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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,884 
Point charges w/velocity have a magnetic field. How does an uncharged capacitor slow the point charges to zero...

May3108 05:10 PM
pzlded

3 
1,998 
I'm working on a simulation for ballistics, and I am in dire need of some help with elasticity. It is primarily to be...

May3108 06:39 AM
tuoni

0 
1,565 
Well hello there! :D
I'm doing a project on graphical simulation of a bullet hitting a glass plate, and I have some...

May3008 07:40 PM
zoltaaaan

2 
1,226 
Is there anyway of measuring the potential difference between 2 points on a electrical circuit other than using a...

May3008 07:32 PM
f95toli

7 
3,808 
I am wanting to accurately calculate the top speed of a car (using it's power, mass, drag, and friction). I started...

May3008 06:20 PM
rcgldr

3 
15,132 
Someone repeated the Cavendish experiment at about 0 K?
My question: the gravity force is costant when mass is near...

May3008 04:43 PM
D H

9 
2,024 
Hi Guys,
I've attached 2 pages from the book of landau "The Classical Theory of fields", I have a question about...

May3008 07:13 AM
orubi

2 
1,443 
Hi, i have visited the forum for an explanation in cuantum theories (curious) and now i need other help.
In my...

May3008 03:30 AM
pzlded

4 
1,269 
How much heat is absorbed in changing 2kg of ice at 5°C to steam at 110.0°C? The Specific heats of ice, liquid...

May2908 03:58 PM
russ_watters

1 
1,050 
I am trying to derive the formula for E.m.f across the ends of a rod rotating in a magnetic field when the field is...

May2908 02:43 PM
mukundpa

2 
3,872 
Hi, I've just gone through a derivation and would like some confirmation that my reasoning is correct:
Say the...

May2808 09:19 PM
jbunten

4 
35,465 
I have a vector v = a i +bxj
Now I want to find a.So I apply chain rule and differentiate dv/dx * dx/dt = bj * Vx =...

May2808 07:56 PM
jbunten

9 
1,443 
Could everyone tell me how to calculate YAG/Al2O3 crystal saturating vaporization pressure?
P=P*exp(delt(H)/RT),but...

May2708 08:01 PM
gggarnet

0 
1,194 
I started working on statistical physics for only a few days and it maybe quiet elemantary,
how can i write the...

May2708 02:12 PM
torehan

0 
1,791 
Hi. I understand that Zernike was a physicist and that he did some work in optics, and am also aware of the Zernike...

May2708 08:57 AM
Andy Resnick

1 
1,190 
If I use a narrow slit (e.g. two fingers) to view a distant streetlight, I can see an interference pattern parallel to...

May2708 08:54 AM
Andy Resnick

18 
3,030 
Can anyone tell me if Internal\ Energy + Pressure * Volume equals heat, total energy, energy in transit?
What if...

May2708 02:38 AM
jimRH9

8 
7,584 
Suppose we have a ball made of linear dielectric with permittivity \epsilon, with some initial homogenous polarization...

May2708 01:15 AM
Euclid

1 
1,650 
Hey all, I was wondering about a varied version of something.
I know that if you run a magnet up and down a tightly...

May2708 12:27 AM
thedeepblue

3 
5,370 
How do I work out the rate of heat transfer between different states of matter? Say for example I wanted to calculate...

May2608 10:23 PM
Mapes

3 
2,693 
My thinking must be faulty somewhere, but I can't work out whats gonig on...
The equation
Tds = du + pdv and
...

May2608 04:48 PM
Mapes

2 
1,589 
I was wondering how to do the math for a bullet hitting some body armor.
Would you just divide the original force...

May2608 01:23 PM
rockerdoctor

2 
1,383 
Hello forum friends,
I have stumbled upon the fallowing heat conduction problem:
Consider a heat source of...

May2608 12:13 PM
Yoni

4 
1,685 
Hi guys
I have some questions about electrostatics, and I hope you can help me. Here they are:
1) Please take a...

May2608 06:41 AM
Doc Al

9 
4,313 
Hey
I am trying to figure out how to use the right hand rule when magnetic force points downward. I comprehend what...

May2508 11:16 PM
Col.Buendia

9 
3,161 
Hi, this question might seem really basic but I can't seem to wrap my head around it. For a DC generator (like the...

May2508 06:48 PM
cabraham

15 
4,030 
I am trying to include salt water in my Rube Goldberg project. Instead of the wires that connect a motor simply being...

May2508 04:47 PM
MadScientist 1000

1 
1,199 
I recently ran across an experiment which I needed to explain because it appeared to violate energy conservation. ...

May2508 03:17 PM
benjum

0 
3,188 
Flux = Int B dA
Why isn't this written as a double integral when we antidifferentiate over an areal?

May2408 06:38 AM
Doc Al

2 
1,970 
A few friends and I built a wave "machine." It's made by laying out brass "rods" about a foot long next to each other...

May2308 08:49 PM
bfr

3 
5,075 
Take a look at this little webprogarm...

May2308 07:32 PM
Shooting Star

5 
34,429 
I'm trying to write a Library entry on Reaction Force, and I've discovered I can't answer this very simple question....

May2308 06:05 PM
DavidWhitbeck

3 
1,667 
I know how to compute it and how to use it in equations. I do not understand what is physically happening however....

May2308 03:35 AM
dipstik

28 
5,292 
hi, im just assumin this is the right place for bernoulli stuff
pressure 1 and 2 are both static pressures, and the...

May2208 09:33 PM
russ_watters

6 
1,679 
Hello,
i would like to simulate an ideal gas flow in a cube...the cube consists of small cubes lined next to each...

May2208 04:35 PM
Lojzek

7 
4,652 
Hello. I'm having a bit of a problem. I need to calculate a change in rotational velocity on a rigid object given a...

May2208 02:26 PM
Hootenanny

4 
6,173 
We have the lefthand (motor) rule. We know exactly what happens when we run a current in a magnetic field.
Its...

May2208 10:02 AM
Shooting Star

3 
1,946 
I am a coach for athletes in various sports and have a problem that I can't figure out, but I'm hoping will be easy...

May2208 08:31 AM
Redbelly98

16 
18,837 
Do the molecules of a gas move randomly when they aren't colliding, or is it only when they have elastic collisions...

May2108 02:21 PM
Mapes

4 
2,597 
I'm trying to calculate the attractive force between two Water Molecules under the effect of an Electric field and I'm...

May2108 11:55 AM
borisete

4 
8,224 