Recent content by DIrtyPio

Ok, I have some circuits and I don't know if I resolved the problems right so here are they: and I have another question: files 1. The voltage of an ideal a.c. source has the expression: ug = 100 *20.5sin (2*104 ∏*t +∏/3) V. 1.1. Find the value of the frequency and the value of the voltage...

Hi, I have a simple question: if I have a circuit with a capacitor, how do I calculate the voltage on the capacitor in function of time, I mean I know that tau(τ)=RC and there is the general formula X(t)=X(0)+[X(0)-X(∞)]-t/τ. So here comes my question should I consider the capacitor as the load...

Thank you very much.

-<H*δ,φ'>=-<δ,<H,φ'>> this is the definition of the convolution product in a distribution, as I know( www.emis.de/journals/NSJOM/Papers/23_1/NSJOM_23_1_013_027.pdf ). But you are talking abot F[δ] which I did not write anywhere. As you see my problem is that i can't compute <δ,<T1,φ>> , where as...

So I have some problems and I tried to resolve them, I also have the results so I can check them but I'm curious if I made them good. P1: (H*δ)'=?, where H is the heavisede distrobution and δ is diracs distributin. So I tried liek this : <(H*δ)',φ>=-<H*δ,φ'>=-<δ,<H,φ'>>, <H,φ'>=∫φ'dx=φ =>...

It is arctg θ

θ is 90 degrees minus the slope.

Yes... I've forgot about it, it accelerates with (G*cosθ-µk*G*sinθ)/m

So it accelerates with g*cosθ until it reaches the end of the slope.

Ok, I figured out how should I do this integral. I made a varialbe change x*y=u and x/y=v so I found my new integral and the limits like this are pretty simple. And in the previous method I shuld have used 3 integrals devideing the main integral to 3 smaller ones which are orthogonal with...

I ran into this question on an exam and if I remember correctly it did not said that I shold care about static and kinetic friction coefficients. So I don't know the answer to this question and I think I don't either know how to solve it, so if you could tell me how to solve this problem that...

The body starts to move when MU*m*g*cos(theta) <= m*g*sin (theta). I suppose that the body will be accelerateing but I'm not sure. Oh, and by the way, can you tell me why can't I use properly the advanced editing tools, even though if I leave them homework they automatically are put there it...

Hi, I am doing my homework, but the book does not have any solutions so I can not verify my results. i wouldn't be a problem if I were 100% sure that I'm doing it right, but since I had some problems calculateing the limits of integration I'll ask you folks to help me! SO here is my first...

Sorry, indeed I figured out how should I find the other integral, but actually I'm having problems integrateing F'(t).

Hi. I have a question. A body is lying on a slope. We increase the slope until the body starts to move. So my question is, if we stop increasing the slope when the body starts to move will the body maintain constant speed going down until reaches the bottom, or will it accelerate?