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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,791 
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 
185 
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 
125 
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 
175 
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 
260 
Dear Friends,
I carried out an experiment of sudden release of oxygen (open nozzle) from an oxygen cylinder used...

Apr1814 11:16 AM
curioso77

8 
184 
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 
177 
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 
140 
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 
185 
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 
161 
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 
181 
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 
109 
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 
224 
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 
152 
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 
109 
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 
245 
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 
142 
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 
110 
I've had a doubt about the following (somewhat contradictory) statements.
1) pressure applied to an incompressible...

Apr1514 12:22 PM
Chestermiller

34 
475 
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 
223 
Hello,
I would like to try to "model" motion of two gravitationally interacting bodies. But from some "separated"...

Apr1514 10:32 AM
UltrafastPED

1 
109 
how can we understand torsion of curve is in the direction of normal unit vector en?

Apr1514 10:30 AM
UltrafastPED

3 
117 
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 
105 
With increased pressure tungsten has a higher melting point. (source below page 30) 45kBar increases melting point...

Apr1514 08:25 AM
James125

2 
134 
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 
108 
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 
142 
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 
266 
... 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 
261 
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 
1,551 
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 
142 
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 
174 
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 
132 