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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
46,943 
It's been a while since I've been in science class and I was wondering if this was theoretically possible. It's so...

Aug408 04:03 AM
ZharAngel

1 
981 
Hi
Is there any connection between creativity and level of order?
wikipedia  Creativity (or "creativeness")...

Aug308 01:42 PM
vanesch

1 
1,422 
As it is known to all,the atmospheric electric field does exists.In fact,near the ground its strength is about...

Aug308 12:33 PM
russ_watters

1 
937 
hello, I'm new here =D
dunno if this is the right section to ask this
I'm really confused about power voltage and...

Aug308 12:24 PM
russ_watters

4 
13,441 
I'm trying to calculate the amount of force I will need to move a 9.6g object at an average speed of 450 feet/ second....

Aug308 02:52 AM
Integral

5 
1,115 
I always thought that an electrode is what transforms the mechanical energy of a generator into electrical energy.
...

Aug208 10:30 AM
stickythighs

2 
7,568 
Hello,
I'm looking for some documentation on how to implement "open boundary conditions" into electromagnetic...

Aug208 02:50 AM
Heimdall

0 
1,598 
I'd like to calculate the energy required to move a 1000lb vehicle at 55mph for 1hr. I'm looking for a simple...

Aug108 11:27 PM
quark1005

4 
15,724 
Let's say I have a field (electric or magnetic or something) and it's timevarying so I choose to represent its...

Aug108 05:32 PM
misho

2 
1,527 
I have a doubt about electric flux.
It is said to be the no. of field lines passing through a given area.
But then...

Aug108 01:49 PM
aniketp

4 
1,062 
I've been reading and studying from 'Engineering Mechanics  STATICS 5th edition' by Beford and Fowler and it says...

Aug108 12:21 AM
James R

3 
6,506 
At t = 0, Q0 = 18 C and I = 0 in an LC circuit.
(a) At the first moment when the energy is shared equally by the...

Jul3108 11:45 PM
Defennder

1 
2,374 
when inertia can act as athe mass ,force and generate momentu, the why another word called mass moment of inertia. how...

Jul3108 04:04 PM
PatPwnt

11 
13,356 
After a while reading physicsforums.com from the shadows, I have decided to emerge and ask a question or two.
I was...

Jul3108 07:51 AM
Andy Resnick

1 
1,061 
Hi All,
A stupid question for sure (sorry).
Does a moving ion, since it carries an electric field, creates some...

Jul3108 04:31 AM
somasimple

12 
2,414 
There is a 200 liter tank, well insulated.
I first fill in 180 Liter of 50 Degree Celcious water, then slowly...

Jul3008 11:05 PM
chilleralitas

0 
1,197 
I'm trying to understand electrical potential and have a couple thought questions (Part A and part B)
Part A
Is...

Jul3008 02:26 PM
Ben Niehoff

1 
3,854 
Easy question for those who know, I expect. It would help me understand though.
Generally, wherever I look for...

Jul3008 08:21 AM
lichen

2 
1,054 
Wikipedia says: "In a uniform gravitational field, the gravitational potential at a point is proportional to the...

Jul3008 08:11 AM
rolly_wood

0 
1,549 
Does anyone know the optical algorithms for calculating (or at least estimating) parallax and luminosity? So far I...

Jul3008 08:10 AM
Andy Resnick

7 
1,640 
Hi,
I was just wondering why the air going over a wing travels faster than the air going underneath? My teacher once...

Jul3008 07:09 AM
kidsmoker

3 
5,063 
hi there.
I'm having some problems with Center Mass calculations... I have a CM moving at x axis with Vx, and it as...

Jul3008 05:35 AM
Littlepig

2 
986 
Hello,
After some persistent trouble, I finally succeeded in registering and logging in. Hurrah.
I cannot often...

Jul2908 05:44 AM
Almanzo

4 
1,754 
Hello.
This is not a Physics homework problem, but rather a Programming project. I am asked to model a pendulum...

Jul2908 02:18 AM
Integral

4 
6,286 
Hi All,
I have a question and hopefully this is the right board for it. First let me explain that I am a...

Jul2808 08:09 AM
Andy Resnick

2 
2,616 
I have a quad with electric start and a pull start (like a lawn mower). Can it be pull started after an emp? If not...

Jul2808 02:01 AM
Integral

1 
1,044 
The figure shows a cuboidal shaped conductor inside which there is an ellipsoidal cavity. The center of the cavity is...

Jul2708 11:02 PM
i_island0

3 
2,475 
I have been having a lot of trouble finding classic works of physics and sciences online. Can't find anything by...

Jul2708 02:11 PM
artie

3 
1,731 
Ex:At home, you plug an electric drill into an electrical outlet and turn it on. At the moment you turn on the drill,...

Jul2708 08:30 AM
clem

1 
1,415 
Hi
I tried to derive the distance traveled by a body at contact acceleration from the definition of acceleration...

Jul2708 05:52 AM
Hootenanny

2 
21,212 
I read on wikipedia that the E field obeys the superposition principle, meaning I can just add up the individual...

Jul2608 04:31 PM
hyphenator

0 
943 
Could you please spot where is the fault in this reasoning? I suspect that some of the relations may not be applicable...

Jul2608 06:06 AM
Vanadium 50

4 
1,778 
I hope someone can help with this  its been driving me mad for a while now!
You will have noticed the shape coffee...

Jul2508 01:12 PM
lawrence666

8 
1,570 
Hi,
Suppose we apply an electric field E to a dielectric material. It is my understanding that the actual field...

Jul2508 12:15 PM
Andy Resnick

4 
1,309 
in relating the index of refraction to the relative permittivity (dielectric constant/function). it is known that n =...

Jul2508 11:58 AM
mpolyanskiy

1 
14,564 
When one object accelerates away from another object, relativly they are both accelerating away from each other. The...

Jul2508 11:27 AM
DeepSeeded

7 
1,526 
would the speed of light be attainable in a place where light doesn't exist?

Jul2508 10:51 AM
therector24

10 
1,496 
Hi could anyone advise me to weather I am right in thinking when using equation one to calculate the thermal...

Jul2408 10:56 AM
gemt

0 
1,103 
in using rayleigh scattering theory to calculate the polarizability of particles of arbitrary forms with sizes smaller...

Jul2408 04:59 AM
HallsofIvy

1 
1,522 
So, someone said the random quote "We dropped him faster than a magnet".
So my question is, if this proposed magnet...

Jul2408 12:31 AM
Monocles

1 
2,077 