Recent content by plexus0208

Homework Statement If a signal x(t) is an even function, how do I show that its Laplace transform X(s) must be even as well? Homework Equations X(s) = Integral(-inf,inf) of x(t)*e^-st dt The Attempt at a Solution I can show this for specific functions x(t), but how would I show this in...

I want to plot r vs. Total_thrust for all iterations on a single graph. I'm using 'hold on;' but it is still only plotting the last iteration. Help? -------------------MATLAB CODE---------------------------------- Thrust = (mdot19*c19 + mdot9*c9)/gc; %Note: This is for one engine...

I get the following error with my MATLAB code. Can anyone help me fix it? I don't see what is wrong. ---------------------------------------------------------------- ? Input argument "S" is undefined. Error in ==> RCPrototype at 11 Wpay = Tmax/((CDA0/S)/CL + cd/CL + CL/(pi*AR)) -...

Homework Statement Find the unit impulse response for the operator D^4 + I, using the Laplace transform. Homework Equations The Attempt at a Solution w^(4) + w = δ(t) s^4W + W = 1 W = 1 / (s^4 +1) Now, I need to find the inverse laplace transform of W. But I don't know how to simplify W...

polyA tail?

Homework Statement After isolating the same mRNA transcripts of the same gene, why are some transcripts bigger than others? Homework Equations The Attempt at a Solution

How does taking the multiplicative inverse (reciprocal) of a complex number change its magnitude and argument?

Homework Statement I have a problem that involves a plasmid DNA. The problem gives a plasmid diagram with the restriction sites and specifically tells me which restriction site the gene of interest would go. However, the restriction site is shown to be overlapping with the AmpR gene. Wouldn't...

http://vohweb.chem.ucla.edu/voh/classes%5Cfall07%5C277ID171%5C18-ElectronRule.pdf I found what I needed.

Cr(CO)6 Fe(CO)5 Ni(CO)4 Is there more back-donation (from the CO) going up OR down the above column? I always get this mixed up.

Please see title

How do I find the total electron count in a transition metal complex? For example, something simple like W(CO)6 or even more complicated like RuH(Cl)(PPh3)3? (Note: I don't mean "d electron count" [which I know how to find], I mean "total electron count.")

@ideasrule: Sorry, ignore the "z." @HallsofIvy: Thanks. And yes, that's how I learned it. Also, once I find the critical points, do I just plug them back into the original function I want to extremize to see if it's a max or min?

Homework Statement Use the Lagrange Multiplier method to find the maximum and minimum values of x2 − 2xy + 7y2 on the ellipse x2 + 4y2 = 1. Homework Equations Lagrange multiplier method The Attempt at a Solution L(x,y,z,λ) = x2 − 2xy + 7y2 - λ(x2 + 4y2 - 1) Find Lx, Ly, Lλ Then, solve for x...

Lxx = 2 - 2λ Lyy = 2 Lxy = 0 if λ = 1, then discriminant = LxxLyy - Lxy2 = 0...