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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,839 
Hello Forum,
I have read an old, but good, thread about torque free rotation:
...

Apr2114 09:58 PM
Simon Bridge

1 
112 
Hello,
who can suggest me a book, or a PDF where i can find an introduction to Liouvillian operator in statistical...

Apr2114 05:35 PM
oliveriandrea

1 
170 
The title is enough

Apr2114 05:29 PM
mikeph

27 
515 
I see some papers mentioning the fluctuating hydrodynamics, which originates from the LandauLifshitz NavierStokes...

Apr2114 12:39 PM
Modeling

1 
434 
While playing around with some laser diodes I have at home ~(405, 550, 650 nm) I have noticed that the refracted...

Apr2114 11:44 AM
EE4life

10 
7,505 
Hello,
I`m a bit confused about PV work. Here is the situation I am facing.
δw = P dV and dw = F dx
δw is...

Apr2114 09:59 AM
ffia

61 
1,233 
Are there any good books to understand the BBKGY equations of kinetic theory?

Apr2114 02:47 AM
TSC

5 
192 
suppose the white light is incedent on a red glass. Behind the glass we see only red light and glass gets warmer.
...

Apr2014 10:40 PM
Goodver

3 
151 
I want to estimate how long it will take a person (I could specify their dimensions and density :P but maybe just take...

Apr2014 07:40 PM
Chestermiller

3 
153 
How do you use the virial theorem to derive the van der Waals equation of state?

Apr2014 01:17 PM
TSC

2 
147 
If someone were to send a probe out to interstellar space, bring it to a full stop and start rotating, would it...

Apr2014 12:29 PM
berkeman

6 
215 
Hi
I have been looking for some simple equations that describe the turning moments on the rotor as wind direction...

Apr2014 05:21 AM
james6008

2 
117 
What's the original definition of Ohm, ampere, volt and coulomb,
And which unit was defined according to the other...

Apr2014 04:00 AM
vanhees71

16 
334 
I am reading about the Asimov pendulum (see figure)
The aceleration in spherical coordinates is
##\vec{a} =( R...

Apr2014 01:39 AM
Simon Bridge

1 
151 
From the result of an experiment it seems to be that suction does indeed cause a force that causes a vacuum to move...

Apr1914 02:51 PM
D H

9 
337 
Looking for a way to increase magnetic forces in electrical devices, an option is reduce the air gap, but some times...

Apr1814 09:04 PM
Simon Bridge

5 
176 
Helloo,
I don't understand how one arrives at the conclusion that the hamiltonian is a generating function.
When...

Apr1814 08:27 PM
vasilis

4 
186 
Hey guys,
It has been a while since I've done anything to do with magnetism and was wondering if I covered one side...

Apr1814 06:33 PM
TumblingDice

1 
127 
If you'll allow me to disregard the effects of Strong Interaction, how would I calculate the Electromagnetic Force...

Apr1814 04:12 PM
Drakkith

4 
176 
Since Lagrangian is a function of q, q dot & time, then why in describing the Hamiltonian (H), L does not involve time...

Apr1814 01:57 PM
JonnyMaddox

7 
261 
I'm having a hard time understanding air flow caused by pressure differentials. Given the following contextual image,...

Apr1814 06:54 AM
Chestermiller

13 
238 
I hope this is the right place to ask this. It is an experiment question.
I have a 785 nm laser and a 1550 nm laser...

Apr1814 04:38 AM
UltrafastPED

4 
156 
Hi, all. Here is an expression about kinetic energy from analytical dynamics of Haim Baruh which confuses me.
...

Apr1714 04:09 PM
JonnyMaddox

4 
182 
Hi, all there are equation in the pic but I cant understand them. I know workenergy principle which
is W= F * X...

Apr1714 04:03 PM
dauto

2 
163 
Hi,
I have a 1m long, 10mm ID vertical tube attached to a vacuum system. I have a known flow rate of the air down...

Apr1714 12:21 PM
bigfooted

1 
115 
Here is an excerpt from my textbook:
"Ordinarily, this charge would simultaneously generate so large an electric...

Apr1714 11:23 AM
lonewolf219

2 
141 
I get that by getting a charged object near an uncharged one, charges of the opposite sign are induced on the surface,...

Apr1714 11:09 AM
Philip Wood

3 
188 
Since 2 splitted beams meet at ONE spot later on, we have just one beam which flows to the detector, therefore I...

Apr1714 10:24 AM
Goodver

6 
162 
Hello experts!
I was taking class of optical fiber and communication.
My teacher was teaching the class via...

Apr1714 09:29 AM
shayaan_musta

7 
182 
From my understanding, normal and anomalous dispersion are because the phase velocity is a function of k so it is...

Apr1714 08:04 AM
vanhees71

2 
104 
From this figure we could see the axis of rotation of wheel is y axis and it's translational motion is along x axis ...

Apr1714 07:32 AM
shivaniits

5 
178 
Hi.
Btw: I haven't studied statistical physics yet, but I have studied the introductory course on thermodynamics.
...

Apr1714 07:11 AM
ffia

0 
110 
Hello,
I need data (articles and books) about what connection there is between the speed (or the power) of a...

Apr1614 09:16 PM
curioso77

4 
226 
Suppose we have a planet of mass m orbiting a larger one of mass M along an elliptical path. If we use polar...

Apr1614 06:17 PM
zalook

0 
154 
So, let's say a spacecraft at a large distance from any star needs to dump a tremendous amount of stored electrical...

Apr1614 03:08 PM
nasu

3 
177 
sir in the graphs of electric field due to binary charge configuration
why some curves are below x axis and some...

Apr1614 12:53 PM
jtbell

3 
110 
Hi I am kind of Confused about an example in work done:
It says that a man applies 250 N parallel to the slope to...

Apr1614 06:30 AM
Doc Al

3 
251 
Is it possible to send enough light down a fibre optic cable to produce say 1000 Lumens? How would I go about...

Apr1614 02:14 AM
UltrafastPED

6 
147 
Does a shock wave have a finite value that can be shared within a system?
For example, if I explode a some...

Apr1614 01:08 AM
Simon Bridge

1 
120 
http://s22.postimg.org/r41250uoh/reactive_moment_force.jpg
Assume that the arbitraryshape object shown has a...

Apr1514 09:41 PM
FactChecker

6 
145 