Recent content by 1f5

No, my professor gave me only the Fourier coefficients formulas, with these formulas i obtained those equations from the previous post. I solved a previous exercise with Excel (there were only 3 equations, instead of 11). Thanks in advance.

Homework Statement Hello everyone. I'm trying to solve a non linear 11x11 system. (for eliminate harmonics in a power inversor) I used Excel's Solver but it didn't work. (Solver couldn't solve the system). Then I found fsolve (a scilab function) but again it didn't work I will attach...

1. Homework Statement The problem says: For the next circuit obtain a particular solution for R3 when v1=v2=l1=l2=0 at t=0. vs= cos(wt) dc source= 10v *R3 is the 1k resistor. http://postimage.org/image/fxtu2blaf/ 2. Homework Equations Kirchoff current law...

You missed the st in the exponent of the laplace's kernel

Yes, you were right.

RCC picture upload picture Later i discovered that I have a mistake with voltage law, then i resolve the DE and had Ce^(-t/r) After that i make a sim, and see that the current in t=0 is -1A and tends to zero when t goes to infinity. So the function must be -e^(-t). (r1=equals 1). I...

Homework Statement There's a circuit, with a capacitor C1, Resistor R1, and another capacitor C2. In t=0 ; C1 is charged with 2 V and C2 with 1 V The value of resistor is 1 ohm, C1= 1 F C2=0.5 F Homework Equations Kirchoff voltage law. Capacitor voltage at any given time...

Well, after a few hours I have noticed my mistake.

Homework Statement In t=0 a car is free from it's chain and can fall freely through a inclined plane (10 degrees) rear wheels weight 500 lb each one and have an diameter of eight feet. Front wheel weights 800 lb and have a radius of 2 feet. The body of vehicle weights 9000 lb. Assume that...