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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,834 
Hello.
I've got a magnet of a determinate radius and a coil.
Which radius should i give to the coil (in function of...

Oct109 12:51 PM
encomes

0 
467 
Hi everybody...
this is my first topic here.
I'm solving problems for the phd test here in my university. Here's...

Oct109 12:05 PM
nonhermitian

6 
3,016 
Hey guys,
I am kinda simulate car dynamics with given parameters. I actually want simple solution. I have been...

Oct109 09:29 AM
dehseth

12 
6,762 
I was wondering if someone could help me this NavierStokes Equation.
f = DP + Dt + f
Could someone maybe...

Oct109 08:42 AM
Andy Resnick

2 
1,823 
hi. i live in a backwards country.
the optics textbooks here do not really go into enough detail.
how do i...

Oct109 06:23 AM
iffybom

0 
443 
Hi,
new to the forum, I was shown a graph (hopefully I can upload it).. it is to do with porosity, but I don't think...

Oct109 05:45 AM
geo_lane

0 
532 
Hi all, got a little physics problem that I wonder if anyone could help me with.
I'm using an accelerometer to...

Oct109 02:59 AM
nidhi.monika

7 
7,755 
Hi, thanks in advance for any help and info. Have two conditions.
The first condition is a mass of water spinning...

Sep3009 04:13 PM
trustthrust

2 
3,441 
I've been trying to find the answer to a question i have online but haven't had much luck.
Where did Stable or...

Sep3009 02:35 PM
DaleSpam

2 
968 
Hello,
I am a tactical driving instructor and a precision/stunt driver. For more than 15 years I use high PSI tire...

Sep3009 05:25 AM
xxChrisxx

1 
7,092 
We know that the more electrons there are in the valence shell of an atom, the stronger the London Dispersion Forces...

Sep2909 10:59 PM
sermatt

1 
650 
if you have mass and displacement on a horizontal surface how do you find acceleration

Sep2909 10:46 PM
Vanadium 50

1 
866 
are the forces acting on the passenger seating in the back seat of the car different from the forces acting on the...

Sep2909 04:46 PM
0xDEADBEEF

1 
1,468 
Sorry for such a simple question, but what are the differences between using insulation and heat reflective material? ...

Sep2909 04:20 PM
0xDEADBEEF

1 
1,514 
hi,
a doubt regarding rolling motion of a ball down the incline has been giving me sleepless nights for a couple of...

Sep2909 08:54 AM
shohin

10 
1,159 
Hi,
From knowing that the 3D harmonic oscillator has 3 degrees of freedom, how do you conclude that the average total...

Sep2909 07:43 AM
conway

15 
9,916 
Hello all,
I understand the fact that the principles
LaTeX Code: F= \\nabla \\phi .
LaTeX Code: \\nabla...

Sep2909 12:11 AM
sleventh

2 
1,141 
I have a question:
I have two plates that form a right angle. How would I go about finding the Capacitance of the...

Sep2809 09:27 PM
Born2bwire

4 
1,178 
Hi,
Why is there a difference in electric potential from a point on the surface of a stationary magnet to a point...

Sep2809 06:09 PM
Bob S

4 
1,384 
I've asked myself the following question but couldn't think about an answer.
Imagine a hypothetical situation : you...

Sep2809 05:55 PM
Bob S

5 
1,635 
hello, i'm using an accelerometer (ADXL311) which outputs analog voltage in proportion to g's for X and Y axes. i'm...

Sep2809 02:59 PM
nidhi.monika

5 
7,921 
If a car crashes into a solid unbreakable wall, how is momentum conserved (I know it must be). To me, it seems that...

Sep2809 01:51 PM
willem2

3 
2,392 
What would cause more injuries to the passengers of each car?
a) car colliding against brick wall.
b) car colliding...

Sep2809 01:44 PM
XanziBar

1 
1,210 
A few questions about electric field here:
1. Why do charges have to be on the outer surface of the conductor?
2....

Sep2809 11:37 AM
DaleSpam

8 
4,511 
Hey all,
Can someone please tell me why is the trace of the Jacobian of an integrable hamiltonian system equall to...

Sep2809 12:02 AM
thrillhouse86

1 
864 
When working on homework problems having to do with voltage, there is often the stipulation that V=0 at infinite. If...

Sep2709 12:58 PM
kanato

1 
2,215 
Hello
The Foucault experiment is based on the non rotation of the oscillation plane of a classical pendulum. Maybe...

Sep2709 12:39 PM
Cleonis

7 
2,049 
I recently purchased a new microwave oven, and there's a metal rack in it. The salesmen informed me that it shouldn't...

Sep2709 11:38 AM
kashiark

9 
5,777 
Could someone explain why Quality factor, which as I understand it, is 2pi *(maximum energy stored/energy dissipated...

Sep2709 10:43 AM
johnjaypl

12 
2,084 
Now, i am trying to prove that electric field inside spherical shell whose constant surface charge density \rho is...

Sep2709 09:15 AM
sophiecentaur

6 
5,381 
I know power is what causes devices to function in a circuit. What role does the voltage have in a circuit?

Sep2709 08:01 AM
sophiecentaur

3 
993 
Let's say I have a system with multiple oscillatory modes. Is it possible to have anything in this system that...

Sep2709 07:30 AM
thrillhouse86

3 
1,021 
I'm feeling a lot of difficulty in studying fluid mechanics..
can anybody please kindly suggest me a good book for...

Sep2609 08:43 PM
thrillhouse86

4 
2,450 
I'm a little confused on how the math is supposed to work out when you are adding an electric field from charges with...

Sep2609 05:01 PM
tinytim

5 
2,874 
Hi all,
I am doing a project on the speed limit on human sprinting. I was doing a thought experiment and then got...

Sep2609 03:48 PM
dimensionless

7 
1,522 
In the text, it is said that the polarization is just the response of the input electric field so they have
P =...

Sep2609 03:43 PM
KFC

3 
921 
Does a black hole radiate infrared waves? If not, then it could absorb some of the infrared waves from a colder...

Sep2609 03:28 PM
Skolon

8 
1,528 
On wikipedia it says that the pressure coefficient can be written as
C_p = 1  (V/V_{inf})^2
where V is the...

Sep2609 03:23 PM
naggy

1 
613 
Hello all,
Still at my frisbee modeling program, I started to ask myself how I could get better approximations of...

Sep2609 08:29 AM
thrillhouse86

3 
4,355 
I have a field ,B, I need to find the other field,A, such that
> __ >
B = \/ x A
I need numerical...

Sep2509 04:44 PM
ZapperZ

3 
1,163 