Recent content by jmher0403

I don't have access to computer right now so here's the link to my working http://tinypic.com/r/2nhowoo/5 . According to the answer I shouldn't have (s/RC) term on the numerator, otherwise all good. Can anyone please point out where i have gone wrong?

Ok..if I try doing chain rule ∂y/∂x = ∂f/∂x * ∂y/∂f right? I have only dealt with questions where the function is actually given.. like the terms are defined something like y(x,t) = ax + xt + xt^2 blah blah then I would keep one of the x and t as a constant and differentiate. but I am...

I'm getting similar answer... ∂y/∂x = lim (x+h-ct-x+ct)/h = lim h/h = lim 1 =1 ∂y/∂t = lim (x-ct+h-x+ct)/h = lim 1 = 1 am i on the right track?

Can please give me some directions as to how to start on it? I am really confused...

Homework Statement y(x,t) = f(x-ct) verify this solution satisfies equation ∂y2/∂x2 = 1/c2*∂y2/∂t2 Homework Equations The Attempt at a Solution ∂y/∂x = ∂f/∂x = 1 ∂y2/∂x2 = 0 ∂y/∂t = ∂f/∂t = -c ∂y2/∂t2 = 0 Is this the way to do it?

Homework Statement f(x) = 1, 0<x<1 Extend f(x) t generate an even function P(x) and find Fourier coefficients Homework Equations an = 2/T ∫ P(x)cos(2nx/T) dx The Attempt at a Solution P(x) = 1, -1<x<1 0, -2<x<-1 , 1<x<2 even function so b0 = 0 Average of P(x)...

Homework Statement The air is at 50% humidity and the temperature of the surface of the ocean and the air is 20degrees C. What are the two critical processes that must occur to ensure there is continued evaporation in the absence of external energy sources? Homework Equations Relative...

Homework Statement F(w) = a / [1 - be^(-jwT)] where a and b are constants Find the magnitude of this filter response Homework Equations e^(-jX) = cos(X) - isin(X) The Attempt at a Solution the answer is a/ √[1-2bcos(wT) + b^2*cos^2(2wT)] but I can't seem to get rid of...

I figured out the frequencies that give zero are 0 and fN any hints on how to find the frequency that gives maximum response?/?

Homework Statement A digital filter is defined by yn = xn - n-2 - 0.81*yn-2. At what frequency, in terms of fNyquist, is the filter response zero and maximum? Homework Equations H(z) = Y(z)/X(z) The Attempt at a Solution I figured out that H(z) = [z2-1] /[z2 +0.81] and...

Rc= 5k ohm R1=100k ohm R2= 27k ohm Re=3.3k ohm beta=200 Vs=12.7V Vce= 0.3V at saturation With no signal applied, dc voltage btw collector ans ground measured as 7.7V Calculate the transistors base,emitter,collector currents Ive only come across problems with transistor in linear...

Homework Statement Taylor series of f(x)=ln(x+1) centred at 2 Homework Equations from 0 to infinity ∑ cn(x-a)n cn = f(n)(a)/n! The Attempt at a Solution f(x) = ln(1+x) f'(x) = 1/(1+x) f''(x) = -1/(1+x)2 f'''(x) = 2/(1+x)3 f''''(x) = -6/(1+x)4f(2) = ln(3) = 1.0986 f'(2) = 1/3 f''(2) =...

Thank you :)

NZ/Aus too requires masters degree and it is included in the clinical placement programme. I can still apply after postgraduate studies if I don't get it in the first round, but with lack of openings for the unexperienced, I thought masters in medical physics would not be worth it and was...

Hey guys, Im 2nd year undergrad majoring in Medical Physics and Imaging Tech. This week we got a presentation from the graduates of my course and was told that the chance of getting into the field is very very small, specifically the hospital physicst and actually advised us to think of other...