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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
48,266 
The circular loop carrying current experience a tension in external magnetic field.how can this tension be calculated...

Sep614 04:00 PM
Meir Achuz

1 
141 
Suppose I have a cubic lattice of N^3 masses, M, each connected to six nearest neighbors with springs of constant k...

Sep614 02:22 PM
Spinnor

1 
178 
I have learnt in 1st year that the underdamped simple harmonic motion can be described by the differential equation ...

Sep614 09:34 AM
Philip Wood

5 
306 
Hi guys,
I was working on a formula for the optimal angle for simple pointlike projectiles freefalling under a...

Sep614 04:42 AM
voko

1 
174 
Need to know about coefficient of friction for my exam.
...

Sep514 05:34 PM
CWatters

2 
178 
I was reading Cengel's thermodynamics and noticed that he uses a thought experiment to show that there is no machine...

Sep514 03:51 PM
DrClaude

1 
182 
I've only recently started learning basic electrodynamics, but I don't understand why a loop of coil with a small area...

Sep514 11:51 AM
Philip Wood

1 
254 
Say you have a paramagnetic (or diamagnetic) sphere (or some other shape) and you apply a field of H = 10 Oe. Now, we...

Sep514 09:01 AM
physiguy

3 
210 
The physics textbook i'm working with doesn't seem to give me the required background for working with and...

Sep514 05:13 AM
Philip Wood

2 
243 
I have a homework problem I need help with. I don't want the answer given to me since I know I can answer it with the...

Sep514 04:59 AM
Drakkith

6 
224 
Hello everyone,
Assume that you have a flat plate, that is moving up and down in a sinusoidal motion with the...

Sep514 01:47 AM
elegysix

1 
205 
This was something mentioned in an electronics class today (it's an oscilloscope). I didn't copy it down when I...

Sep514 12:07 AM
Shyan

1 
176 
i ran a simulation that calculates the trajectory of a particle in the presence of a magnetic field from maxwells...

Sep414 11:43 PM
bluntwcrackrap

5 
370 
I am learning about transformers and from everything I've read I can see how its possible to create a 180 degree phase...

Sep414 07:51 PM
eng90

4 
237 
Hello guys,
I've had the following discussion at work:
We are currently using a suture with a nylon thread on a...

Sep414 07:08 AM
Simon Bridge

3 
205 
I have been noticing a few examples of systems that can extract energy or do useful work from seemingly random...

Sep314 10:43 PM
DaleSpam

18 
372 
Question: A bullet is fired horizontally aiming at an object which starts falling at the instant the bullet is fired....

Sep314 10:14 AM
SteamKing

4 
260 
I want to derive some equations for a 2D airplane's motion, specifically when it lifts off and lands. Can someone...

Sep314 02:28 AM
Simon Bridge

4 
259 
Hello, this is my first post. I'm not a big fan of long introductions, so I'm going to spare you my life story, for...

Sep214 10:10 PM
guitarphysics

5 
262 
This will probably end up being a stupid question with a simple answer, but if you don't ask and just accept things...

Sep214 06:17 PM
Andy Resnick

6 
269 
What does p = mv really mean? For example, why is there a physical law based upon the product of mass and velocity?...

Sep214 05:59 PM
DaleSpam

69 
2,273 
Hey everyone, I'm currently working on a project to construct the Bessel function of a vibrating surface of water in a...

Sep214 10:18 AM
Andy Resnick

1 
264 
So, I'm attempting to programm orbit in Unity game engine. So I need equation that shows r and phi depending on time. ...

Sep114 03:15 PM
GhostLoveScore

9 
271 
A free rigid body (no forces/torques acting on it) has a constant angular momentum. And yet, I am puzzled because...

Sep114 02:42 PM
samalkhaiat

9 
466 
One particular experiment that I remember from a visit to a Science Center is the one involving a revolving platform...

Sep114 02:02 PM
A.T.

43 
929 
If we had a van de graaff generator, near the sphere there is a metal plate ( not touching) and it's wired to the...

Sep114 11:10 AM
abdo799

7 
213 
My textbook says that the value of the coefficient of friction lies between 0.1 and 1.5. But I see no reason why it...

Sep114 09:51 AM
Murtuza Tipu

7 
285 
I am trying to make a fiber laser's dispersive beam into a collimated beam by using a convex lens (BBAR, f = 30 mm),...

Sep114 07:30 AM
nordmoon

0 
162 
A wooden box on a weighing scale weighs 1 kg. Inside the box is a gyroscope which is set spinning, and the box is now...

Sep114 06:35 AM
aeroseek

5 
218 
A disk of mass M and radius R is held up by a massless string. (The two ends of the string are connected to a ceiling...

Sep114 12:38 AM
Simon Bridge

3 
193 
I was wondering if we can somehow use the formula Potential Energy = 1/2K(x(x=Amplitude))^2 for a pendulum if we are...

Aug3114 06:53 PM
hongiddong

4 
167 
Two electrons, they have their electric fields and magnetic dipole moments. Their electric field is proportional to...

Aug3114 08:02 AM
Simon Bridge

14 
340 
http://en.wikipedia.org/wiki/Brewster%27s_angle
The dipoles that produce the transmitted (refracted) light...

Aug3114 03:55 AM
ehild

7 
260 
From what I know, the pressure of a gas is due to the collisions of its molecules against a surface. So I don't...

Aug3014 12:05 PM
Simon Bridge

6 
237 
My friend and I had this question and after physicsfighting each other we came to a conclusion that the feather...

Aug3014 08:08 AM
mal4mac

7 
294 
One way to solve the simple LC circuit with 1 inductor and 1 capacitor is to use the Lagrangian formulation of...

Aug3014 07:04 AM
gsal

3 
244 
Hey guys can someone please give me a good explanation on why in an RC circuit the resistor voltage is leading the...

Aug3014 06:51 AM
gsal

5 
195 
Wikipedia claims that the Chandler wobble (a deviation of the angular velocity vector of the Earth with respect to the...

Aug3014 04:32 AM
vanhees71

2 
246 
Dear Experts,
When we launch a satellite, we launch it from earth which is spinning, so the tangential velocity...

Aug3014 03:35 AM
rcgldr

10 
255 
Could anyone please explain or advice me where to read about principles of Schlieren image formation NOT in terms of...

Aug2914 09:19 PM
Steve Drake

1 
177 