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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
46,045 
So my professor has been kind of lazy lately. he goes through a lot of problems on the chalkboard half way till he...

Oct2809 11:41 PM
cesiumfrog

2 
739 
HEllo All,
I'm self studying Thermal physics with Zemansky & Dittman's book, "Heat and Thermodynamics"....

Dec3013 06:13 AM
Dark_chaos

0 
594 
Hey. Suppose a mass is attached to two springs, one on each side, and they have different values for k. If you...

Sep2911 05:36 PM
darrenhb

4 
2,335 
What exactly does "fixed volume" mean in thermodynamics, for a liquid? Does it mean that the container volume is...

Feb911 11:33 AM
Studiot

1 
3,957 
So I have been trying to figure out some orientation data that I gather from a triaxial gyroscope, and figure out my...

Jul113 09:10 AM
DarthBane

9 
662 
I am currently redoing grade 11 physics and they have introduced the following formula,
\Delta d = v_1\Delta t +...

Oct1413 06:32 PM
DarthRoni

6 
779 
I came up with this question a while ago, and my Physics teacher and I just can't get the math to work.
Here it is:...

Jun710 11:08 AM
jack action

6 
2,178 
1) Does anyone have a general idea of how to experimentally validate or falsify the Third Law of Thermodynamics...

Aug1612 03:40 PM
Darwin123

4 
1,067 
1) What is adiabatic availability?
2) How can the state of a system change without changing amounts of constituents...

Jan3013 12:58 PM
Studiot

4 
979 
There have been some discussions here as to what type of processes create entropy rather than just move it around. It...

Jan2313 11:05 PM
Rap

22 
2,623 
I have been reading Lagrangian from Classical Mechanics by John R. Taylor.
I have adoubt in a derivation which...

Jan814 03:21 AM
darwined

2 
363 
If I make 2 wheels of identical size and weight, so that the only difference bewteen the 2 is that wheel A has most of...

Oct611 07:37 PM
cryora

6 
1,611 
I found this my mistake, it's amazing how for a very short period of time, Xray(and other lasers) can demagnetize a...

Dec1813 02:27 PM
Simon Bridge

12 
711 
When calculating the work done to magnetize a ferromagnetic material, calculating the hysteresis loop is the right...

Dec1713 03:18 PM
tinytim

1 
542 
B = μ0nI
Usually, the value of B is quite small...
I'd like to boost the magnetic field B to a much larger and...

Feb514 09:02 PM
DashIQ

3 
261 
When a wire has current I in a magnetic field B, there is the Lorentz force is it considered a conservative force or...

May2414 09:07 AM
vanhees71

30 
743 
When a wire is placed in a magnetic field and current flows in that wire work is done on the wire and be calculated:
...

Jun1814 01:04 PM
DaleSpam

20 
671 
I am currently working on a bimetallic thermometer using alumium and brass.
The coefficient of linear and...

Oct508 10:16 PM
gavin_gj

8 
7,232 
What would happen if say, there was a really long wire.. say 186,000 miles or so long. You apply a voltage on one...

Oct2507 12:57 AM
dashkin111

6 
2,889 
So I was playing around with logarithmic & exponential amplifiers in my lab class. I was looking at the following...

Mar210 03:57 PM
daskywalker

0 
2,454 
Hi all,
If we take the integral of tau (the resultant torque) times the angular displacement theta, with respect to...

Dec1407 09:17 PM
Shooting Star

18 
2,527 
Hi all,
I was giving a class on dilatation and I have proposed to the students a problem where two pieces of wire...

Dec2507 06:16 PM
DaTario

30 
3,505 
Hi all,
I would like to know in which circunstances the third law applies just in the weak form.
Thank you
...

Dec1307 11:09 PM
Shooting Star

6 
1,396 
Hi All,
I would like to know what makes a polarized capacitor to explode. Too much voltage? Tension in the wrong...

Mar1908 06:22 AM
DaTario

2 
1,874 
Hi All,
I have searched in some places but ´had no success in finding an explanation to the appearance of striae in...

Jul208 07:56 PM
DaTario

4 
1,349 
Hi All,
I would like to know what is the precise meaning of the internal resistance of a DC source of voltage. ...

Sep1908 01:26 AM
shreason

1 
1,037 
Hi All
Does anybody know if there is some formalism according to which we can describe the coulobian repulsion (or...

Jul2409 12:27 AM
dE_logics

11 
1,169 
Hi All,
Is there a simple explanation for the fact that in power stations (where electric energy is created) the...

Apr2709 02:25 PM
b.shahvir

11 
1,818 
Hi All,
I would like to know what is the main reason to build those metalic apparatus to receive the discharge of a...

May1609 10:23 PM
captn

6 
1,388 
Hi All,
Thermodynamics forbids perpetual motion based in its second law, but how should one deal with an isolated H...

Sep1109 02:15 PM
alxm

15 
2,108 
Hi All
I would like to know why is it so difficult to calculate by integration the electric potential energy of an...

Oct209 03:34 PM
clem

6 
1,014 
Hi All
When mixing water and oil, one produces an immiscible system of two liquid phases. Some cosmetic products for...

Feb310 04:30 PM
DaTario

1 
1,804 
Hi All,
What is the working mechanism in photographic machines that allows for obtaining High voltages from two...

Feb1310 07:52 PM
DaTario

11 
997 
Hi All,
I have been thinking of this lately and had no answer.
Consider we have a metalic bar rotating around...

Feb2110 10:21 AM
DaTario

3 
998 
Hi All,
The basis of Kirchhoff's second law is that an electric potential function is well defined, in such a way...

May3010 04:37 AM
DaTario

19 
4,754 
Hi All
Does anybody know if there is a clock whose mechanism is based on the increase of the entropy of a given...

Dec2510 07:48 PM
DaTario

9 
1,280 
Hi All,
Is there any way of explaining the attraction between North and South poles of two magnets without making...

Nov2010 01:26 AM
dgOnPhys

12 
1,749 
Hi All,
Consider a circuit with two loops like the figure bellow, where V1 and V2 have different positive values:
...

Nov1210 06:45 PM
Studiot

12 
1,642 
Hi All,
In wave theory, we learn that Huygens' principle apply and that every point in a wave front acts like it...

Dec1810 01:51 AM
DaTario

3 
2,164 
Hi All,
I would like to know how can one explain the assimmetry in Doppler effect. I will illustrate what I mean.
...

Dec310 04:42 AM
AndyNewton

7 
1,340 