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If you are seeking help with a...

Apr2211 05:27 AM
ZapperZ

2 
70,312 
The aim of this thread is to highlight recent (as in within the past 3 months) noteworthy physics papers that have...

May614 04:32 AM
Cthugha

168 
189,886 
It is convenient to assign high randomness high information.
Random patterns, however, supposedly present no meaning....

Aug1814 08:14 AM
sophiecentaur

1 
200 
What does living in exponential times mean?

Oct2113 08:37 AM
DaleSpam

5 
202 
White light is composed of 7 wavelengths. And yet we show white light as one single electrical wave perpendicular to...

Jul3014 09:40 AM
voko

1 
202 
I'm working on a project in which I have to build a tiny 4 cm long heater. I did this with copperwindings stuffed in...

Aug914 06:18 AM
sophiecentaur

2 
202 
I want to calculate the energy applied to a slab of steel with a temperature rise that varying with time (t) as 
...

Aug1914 06:37 AM
HallsofIvy

1 
202 
Hello guys.
I was wondering about slides in a water a park and how they calculate the landing distance to predict...

Aug414 06:29 PM
Bobbywhy

1 
203 
How do you find the angle b/w tangential acceleration and total acceleration vector, Or angle between velocity vector...

Aug1214 01:26 AM
Lok

4 
203 
is it possible by any means to use a type of resonance wave to convert the vibrating motion of molecules in an object...

Aug1614 12:25 AM
Drakkith

3 
203 
Hello guys, i'm new in this forum, this is my first Thread.
I've started reading Robert Geroch's Mathematical...

Jul2914 06:34 PM
impblack

0 
204 
Hi, I was looking through a pair of 3D glasses last night at my mobile phone screen and saw something really cool. If...

Aug1314 06:34 AM
Orodruin

2 
204 
Hello!
I'm was wondering if there is anyone that could help a Marine Biologist finding a "simple" way to calculate...

Jan2214 12:58 PM
JoaoCorvina

2 
205 
Hi, I was hoping that somebody might be able to help me better understand/verify a Doppler model from the perspective...

Aug1914 08:09 AM
mysearch

0 
205 
Would anyone have a different explanation and maybe an example of radiation flux? Here is the Wikipedia definition...

Aug514 03:07 PM
Drakkith

3 
206 
Waves have energy without mass which can't be true in Einstein's equation
E=mc2
If you work out that E=0 (mass of...

Aug714 03:47 PM
Nugatory

5 
206 
Hello everyone,
I am beginner to comsol physics.I am trying to simulate a task which contains implemented lift...

Aug1414 11:17 PM
Greg Bernhardt

1 
206 
Can we say that positive potential energy means energy is given out by the system when it is brought to the present...

Feb2414 01:00 PM
DrClaude

2 
207 
I am doing a research project about wind pressure and the different uses one can achieve by changing the pressure,...

Aug914 08:56 PM
256bits

1 
207 
PLz find the attached image. Each link weight is given.
the 50 kg weight with link rotates about the red hinge...

Aug1714 09:32 PM
Drakkith

2 
208 
Suppose I have a transmitter and receiver and my friend in the next room also has it. Can we both talk with each other...

Y 12:33 PM
sophiecentaur

4 
208 
If m mass is complete ly distroy by e=mc2......then what happen about electric charge and magnetic energy?

T 03:01 AM
Matterwave

7 
209 
Hello (and sorry for this stupid question),
Could someone tell me the name of this Hamiltonian
H =...

Jul2914 09:26 AM
kinichi

5 
211 
Hi,
Can somebody give me the formula for pull force of ring magnet(permanent. not solenoid or electric) on a metal...

Aug814 01:55 AM
kvkskumar

0 
211 
I have couple of question related to what motion is;
1) What is the definition of motion in today's physics?
...

Aug1414 11:44 AM
Drakkith

1 
211 
Hello,
Is spinning an object 360º horizontally a flip or a rotation? This is not homework, this is work work.
...

Jul2814 04:28 PM
Nathanael

3 
212 
Hi,
I have a thought experiment I'd like to share along with a couple of quotes. First, we consider the moment when...

Jul2814 11:30 PM
berkeman

1 
212 
Hi there
Can any one tell what is the meaning of boundary conditions for temperature distribution in a flowing...

Aug614 09:03 AM
Chestermiller

1 
212 
Ok here is the question that is being asked. Note that I know how to solve it one way, but when I go about trying to...

Aug1414 02:06 PM
Teachme

6 
213 
What does spectral response mean in context of filters and delay lines?

Jun1214 08:14 AM
UltrafastPED

1 
213 
Hi,
I'm struggling to understand why we never consider normals when doing torque questions?
One on the top of my...

Jul3014 09:18 AM
Jd0g33

2 
213 
What are the high symmetry directions for a twodimensional oblique crystal? Please provide a figure of the...

Aug314 06:07 PM
D_K_

2 
213 
Hello all.
I am currently studying electromagnetism with Griffiths' books, and I have already donde electrostatic...

Aug1714 03:13 AM
almarpa

2 
214 
I imagine it depends on the chemical makeup of their atmospheres.

Aug1614 04:51 PM
sophiecentaur

2 
214 
A coworker recently shared an article with me that demonstrated a sound pulse traveling faster than c.
After...

Jul2814 04:51 PM
PapalPhysicist

5 
215 
When 2 unequal vertical forces act on the 2 ends of a vertical rope, how do I calculate the tension at the midpoint?...

Jul3114 01:21 AM
tasnim rahman

1 
215 
Okay, so Im looking at this article (link at bottom) and it says they have a microorganism liquid contained inside of...

Aug1214 10:47 PM
Simon Bridge

1 
215 
So I've recently read newton's third law violates the principles of relativity. I only know how to prove conservation...

Aug714 08:04 PM
jtbell

1 
216 
This is a question about how much general knowledge about science and math has changed since Einstein's death about 60...

Y 10:45 AM
A.T.

5 
216 
Hello all!
I've been trying to go from the second to the third equation shown in the image.
Here,...

Jun114 12:49 PM
carlosbgois

0 
217 
A certain laptop says it can withstand 1500 gs.
Assuming that it's dropped onto a hard surface, and ignoring air...

Aug114 11:50 PM
Simon Bridge

1 
217 
Hello everyone, I have a question regarding the pattern resulting from droplets of fluid onto a hard surface.
...

Aug1214 04:26 AM
Lok

2 
217 