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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,693 
Hello experts!
I was taking class of optical fiber and communication.
My teacher was teaching the class via...

T 03:15 AM
shayaan_musta

4 
98 
From my understanding, normal and anomalous dispersion are because the phase velocity is a function of k so it is...

T 02:52 AM
applestrudle

0 
20 
From this figure we could see the axis of rotation of wheel is y axis and it's translational motion is along x axis ...

T 02:10 AM
Simon Bridge

4 
142 
Dear Friends,
I carried out an experiment of sudden release of oxygen (open nozzle) from an oxygen cylinder used...

T 12:23 AM
vishwanaya

7 
145 
Hi
1) I am reading Pippard's Classical Thermodynamics and was confused by one of his examples in the attachment.
...

Y 11:25 PM
Red_CCF

54 
834 
I'm having a hard time understanding air flow caused by pressure differentials. Given the following contextual image,...

Y 09:37 PM
kibestar

4 
115 
Hello,
I need data (articles and books) about what connection there is between the speed (or the power) of a...

Y 09:16 PM
curioso77

4 
198 
Looking for a way to increase magnetic forces in electrical devices, an option is reduce the air gap, but some times...

Y 09:07 PM
curioso77

0 
89 
I get that by getting a charged object near an uncharged one, charges of the opposite sign are induced on the surface,...

Y 07:14 PM
explainplease

2 
121 
Suppose we have a planet of mass m orbiting a larger one of mass M along an elliptical path. If we use polar...

Y 06:17 PM
zalook

0 
103 
So, let's say a spacecraft at a large distance from any star needs to dump a tremendous amount of stored electrical...

Y 03:08 PM
nasu

3 
148 
Since 2 splitted beams meet at ONE spot later on, we have just one beam which flows to the detector, therefore I...

Y 01:16 PM
Goodver

4 
105 
sir in the graphs of electric field due to binary charge configuration
why some curves are below x axis and some...

Y 12:53 PM
jtbell

3 
74 
Here is an excerpt from my textbook:
"Ordinarily, this charge would simultaneously generate so large an electric...

Y 12:32 PM
UltrafastPED

1 
86 
Since Lagrangian is a function of q, q dot & time, then why in describing the Hamiltonian (H), L does not involve time...

Y 12:06 PM
UltrafastPED

6 
187 
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...

Y 06:30 AM
Doc Al

3 
205 
Is it possible to send enough light down a fibre optic cable to produce say 1000 Lumens? How would I go about...

Y 02:14 AM
UltrafastPED

6 
123 
Does a shock wave have a finite value that can be shared within a system?
For example, if I explode a some...

Y 01:08 AM
Simon Bridge

1 
101 
http://s22.postimg.org/r41250uoh/reactive_moment_force.jpg
Assume that the arbitraryshape object shown has a...

Apr1514 09:41 PM
FactChecker

6 
123 
After I have an expression for the streamfunction in a problem, I can differentiate to get the tangential and radial...

Apr1514 06:46 PM
wahaj

4 
88 
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...

Apr1514 06:41 PM
Chestermiller

49 
869 
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...

Apr1514 01:24 PM
Yondaime5685

3 
108 
I've had a doubt about the following (somewhat contradictory) statements.
1) pressure applied to an incompressible...

Apr1514 12:22 PM
Chestermiller

34 
408 
I have been toying with an idea that may break the second law of thermodynamics for a while now, but it is basically...

Apr1514 11:06 AM
berkeman

6 
201 
Hello,
I would like to try to "model" motion of two gravitationally interacting bodies. But from some "separated"...

Apr1514 10:32 AM
UltrafastPED

1 
95 
how can we understand torsion of curve is in the direction of normal unit vector en?

Apr1514 10:30 AM
UltrafastPED

3 
102 
Hi, I'm studying classical mechanics via Goldstein's book. And at the beginning of the chapter on the symplectic...

Apr1514 09:22 AM
JonnyMaddox

0 
86 
With increased pressure tungsten has a higher melting point. (source below page 30) 45kBar increases melting point...

Apr1514 08:25 AM
James125

2 
112 
I am curious about the effects of oscillation in a heat transfer system. For example consider a simple system...

Apr1414 11:25 PM
Seth.T

3 
94 
Are there any good books to understand the BBKGY equations of kinetic theory?

Apr1414 08:24 PM
TSC

4 
137 
Relating to the synchronous nature of the moon’s rotation and orbit around the earth, what would happen if the orbital...

Apr1414 05:51 PM
cjl

1 
124 
I am teaching Physics and I'm not looking for help for a particular homework problem but on a class. Sorry if this...

Apr1414 05:03 PM
ranger275

9 
233 
... regardless of any possible technical problems, and then, on earth:
a) someone throws an object in the air and...

Apr1414 04:21 AM
sophiecentaur

10 
244 
After figuring out how to calculate Cd and Crr coefficients, I'd like to continue my "vehicle physics exploration":...

Apr1414 04:13 AM
jumpjack

75 
1,402 
I recently looked at the reference in an article I am reading, and subsequently checked "Oscillations and Waves in...

Apr1414 01:58 AM
UltrafastPED

1 
129 
I'm developing a scanner that uses a laser for edge detection. It will be mounted on a hexacopter that will traverse a...

Apr1414 01:54 AM
UltrafastPED

4 
165 
It is taught that the classical treatment of the diatomic atom would give a heat capacity of $7/2$ due to 7 degrees of...

Apr1314 10:31 PM
dauto

1 
119 
Hi all, im trying to get my head around some experiment results but im struggling a bit.
According to my notes H...

Apr1314 06:56 PM
DrZoidberg

2 
155 
Hello
I have learned about maxwells relations and can derive them. I noticed that we had made an assumption of a...

Apr1314 03:29 PM
Maylis

1 
181 
Let's say that you have an open tank of water and a hose connected to the bottom of it. Water is flowing out of the...

Apr1314 02:04 PM
jbriggs444

14 
255 