Hello,
I'm having trouble imagining a specific portion of a homework problem.
Heres the problem:
"Consider a ligand stabilized gold nanoparticle. The gold nanoparticle itself can be
considered as “box” and the ligands as the “walls”. If the de Broglie wavelength
of the gold...
Homework Statement
A voltmeter will be used to measure the voltage vA in the circuit below. Assume that the voltmeter has a resistance of 100[ohms] and a full-scale voltage of 20[V].
a) What will the voltmeter read?
b) What is the percentage error in making this reading?
Homework...
Homework Statement
For the following data, find the least squares fit of the given form
x=1,2,3,4,6
y=14,10,8,6,5
h(x)=ae^x+be^(-x)
Homework Equations
The Attempt at a Solution
So I tried to linearize the equation by taking the natural log of everything...
Hey guys,
I have a quick question about adding a vector to a system of differential equations.
Like U'(t)= Ax+V
Say A is a 2x2 matrix and V is a 2x1 vector.
Can you all explain how I could handle that V vector? Should somehow include it into A?
Hi everyone!
Homework Statement
Find the inverse of the following using row reduction. If it does not exist, indicate clearly why.
3, 0, 6;
1, -2, x;
1, 2, 1;
2. The attempt at a solution
I started by augmenting with a 3 by 3 Identity matrix:
3, 0, 6, 1, 0...
Homework Statement
Hey guys, My prof asked us to find the radius of a cylinder within a cylindrical capacitor with 2 radii a and b. I know we use the Capacitance formula for a cylinder but I cant seem to get pass the q that shows up when I plug it into the 1/2 c*V^2
EDIT: He wants us to find a...
Homework Statement
Give a least squares solution to Ax=C and give the residual error
A=
-1, 1, 2;
1, -1, 0;
1, -1, 2;
C=
-1;
-1;
2;
Homework Equations
Residual Error= |Ax-C|
The Attempt at a Solution
I have done an RREF on the Transpose of A times A...
Homework Statement
One mole of an ideal diatomic gas undergoes a transition from. a to c along the diagonal path
What is the change in internal energy?
Homework Equations
The Attempt at a Solution
I've tried to use the two other paths since the internal energy is the same both...
Homework Statement
When force F(force is at an angle Theda) is not too large, box m1(smaller top box) moves with box m2(bigger bottom box) without sliding. Find the magnitude of the acceleration of the two blocks.(see attachment)
Homework Equations
F=ma
The Attempt at a Solution...
Limit with integrel
Homework Statement
Homework Equations
The Attempt at a Solution
I tried to take
x=ln(u)
dx=du/u
and solve the integral but I keep getting stuck at the int(cos(u)/u.)
Can anyone help me out here?
Homework Statement
Evaluate the Definite Integral
Integral[0,1] Ln(x^2+1) dx
Homework Equations
The Attempt at a Solution
So far I have done the first part,
U= Ln (x^2+1) Du= 2x/(x^2+1)dx
Dv= 1 dx V=x
x* Ln(x^2+1)- Integral [0,1] (2x^2/(x^2+1) dx
But I'm stuck...
Homework Statement
In an xray tube, a potential diff. of 70000v is applied across two electrodes. Electrons are emmited from cathode and acc. to anode, where x-rays are produced.
my question is if the photoelectric effect problems apply and how they apply.
(i.e use work function or E=hf)...