I had a question about 2 cases
we have a cilinder with 2 Ideal Gases. The volume, mass and the number of particles
is given. So We call it V(1),M(1),N(1) for the first gas and V(2),M(2),N(2) for
the second gas. The two gases are separated by a movable wall
Now what is the Ratio V(1)/V(2)...
Homework Statement
I had two questions
1. Why does storing data creates entropy?
2. What is meant with disposing entropy
Homework Equations
The Attempt at a Solution
1. I thought because the multiplicity of the system increases, because the information put in the system...
I want to calculate the integral of a sphere with radius a using double integrals
I have z^2+y^2+x^2=a and I plug this in my equation and integrate in polar coördinates
Now i have \int^{2\pi}_{0} \int ^{a}_{0} \sqrt{(a-r^{2})} rdrd\theta
But why do I need to multiply my integral...
\left[L_{x},L_{y}\right]=\left[yp_{z}-zp_{y},zp_{x}-xp_{z}\right]
=\left[yp_{z},zp_{x}\right]-\left[zp_{y},zp_{x}\right]-\left[yp_{z},xp_{z}\right]+\left[zp_{y},xp_{z}\right]
How next?
My book is not of much help
I Tried
\left[A,BC\right]=\left[A,B\right]C+B\left[A,C\right]
But...
Homework Statement
1.Show that
PV^Y is a constant for adiabatic,quassistatic expansion of a photongas and determine Y
2. Show the same for full degenerate gas of fermions at T=0
Homework Equations
The Attempt at a Solution
Plz help thx
I am studying Quantummechanics, but I don't see how Fourriertransforms in quantum mechanics work
I want to know how I can Fourrier Transform the Hydr. ground state, so the transform of
\phi\left(r\right)=\left(\frac{1}{\pi a_{0}^3}\right)^\frac{1}{2} e^\left-(\frac{r}{a_{0}}\right)...
Can someone explain me what a zener diode does? I don't know what the turn on and breakdown voltage mean, and what forward and reverse biased means.
And what the difference between a zener and a normal diode is?
Thx very much
I had a question
I sometimes don't know If resistors are in serie or parallel
Like in the image I posted
is it right that 1 is parallel with 2, 2 is parallel with 3, 3 parallel with 4, 4 parallel with 5 and 5 par with 6?
How can I make one resistor out of this 7 resistors, or from 1 till 6...
Can someone help me detemine The thevenin Voltage, the thevenin resistance and the Norton current of this circuit
I can't solve it cause it has two current sources
I have uploaded the picture
Thank you