1). Determine the Laplace transform of the following function. g(t)=x(2t-5)u(2t-5) How do I use the transform they have given me to solve this...I guess my major problem lies using time...

Ok, so X(s) is the Laplace transform of the function x(t) and S(s) is the Laplace transform of s(t)=t*e^(-2t) u(t)? So is H(s) the response of the input? I don't see when you would do inverse Laplace... Sorry, but this stuff is 100% new to me, we definitely didn't talk about this yet. But it...