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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,785 
Im having a bit of trouble using Newton's Law of cooling. I have been given the formula T(t)=T_s + (T_0  T_s) e^{kt}...

Apr110 09:21 PM
angel101

8 
19,264 
I am a high school student, so forgive me if my question appears stupid.
Consider a uniform magnetic field normal...

Apr510 02:40 AM
Phrak

42 
4,943 
Hope iposted this question in the right spot!!!!.
If i launched something in space and then stopped its forward...

Apr210 12:37 PM
LURCH

7 
889 
What is the correct way to use a fidicual marker to measure the time period of a pendulum?
Thanks

Mar3110 03:14 PM
0xDEADBEEF

1 
939 
I am having trouble understanding a basic problem in fluids that came up during an exam I took last quarter. Namely,...

Mar3010 03:34 PM
0xDEADBEEF

1 
645 
I ran a search for gyroscopes looking for a definitive solution to the "What causes Precession?" and found no good...

Mar3110 04:01 PM
Cleonis

4 
3,000 
I'm sure I'm not thinking of this the right way. I'm hoping someone can see the error in my logic.
Should a force...

Mar3110 08:00 AM
Stonebridge

5 
1,962 
Hi guys. I am working on making a haptic device for a baseball simulator. Now the problem is that I want to replace...

Mar3010 05:14 PM
DMajor

2 
807 
i guess my question is actually really really simple.
lets consider rotation in the xy plane so that L points in...

Mar3110 04:28 PM
rcgldr

12 
1,719 
When a dielectric material insert between two plate capacitors the conductivity may increase.
Normally we talk that a...

Mar3010 09:34 AM
Apteronotus

1 
1,049 
Hi,
I have two questions about electromagnetism that I would like to ask. The 1st one is as follows:
I have two...

Mar3010 03:12 PM
0xDEADBEEF

2 
1,152 
ok, the magnetic field through a single ring is n\muI ,
so the flux is BAcos(theta), with cos(theta)=1, flux = BA =...

Mar3110 09:31 PM
quietrain

4 
2,007 
I am studying differential equations from this book by Edwards and Penney, and I seem to have stumbled on this rather...

Mar3010 12:58 PM
Fightfish

3 
894 
I am confused about the concept of product of inertia.
Wikipedia says: "Here Ixx denotes the moment of inertia...

Mar3110 02:42 PM
Filip Larsen

1 
1,512 
Alright, I'm confused about why thermodynamic cycles can never have 100% efficiency. There reversible processes right?...

Mar3010 05:42 PM
russ_watters

2 
1,359 
Thanks to the post by studiot, I can update my discussion with the calculations.
Here's the problem:
"Suppose...

Apr410 03:24 PM
Galileo

8 
1,110 
I have become very interested in electricity and magnetism and I would LOVE to get more hands on experience than the...

Mar3010 08:58 PM
Xyius

0 
582 
I'm in the middle of studying for the MCAT, and just want to get all the concepts instead of memorizing how to solve...

Mar3110 04:55 AM
Doc Al

1 
1,478 
is the principle how an aircraft move ahead in ground similar to how a spacecraft moves ahead in empty space?
in...

Apr110 05:08 AM
rajeshmarndi

7 
1,088 
Hi
The way my teacher has defined coherency between two waves is that their mutual phase difference ∆ must be...

Apr110 02:20 PM
Cthugha

6 
2,314 
how does the air above an aerofoil(wing of an aircraft) move faster than the bottom surface just by increasing the...

Apr210 05:36 PM
Phrak

11 
7,607 
How to use a function f to describe the shape of water surface when a tiny object is floating on it based on surface...

Apr110 08:11 AM
xyd

2 
1,677 
I have an argument that I would like to have settled. In another forum, the original poster asked a general question...

Apr410 12:47 AM
BobCat123

23 
2,151 
I'm trying to simulate the force experienced by a currentcarrying wire under the influence of a magnetic field. I...

Mar3110 12:30 PM
diemilio

0 
1,209 
Conservation of momentum only applies when there are no external forces, so how would I add friction into the...

Apr210 03:37 PM
rock.freak667

10 
1,817 
All 
With a meter stick standing straight up and pivoted at the *bottom*, what is
the final angular velocity as...

Mar3110 11:19 PM
rock.freak667

1 
678 
http://i117.photobucket.com/albums/o53/MHarleman429/physicsquestion.jpg
The explanation of this question is...

Apr310 08:27 PM
cyclopath

6 
990 
The diagram shows a straight wire carrying a flow of electrons out of the page. The wire is between the poles of the...

Apr210 03:09 AM
bjacoby

1 
4,499 
Hello everyone.
I've got a question that has been bugging me ....
Do bodies have speed limit here on earth?
...

Apr410 07:03 PM
jack action

15 
2,229 
Hello All,
I am going to be conducting a basic physics experiment where a magnet, which can slide up and down a...

Apr110 05:30 PM
Jdo300

0 
616 
as scientists defines it work is the product of force and displacement i just want to ask is the displacement...

Apr210 02:52 PM
Studiot

3 
834 
I'm trying to model two cylindrical magnets (NdFeB, Grade N42) in Comsol. I'm obtaining the force and torques exerted...

Apr210 09:17 AM
trobriand

0 
2,852 
If you have a 3 dimensional perfectly conducting body the conditions at the boundary for the EM field is as follows:
...

Apr210 10:42 AM
clem

1 
613 
I would like to know if its possible to move water from a filled rectangular tank to another tank sliding down an...

Apr210 09:40 PM
spaulose

6 
2,079 
The reflection/transmission of an EM monochromatic plane wave when meets obliquely a plane boundary between two linear...

Apr210 04:21 PM
fabpan

0 
824 
http://farside.ph.utexas.edu/teaching/em/lectures/node56.html
By equation 595, electric energy in the universe...

Apr310 04:04 PM
lugita15

6 
1,558 
Hey, all.
If we partially introduce a linear, isotropic and homogeneous dielectric slab in a charged, isolated,...

Apr310 08:12 PM
clem

3 
3,098 
Hello,
For a given vehicle, I want to use a given chart for engine torque vs. engine speed (or hp vs. engine speed)...

Apr310 04:13 PM
rcgldr

1 
3,313 
Hi everyone I'm new.
I had an odd thought when thinking about centrifugal compressors.
Take a normal straight...

Apr410 06:06 AM
tyroman

1 
699 
We were taught in the vibrations and waves lecture course that the solution to the wave equation for traveling waves...

Apr410 06:47 AM
Vanadium 50

2 
3,255 