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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,671 
I once came across a Wikipedia page describing a system where indifferent of the initial starting position, at some...

Jun3011 12:52 PM
chrisbaird

2 
1,183 
I am getting stuck trying to solve a differential equation describing the gravitational relationship between two...

Jun3011 07:31 AM
phyzguy

2 
1,261 
Hey all. I was wondering what the interaction between Electric and Magnetic field lines are. For example, when you...

Jun3011 03:39 AM
Drakkith

10 
4,510 
A picture that seems to show up a lot in high school physics is one like this:
...

Jun3011 03:28 AM
sophiecentaur

66 
7,501 
Hi all!
I tried to make an inductor.
Naturally, I am not sure about it's inductance value.
I made an LC series...

Jun2911 11:11 PM
Antiphon

3 
2,105 
Hello, I am writing to ask about the specifics behind the concept that recurve bows have an arrow velocity advantage...

Jun2911 04:23 PM
markkrebs

9 
32,322 
I'm sure this is a rather simple calculation, but I just can't seem to get it right. During a recent lecture a...

Jun2911 12:38 PM
phyzguy

3 
1,773 
if a particle of matter and anitmatter collide they are annihilated.
Does this violate the laws of thermodynamics?...

Jun2911 12:16 PM
Ryan_m_b

3 
1,994 
The following is something that puzzles me a bit, and I'd appreciate some insight in the matter.
Thank You :)
...

Jun2911 11:56 AM
Andy Resnick

1 
1,054 
For retarded scalar potential of arbigtrary source around origin:
V(\vec r, t) = \frac 1 {4\pi\epsilon_0}\int \frac...

Jun2911 11:53 AM
yungman

3 
923 
In an

Jun2911 11:04 AM
timthereaper

1 
525 
Usually in statistical physics, when your system has a large number N of particles, you take the continuum limit ...

Jun2911 10:08 AM
drkatzin

4 
2,734 
Hello. I have some questions about the study of partial coherence with a Fresnel biprism.
In common text degree of...

Jun2911 08:12 AM
Andy Resnick

1 
1,642 
Why do capacitors charge exponentially?
and do not explain by equations.

Jun2911 07:37 AM
tushar gupta

2 
1,147 
Where to find an exact formula for brightness temperature caculation?
Only Wien's approximation is used everywhere....

Jun2911 06:39 AM
f95toli

1 
2,336 
The scenario:
I have a bag containing 3L of water, attached to a tube with the end placed on the floor (or a fixed...

Jun2911 05:05 AM
HallsofIvy

2 
2,445 
Please teach me this:
What is temperature in nonmolecule substance(e.g photon,phonon,plasma...and ...

Jun2911 04:58 AM
Studiot

12 
1,456 
Hello, I feel like an idiot because I can't answer this myself (I forgot my high school physics).
I have a stereo...

Jun2811 05:57 PM
Studiot

2 
744 
Why and how does light get brighter as you increase a light bulbs voltage?

Jun2811 05:22 PM
Drakkith

9 
3,211 
How can we calculate the flux in a coil which carries a current? I am having trouble determining the field at any...

Jun2811 02:12 PM
Redbelly98

11 
1,348 
If all frames of reference are taken as equally valid. when a car moves, to the passengers in the car the world is...

Jun2811 01:08 PM
chrisbaird

3 
1,197 
i am new to physics so had a question regarding appearance of objects
firstlywhy do we see the objects as they...

Jun2811 10:07 AM
danR

5 
1,000 
I'm only interested in the 2d representation of this, as I will be applying whatever I learn to a physics engine
...

Jun2811 02:07 AM
trogdor458

0 
804 
A Changing Magnetic Field Produces Electricity. Suppose we build a huge coil in space and place a strong magnet in...

Jun2811 12:19 AM
ARAVIND113122

8 
2,354 
For retarded scalar potential of arbigtrary source around origin:
V(\vec r, t) = \frac 1 {4\pi\epsilon_0}\int \frac...

Jun2811 12:15 AM
yungman

5 
1,318 
I'm trying to understand the derivation of the EulerLagrange equation from the classical action. This has been my...

Jun2711 08:42 PM
silmaril89

4 
2,248 
Hi. Sorry if this looks too beginnerish question.
Lets say we have two objects moving towards each other. One is...

Jun2711 12:29 PM
chrisbaird

2 
1,327 
Please use zoom function for better view.
http://s3.postimage.org/6kyf2dcdn/Untitled.png
...

Jun2711 09:03 AM
Polyrhythmic

1 
1,294 
For instance, if an object moves with a constant velocity on a frictionless surface and hits a spring that makes it go...

Jun2711 08:23 AM
KingNothing

21 
1,664 
Example: A conducting sphere X that has an initial charge of +2.0 × 10–8 C and an identical conducting sphere Y that...

Jun2711 08:00 AM
AceInfinity

8 
1,918 
If I have an elastic formin a helix which i've turned N times and have a radiu r... it connect two masse m (one of...

Jun2711 07:35 AM
ardie

2 
861 
We have a circular non conducting ring placed in a uniform magnetic field with its direction perpendicular to the...

Jun2711 05:58 AM
DaleSpam

1 
1,122 
Hello, I was wondering under what conditions does free fall need to comply to in order to take effect? I am pretty...

Jun2711 02:01 AM
newtant

14 
1,686 
A friend of mine says they can tell which 2 notes are being played together on a piano keyboard. How can this be if...

Jun2711 12:06 AM
Born2bwire

39 
4,353 
Is it possible to transmit an omnidirectional light source, through a focused unidirectional light source(like a...

Jun2611 11:08 PM
fermatsenigma

3 
2,008 
First off, i'd like to note that this isn't homework, and i've seen other threads in here that deal with...

Jun2611 08:08 PM
tinytim

3 
1,652 
Hello.
I have two stringbob pendulums of identical length and mass suspended on a loosely hanging rope. I set one...

Jun2611 07:36 PM
Nirgal

8 
2,011 
For a general dynamic system: dXi/dt = Fi(X1, X2,...,Xn), i=1,...,n, suppose that we can write down a Lyapunov...

Jun2611 06:23 PM
sunon77

0 
1,115 
I understand that the simplest tuner you can have is a capacitor and inductor connected in series, and i understand...

Jun2611 06:22 PM
willem2

1 
1,071 
Hi everybody,
I'm trying to calculate the spontaneous energy of a projectile fired by a rifle, handgun, or a canon....

Jun2611 05:16 PM
danR

12 
7,528 