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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,724 
when some molecules in a liquid gain enough energy to overcome attractive forces by surrounding molecules, they escape...

Dec907 08:25 AM
Doc Al

1 
1,641 
hi everybody
my question is:
a spherical shell is heated. the volume changes according to the equation...

Dec907 07:49 AM
Doc Al

4 
2,769 
Hi,
I'm trying to create a simple pool game. The ball is moving with speed vx along x axis and vy along y axis. This...

Dec907 05:54 AM
pmbasa

9 
2,277 
i used the formula for KE rotation KE=(1/2)Iw^2 and i translated it to (1/2) v^2/r^2, but i wanted to know what does...

Dec807 03:01 PM
Doc Al

3 
1,039 
I have read in several places that superconducting materials are the closest phenomenon to perpetual motion known to...

Dec807 09:55 AM
Advait

19 
4,331 
I am doing this project to check how the number of baldes of a turbine affects its output. So I used a D.C motor which...

Dec807 09:52 AM
Advait

9 
3,570 
Hello:
I am trying to figure out a way to calculate the number of calories burnt running. Before I do on to explain...

Dec707 06:16 PM
f95toli

6 
4,953 
I am trying discuss steak preparation with another person and an issue has arisen. I do not have time to perform this...

Dec707 05:19 PM
cmpalmer

10 
1,922 
Hi all
Can anyone explain the term exergy which I read recently in some textbooks. All I know is it belongs to the...

Dec707 04:07 PM
coomast

4 
1,941 
my teacher gave the class a quiz and one of the questions was to calculate the work done. the formula for work is...

Dec707 05:07 AM
Doc Al

4 
1,869 
I've read books saying that heat and thermal energy are the same and Ive read other books saying they are not the...

Dec607 03:59 PM
DaleSpam

1 
2,967 
i need to find max shear stress at a point on a plate (with a hole) under tension. i found using experimental data the...

Dec607 10:54 AM
FredGarvin

1 
4,106 
Hallo all of you! :)
I have a question does anybody know a paper/book where thermal conductivity depending on...

Dec607 07:54 AM
Mandavar

0 
2,181 
Suppose we have box with a volume V which is divided down its middle.
So the box is split in two sides with equal...

Dec607 03:08 AM
LTP

8 
2,557 
Hi friends!
Can somebody tell me anything about potential hole at liquids?
Thank you!

Dec607 02:37 AM
chmate

1 
2,719 
hi,
i would like to ask a physics question concerning two basic kinematics equations: d = v t and the projectile...

Dec607 01:28 AM
crowdiddly

8 
5,085 
Hi everyone I´m new here...
I want to get a expresion for the LienardWiechert vector potential at non...

Dec607 01:08 AM
Freeisos

0 
2,419 
Gentlemen and Ladies  Requesting a little clarification on this.
Heres the setup: I have "steady" voltage source ...

Dec507 04:16 PM
kboi

0 
2,515 
This is what i dont get for things spinning in circles.
So let's say you tie a mass to the end of a string, and you...

Dec507 10:46 AM
Mentz114

15 
3,241 
How do I rotate some shape in 2d space? That is, what factor do I multiply the x and y components to rotate my shape?...

Dec407 07:27 AM
fcs04001

3 
1,850 
Hey everyone!
I am currently on a project building a small CanSat. This is a small satellite of the size of a coke...

Dec407 05:37 AM
Logarythmic

0 
1,277 
For the rotational motion, on my book, it says "Since w (angular velocity) is the same for all points of a rotating...

Dec307 09:55 PM
Astronuc

12 
2,362 
There is a bit of data and literature that shows the standard heats of formation for various uranium compounds...

Dec307 05:20 PM
tzeng89

0 
3,929 
I am lost in how to use quickfield to manipulate objects.
I need to create a uniformly charged cylindrical
...

Dec307 04:04 PM
stewartcs

1 
2,191 
Hi all,
I'm a physics teacher at an australian high school, and some kids that I teach have give me some...

Dec307 03:39 PM
DaleSpam

20 
5,042 
Hiya ! Got a problem about gas flow ..........
I understand that gas flow speed through an orifice is choked to the...

Dec307 12:53 PM
RKT

15 
7,909 
Hi, I'm havign a hard time figuring out how the right hand rule works for Angular momentum, Angular velocity and...

Dec307 11:53 AM
Forgetful_Duck

4 
6,511 
Hello, I am having trouble finding solutions for a localized electromagnetic pulse in 3D. Ideally, I'd like the...

Dec207 11:10 PM
Claude Bile

13 
2,582 
Suppose we have a satellite orbiting in circular motion around the earth (steady velocity) in a radius R.Everything is...

Dec207 10:50 PM
jtbell

1 
1,693 
Please if any one can help me with my torque project. I need some subjects, and pecturs to finsh it. This is my first...

Dec107 08:11 PM
dur

7 
1,851 
Can anybody provide me with information on thomson scattering for someone who hasn't done electrodynamics? I find ones...

Dec107 07:53 PM
cscott

3 
1,944 
Hi
I am going to make a small roller coaster and I had a couple of questions about it.
1) What materials are the...

Dec107 05:48 PM
Danger

1 
3,602 
There's a problem going round in my mind that i'm not realy sure it's possible to put forward in a way that will make...

Dec107 03:11 PM
SansHalo

14 
2,041 
I'm trying to write a lab report but I cannot figure out how to derive the formulas for my Theories and Derivations...

Dec107 12:59 PM
DGalt

2 
8,479 
I'm pretty sure i know what diplacement current is and how to calculate it but i have no idea why its needed. I don't...

Dec107 06:13 AM
clive127

0 
1,438 
In light of the Conservation of Energy principle, what would happen to the potential energy of the Earth's moon, or...

Nov3007 06:50 PM
jtbell

7 
2,145 
From a mathematical standpoint I have no trouble understanding the difference between a conservative vector field and...

Nov3007 12:19 PM
mjordan2nd

4 
983 
Howdy Eevrybody!
I'm starting research into an idea that struck me rather suddenly (but with no lasting injuries),...

Nov3007 11:43 AM
TVP45

2 
3,407 
A man, holding a weight in each hand, stands at the center of a horizontal frictionless rotating turntable. The effect...

Nov3007 07:57 AM
Doc Al

5 
1,650 
Trying to verify the general integral solution to Poisson's equation I reach the following contradiction, what am I...

Nov3007 05:23 AM
jmb

10 
9,086 