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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,830 
Trying to verify the general integral solution to Poisson's equation I reach the following contradiction, what am I...

Nov3007 05:23 AM
jmb

10 
9,099 
I am just curious to know what the advantages are to using center of mass for velocity are in a system of particles?
...

Nov2907 11:57 PM
johnreed

2 
2,183 
What does b mean in this context?
\Delta S = \frac{h\cdot f}{T} = k\cdot b
where S is entropy, h is Planck's...

Nov2907 11:02 AM
LTP

2 
3,583 
In "On twodimensional selfavoiding random walks", Guttman writes that for an Ising model, nu=1/tanh(J/kT_c) is an...

Nov2807 03:13 PM
YaroslavVB

0 
1,288 
what is the exact meaning of the word "canonical"?
why we name the momentum "canonical" in the Lagrangian or Hamilton...

Nov2807 11:08 AM
princeton118

0 
1,650 
Hello.
I just learned torque and i am really confused about one thing.
T = r x F.
Now in the above Torque, we...

Nov2807 06:32 AM
kevinr

4 
2,833 
Do all incandescent solids obey the fourth power law of temperature?
I think they all obey \ T^4
But the...

Nov2807 04:18 AM
Shooting Star

3 
3,826 
The law of equipartion of energy requires that specific heat of gases be independent of the temperature,in...

Nov2707 09:22 PM
neelakash

4 
2,162 
As we know the incandescent bulbs emit mostly heat and very small amount of visible light.Is there any way to increase...

Nov2707 09:07 PM
neelakash

3 
2,155 
Is there an example where you are pushing in the negative direction (force in negative direction) and yet doing...

Nov2707 07:17 PM
zhao

5 
948 
A pulley with radius R is free to rotate on a horizontal fixed axis through its center. A string passes over the...

Nov2707 05:05 PM
breez

6 
1,548 
I was just wondering why is the sunlight called the electromagnetic radiation. I posted this on other science forum...

Nov2707 04:02 PM
ZapperZ

3 
1,614 
Spectral radiancy curves for blackbody radiation at different temperatures do not intersect. If they do, that will...

Nov2707 10:10 AM
neelakash

0 
1,620 
does a high dryness fraction mean that the steam is dry or wet?

Nov2707 09:52 AM
bill nye scienceguy!

4 
18,081 
I am having trouble going about proving the Lorentz invariance and nonGalilean invariance of Maxwell's equations. ...

Nov2707 03:13 AM
Mentz114

4 
9,244 
What properties would an ideal ("perfect") diamagnet necessarilly* have?
(*as in in, implied by definition.)
This...

Nov2607 07:51 PM
olgranpappy

5 
3,773 
can we make any particle to move in cycloidal path due to electric field produced using static charges. explain pls

Nov2607 07:23 PM
i_island0

0 
2,278 
Gauss's law may be used to derive Coulomb's law. I've never seen it done the other way around. Is this possible? ...

Nov2607 11:53 AM
neutrino

2 
3,501 
how will be the dispersion pattern of a ray coming parallel to the base of a glass prism completely dipped in...

Nov2607 08:50 AM
pardesi

0 
857 
here's the situation
one ball with mass m1 and velocity v1 collides with second ball with mass m2 and 0 velocity. ...

Nov2607 02:39 AM
D H

3 
2,027 
My textbook says the following:
"If the center of mass of the system is not accelerating relative to an inertial...

Nov2507 05:26 AM
arildno

2 
2,371 
Hi,
From what I understand the proof of Gauss' law applies only to finite surfaces.
Can anyone give an example of a...

Nov2407 08:12 PM
JustinLevy

1 
1,921 
I got this question in Resnick Eisberg:
Pockets formed in a coal fire seem brighter than the coals themslves.Is the...

Nov2407 05:38 PM
TVP45

7 
2,072 
For a wheel in pure roll, or smooth rolling motion, with constant angular velocity, \omega, the velocity of the point...

Nov2407 11:23 AM
i_island0

10 
1,634 
May be this should have been in math section but since this came out while studying Electrodynamics i put it here
we...

Nov2307 10:38 PM
captphoton

3 
1,064 
Hiya ,
The commonly held view is that speed of sound (SoS) in a gas depends on temperature and not pressure. I want...

Nov2307 10:25 PM
mgb_phys

1 
1,223 
The flux rule states that the emf induced in any loop is given by the rate of change of magnetic flux through that...

Nov2307 12:02 PM
lugita15

0 
1,194 
The relation I= \sigma \ T^4 is exact for blackbodies and holds for all temperatures.Why is this relation not used as...

Nov2307 08:01 AM
Vazier

1 
3,669 
I am sorry it was a repost.I ask the moderator to close the thread.

Nov2307 07:14 AM
neelakash

0 
1,437 
Sorry for misconception. Why the mirror deflects light was the question? Because of the electronic configuration and...

Nov2307 03:36 AM
Kristy234

10 
1,873 
How can I figure the pressure in a 80 cubic inch tank at 0 psi being refilled
with a 8000 cubic inch tank with a...

Nov2207 01:30 PM
brewnog

1 
3,040 
The number of degrees of freedom for a massless rod
moving freely in space with a particle which is constrained to...

Nov2207 06:22 AM
Doc Al

1 
2,218 
in the newtons second law of motion we study "F=ma" letters having their usual meanings.
so if any object say"A"...

Nov2207 03:36 AM
otg

4 
1,357 
Hi there
There seems to be a few related posts on this topic but I can't make sense of them.
In the integral...

Nov2107 09:02 PM
lugita15

5 
1,678 
There is a problem in biomechanics that relates to a human runner’s gait (1) and how much power they consume. At each...

Nov2107 08:08 PM
tedjan

0 
2,693 
I'm trying to determine the wavelength of a particular situation. I'm given the refractive index of the metal and the...

Nov2107 11:02 AM
DaleSpam

1 
3,867 
Does anybody know of a way to derive the inertia tensor using group theory?

Nov2107 10:24 AM
La Guinee

0 
1,448 
So i have a problem with a question in which there is a falling raindrop where the mass and the radius are...

Nov2107 08:23 AM
stewartcs

3 
2,788 
I remember in 8th grade I was sick the day my class did this, and no one I talk to seems to remember how it was done...

Nov2007 08:29 PM
misstorea

12 
6,903 
Hey, guys. Thanks for reading this.
I have to present some interesting angular acceleration problem in my physics...

Nov2007 07:53 PM
Anticitizen

3 
1,147 