Recent content by zonedestruct

someone please give me some hints

Homework Statement How can i find the magnitude spectra of 2sin(4000*pi*t)*sin(46000*pi*t) The Attempt at a Solution im not sure how to go about this question, can someone please give me some help on what i should do. I know that for a square wave i can find the Fourier series...

bro its better if you do currents coming out of a node equals zero. So these are the two equations you will end up with: first let's do the equation for node v2: (v2-0)/4 + (-3) + (-6) + (v2 - v1)/2 = 0 and then the equation for node v1: (v1-0)/5 + 6 + (v1-0)/10 + (v1-v2)/2 = 0 now you have 2...

I don't think the homework helpers are going to help you bro cause you didnt try doing it yourself

Homework Statement I am given the transfer function H(s) = 10/(s(s^2 + 80s +400)) where s = jω [j is the imaginary unit i] and I am trying to get it into its magnitude and phase components. The Attempt at a Solution I rearranged it to 1/(40jω(1+ 4jω/20 + (jω/20)^2)) which is the standard...

thanks jackmell i really like how you split it up to a quarter and multiplied by 4 to take advantage of the symmetry. NOw the integral is not as complicated as the one i initially had when i went from -(√(1-x^2))/2 <= y <= (√(1-x^2))/2

is the limits for y: 0<= y < = (√(1-x^2))/2 ?? and then for x it is 0<=x<=1

Homework Statement Find the volume of the solid region E bounded by the paraboloids z = 1+x^2+y^2 and z = 4 - 2x^2 - 11y^2 The Attempt at a Solution i set up a triple integral using Cartesian coordinates but was unable to solve it because the limits of integration where very...

isnt the velocity at all point on the string always going to be 2 do then partialf(x,t)/partial(t) = 2?? what would at least one of them be?

I think the boundary conditions are: f(0,t) = 0 and f(5,t)=0 but I am not sure about the initial conditions can you please tell me what they would be? would one of them possibly be df(x,t)/dt = 2?

Consider a string of length 5 which is fixed at its ends at x = 0 and x = 5. The speed of waves along the string is v = 2 and the displacement of points on a string is defined by the function f(x,t). At the initial time the string is pulled into the shape of a triangle, defined by f(x,0) =...

they say that time must have had a start cause if time has been infinitely long then everything that should have happened would have already happened. well i think that time is infinite and there was no start to time therefore we have all already lived our lives but trillions of years ago and at...