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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
46,790 
Hello
Suppose that I insert a thinneedle thermometer into a porous material (such as snow) that consists of air,...

Aug2309 11:05 PM
nkinar

6 
1,100 
I'm reading the book "Electricity and Magnetism: Vol. II" by Edward M. Purcell, in which he describes Gauss' law as...

Aug2309 10:10 PM
Born2bwire

3 
1,048 
I've learned that the electrostatic force is about 10^{39} times greater than the gravitational force.
I guess the...

Aug2309 11:35 AM
Naty1

15 
1,330 
Hi,
Is it possible to have a magnetic field B which has curl B = 0 in all space?
intuitivly such a field will be...

Aug2309 02:08 AM
naftali

4 
5,134 
I was unfortunate enough to have sports on the days of my mechanics classes so I've basically missed most if not all...

Aug2209 11:52 PM
Mentallic

3 
795 
Hey guys,
I have the following (nonhomework) problem:
I am simulating a collection of normally distributed...

Aug2209 08:37 PM
creepypasta13

1 
742 
I am trying to work out the physics used in a microcontroller project. I am having problems with even simple...

Aug2209 12:43 PM
sganesh88

2 
851 
Hi guys, I am reading Reif's book on statistical mechanics and have a question on the H theorem. In section 2.3, Reif...

Aug2209 12:39 PM
Sam_Goldberg

10 
1,853 
Or how did Coulomb measure quantity of electricity while doing his experiments that leads him to claim his famous...

Aug2209 11:39 AM
Bob S

4 
1,446 
Hi, I'm not sure this falls under the homework category, but I posted this here because I think this is more of an...

Aug2209 11:14 AM
jfierro

5 
2,660 
if a system is made of 3 atoms with no degeneracy with energy levels of fro example 0, e, 2e
would it be safe to...

Aug2209 08:58 AM
Count Iblis

4 
696 
Is it true that partition function for canonical ensemble is
Z=\sum_{\{states j\}}e^{\beta E_j}=e^{\beta F}
...

Aug2209 08:49 AM
Count Iblis

9 
1,290 
My question is what causes death wobble? Let me explain more...
The vehicle I've experienced this on is a Jeep with...

Aug2209 04:03 AM
rcgldr

19 
15,648 
A classic problem in freshman electrodynamics is as follows: We have a capacitor (capacitance C1) charged up w/ charge...

Aug2109 09:22 PM
Bob S

4 
1,114 
Hello Everyone,
Recently, I was trying to explain the fundamentals of thermal radiation to a nonengineer and I...

Aug2109 02:03 PM
CFDFEAGURU

2 
866 
Is there an other liquid that was similar water(In Convection current) but without the conductivity of it?

Aug2109 12:14 PM
sampro

17 
4,452 
Here is an invention I'd like to share with anyone who has the money to develop and market it. Furthermore, I don't...

Aug2109 09:18 AM
russ_watters

1 
610 
Let us consider a wheel which rotates about an axle thorugh its center with an angular velociy \omega0. After sometime...

Aug2109 07:17 AM
Amar.alchemy

2 
1,690 
This is my first post so I hope I'm putting it in the right section :redface:
I searched for similar questions but...

Aug2109 02:34 AM
stevebd1

5 
1,241 
A steam engine stove produces, say, 10 units of warmth, the second law states that not all warmth can be converted...

Aug2009 02:55 PM
Mapes

6 
1,652 
I was curious about how exactly energy was transferred in electrical circuits because all my texts were inadequate....

Aug2009 10:23 AM
cak942

3 
1,307 
I need to find a means to calculate the load on three or four ropes that are supporting a weight between them. These...

Aug2009 06:53 AM
DaleSpam

9 
3,986 
In what kind of instances would the quantity of impulse be used? My text book says that it's when very large forces...

Aug2009 03:37 AM
mahela007

4 
755 
I was studying avometer, and came across this paragraph which I find confusing: "The voltage measuring part of the...

Aug2009 02:51 AM
Darryl

1 
1,271 
In essence, Beers law describes the behavior of a quantity where the probability of a unit of that quantity over a...

Aug2009 01:56 AM
John Creighto

0 
1,449 
Hi,
Let E(r,t) = E(r)exp(ikz)exp(iwt)
be a plane wave in time domain, propagating...

Aug2009 12:28 AM
Madara

2 
1,078 
Every coil have more than one layer.All coils are coaxial.
I kown all their dimensions ,turns,layers.
I use...

Aug1909 09:37 PM
yunaijun

0 
624 
In the kinetic theory of Gases , we rely purely on classical mechanics. We derive the equations using classical...

Aug1909 07:35 PM
mikelepore

2 
703 
I'm designing a paddle wheel drive house boat and need to do some calculations to see if the parts I have on hand can...

Aug1909 03:32 PM
bertbcfm

0 
3,645 
I was told that you need a low voltage, high amperage taser to make any damage. I know that touching devices with high...

Aug1909 02:44 PM
John Creighto

6 
21,835 
ive been trying to do this question all summer to no joy. ive got a flywheel in motion which then has a torque...

Aug1909 06:41 AM
tomhitchmough

2 
1,217 
Quantities, like photons, alpha/beta particles, can travel with a billiard ball like behavior. There are two...

Aug1909 03:22 AM
John Creighto

0 
592 
we've been studying te physics involved in bungee jumping. We went to a bungee site, and recorded data, such as length...

Aug1909 02:32 AM
glugger

10 
2,098 
1)What is the formal definition of a point charge? It is known, that coulomb's law , is valid for point charges? But...

Aug1909 02:08 AM
manofphysics

4 
1,642 
Hi ive been having an argument with a few friends about a theory of mine (based on what i can remember from my physics...

Aug1809 11:34 PM
sylas

16 
5,148 
I'm confused by coarse and fine grained entropy and how they're related to the standard Boltzmann and Gibbs equations....

Aug1809 10:18 PM
SW VandeCarr

1 
2,020 
This is a physics and math problem
The representation of a vector as a straight ray is problematic
Imagine an arc of...

Aug1809 03:07 PM
vin300

1 
522 
I recently watched the Feynman Messenger Lectures on project tuva. I hope some of you have watched the second video...

Aug1809 11:27 AM
Pinu7

4 
1,626 
Dear all,
I've found in many books forces acting between 2 parallel wires, but not between a magnetic field and a...

Aug1809 02:06 AM
fatra2

4 
657 
Let's say there is flat floor at y=0 . There is a rectangle of which two vertices are at (0,0) and (w,h). There is a...

Aug1809 01:23 AM
tom_backton

4 
763 