Recent content by sai2020

Well there was this '2500 solved problems' series book. The Schuam's outline is quite nice too. I just used them from the library. Only some questions are relevant to us. The rest are engineering stuff. Also James Lighthill's 'Informal Introduction to Fluid Mechanics' helped..

Hi, I'm taking a Fluid Mechanics course. The lecturer is very closely (letter to letter) following the book by Kundu and Cohen (https://www.amazon.com/dp/0123737354/?tag=pfamazon01-20). I think K&C has a bunch of isolated derivations with no examples or solved problems. The 'examples' they...

We will not get an interference right? Why? Because the electron interacts with the system? Or the "measurement" forces the wave function to collapse? What if we put a black cloth on the chamber and only see the photographic film? What if we place the chamber before the slits. What if we bring...

yeah that would be dx = (1-u^2) du

Hi Tim! :) Well this is a part of a bigger problem and I need to find g(u) as well. Here's what I did Sorry I made a mistake. Is it exp(\frac{-1}{2} (log_e \frac{1+u}{1-u})^2) How do I simplify further? Thanks a lot :)

I did that and I ended up with \int^1_{-1} log_e(\frac{1+u}{1-u}). Is that correct?

The question is to convert the infinity limits of the integral \int^\infty_{-\infty} e^{{-x}^2} dx to finite limits \int^{u_a}_{u_b} g(u) du using the substitution u = tanh(x). How do I go about it?

Nitric Oxide is slightly polar. But is it ferroelectric? Sai

OH! My definition of B was wrong.. Thanks a lot..

Thanks a lot. It's a beautiful book

The question: In 1900, Planck used an abstract model consisting of harmonic oscillators with various frequency. Derive an average energy \bar{\epsilon} of a single oscillator where the oscillators of frequency f can only take on discrete energies \epsilon_{n} = nhf, n=0, 1, 2, ... and the...

It comes from L = 30*10^-2 = 0.3m V = r^2(2*pi*L) = r^2(3*pi/5) The *Hint* says the initial volume is 1mm^3. and I think the glass expansion can be neglected cos this is an introductory thermal course and this is the first tutorial. Can you please tell me how you got to that.

The question is Mercury has a thermal expansion coefficient (volume) of about 1/5500 perKelvin. Estimate the inner diameter of the thermometer tube. Here's my attempt. L \approx 30cm V = 2*pi*r^2*L Change in volume at 0 C and 110 C approximately equal to V => 110/5500 = r^2(3*pi/5)...

Um could you give me the link. I'm new

see this thread physicsforums.com/showthread.php?t=142736 The link there id dead. Can someone give me a new link? I'd like to have R. Shankar's QM book too.. Please help..