Recent content by SchrodingersMu

Homework Statement Homework Equations Given above The Attempt at a Solution I used polyfit, but my mean swuare errors are way bigger than they should be- don't see what is wrong with my code! My code is ugly btw, my apologies. %Hw 7 clear all close all y3=[1960; 1965; 1970; 1975; 1980...

Homework Statement Homework Equations A=LU, U^-1 * L^-1= A^-1 , U^-1 * L^-1 * U^-1 * L^-1 = A^-2, The Attempt at a Solution I used MATLAB and the relations: U^-1 * L^-1= A^-1 , U^-1 * L^-1 * U^-1 * L^-1 = A^-2, to find a solution I found U^-1*L^-1 , let =B...

Hi all, I am to compute A = QR using the Modified Gram-Schmidt algorithm. I need to find the error using the one norm of : (Q transpose * Q) - I. Here is my code: %Modern Gram Schmidt p=zeros(5,5); e=zeros(5,5); g=zeros(5,5); for k=1:n; p(:,k)=(A(:,k)); end %j=k, i=u, r=g, q=e, v=p for...

I think this is an ionic case. Why would oxygen want to take a psoitive charge? Oxygen is super electronegative Thanks again

AH, nice! I don't get why "the charge on the nucleophile is taken by the oxygen" So the oxygen takes on the positive charge? I'm confused by that statement Thanks for help btw!

Sort of. I want to know which double bond(s) the polymerization will occur on, because we have both c=c and c=o

From my understanding, that will propagate the radical into the monomer, which then reacts with another double bond in another monomer. This leads to linking/ polymer chain lengthening

Hi! I recently did a lab where my group was to create a polymer via free-radical polymerization. We used acrylamide and potassium persulfate. We DID NOT use bis acrylamide crosslinker ( wasnt in our lab manual for some reason.) I cannot find any web resources that show how acrylamide...

Hi there, I am new to electron theory, and have a question regarding fermi energy. The book I am reading plots the Fermi energy distribuiton function vs Energy for T=0 ( upper right graph in pcture) and for T not equal to zero. The book says that, when T does not equal zero, the decrease in the...

Homework Statement A 10nC, 1µg particle is fired into a magnetic field as shown. Distances are in millimeters, time is in seconds. What is the strength of the field? (See my picture for additional information and my worked solution) Homework Equations f= mv^2 /r F(from B field) =...

Hi! I've had this question for awhile. I asked my ochem professor and he didn't know how to answer it. My physics professor answered it but still left me with questions. In physics, the force of two charged particles is shows by Coulombs eq: F= k* q1 * q2/ r^2. My question is, why do...

I did this one by accident, so I'll make a cat to not waste the post =^O_O^=

Sorry about the typos guys! So, we can solve for t, even though the velocity is mostly in the x direction, because the time is the same for the x and y components of motion, right? ALso, eq(1) would have originally been y= initial y position + velocity in y * time + (acceleration stuff), but...

In an inkjet printer, letters are built up by squirting drops of ink at the paper from a rapidly moving nozzle. The ink drops, which have a mass of 1.3 10-8 g each, leave the nozzle and travel toward the paper at 21 m/s, passing through a charging unit that gives each drop a positive charge q by...