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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,891 
When considering electric field in a dielectric media,there are two forms of Gauss's law:
\oint \vec{D}\cdot\vec{d...

Jul2713 08:40 PM
Simon Bridge

13 
687 
sorry i didnt use latex..I tried...its annoying
V=V(initial) + at....when you integrate both sides you get...

Sep1604 06:55 PM
Doc Al

3 
652 
Hi,
I hope it is a very simple mistake and easy to spot.
Suppose you start at rest so initial velocity is 0 and you...

Sep2511 08:37 PM
Ken G

7 
1,738 
Im wondering if somebody can show me how to derive the five equations used to solve these types of problems. Ive been...

Feb2209 06:49 PM
cam875

2 
1,717 
Hi everyone,
According to the equation Power = Force x Velocity or P = mav or a= P/mv, in order to keep say a...

Apr2409 07:37 PM
rcgldr

22 
5,012 
Hi, I have another question on the center of mass this time. I read a problem in my university physics book by sears...

Aug1704 09:36 PM
Cyrus

3 
4,025 
How do resistors of different resistances in series maintain constant current throughout a circuit? I mean is not the...

Sep310 12:15 PM
tasnim rahman

4 
5,063 
I do not know the exact electrochemical reactions which make a battery work, but I understand that the essential...

Apr2912 08:30 AM
phinds

16 
3,286 
Dear All,
Many thanks for reading this query. Actually, I am having problem in measuring the mode fields of Optical...

Nov1111 08:47 AM
taimoortalpur

2 
1,367 
My book says that you can change the temperature of a substance at constant internal energy by changing only the...

Jul2311 10:04 PM
gkangelexa

9 
3,034 
I'm programming a simple physics engine that works with rockets in space. I haven't done any physics since highschool...

Nov2910 11:33 AM
JacksonMarks

8 
1,206 
Momentum of a body can be constant while it accelerates? I mean if velocity increases while mass decreases...

Apr514 01:36 AM
Michael_25

8 
380 
I have little confusion, we know that if Lagrangian is from from variable \theta then conjugate momenta P_{\theta} is...

Jun2011 09:59 AM
vaibhavtewari

2 
1,287 
Hello all
I encounter a difficulty solving most simple problem related to constant power and speed of particle the...

Mar3005 02:09 AM
sAXIn

8 
3,803 
Can a thermodynamic system simultaneously exist under both constant volume and constant pressure at a particular...

Jun3011 02:58 PM
nasu

4 
1,810 
It is said that in an isobaric expansion of a gas pressure remains constant throughout the expansion process.
...

Apr2614 12:07 PM
Soumalya

14 
586 
hi ,this is my first post (and its not HW)
i currently study dynamics of rigid bodies
using (Hibbeler)
and theres...

Dec1110 05:39 PM
K^2

9 
1,080 
Assuming only air friction, do you think it is equally as energy efficient to reach a destination in a vehicle...

Apr2311 11:45 AM
Dmytry

7 
1,405 
Hi there! I am working on a project that requires some idea of adiabatic processes. I know the basics of the said...

Jan613 01:21 AM
andrien

4 
823 
Hi,
Does it make a difference if you use nitrogen gas or oxygen gas or hydrogen gas in the bulb ? Or they all give...

Oct2413 03:24 PM
Philip Wood

2 
480 
Hello
My story
Till today, I had never imagined that the High Heat Value (HHV) of fuels or their Lower Heat Value...

Aug2411 04:03 PM
lalbatros

0 
1,601 
In a question I tried to solved: "A house has wellinsulated walls. It contains a volume of 100 m3 of air at 300 K....

Apr2810 08:52 AM
HallsofIvy

5 
2,385 
why do most modern books claim the divergence of the E field is ρ/ε_{0} but in more classical books, and when you...

Aug112 03:01 AM
PhilDSP

5 
819 
Hey All,
I realise this is a slightly peculiar question  but does anyone know if there is any conserved quantities...

Oct1410 08:26 AM
thrillhouse86

0 
804 
By definition
total energy of a system= (internal energy U) + K.E + P.E
and
mechanical energy of a system= (flow...

Apr2912 01:14 AM
Ritz_physics

0 
512 
if an electric charge pops into space it's electromagnetic field is constituted everywhere in space instantaneously...

Jan209 09:08 AM
Vanadium 50

7 
873 
Does any one know of a constitutive equation for a an orthotropic temperaturedependent material that has different...

Oct113 08:06 PM
JTVT

0 
365 
I am trying to define the stress strain relationship for a viscoelastic material. For a Maxwell model, I have the...

Jan211 07:59 PM
Mapes

1 
4,653 
I've read conflicting descriptions of the relationship between constraint forces and virtual displacements that I'd...

May412 12:49 AM
ralqs

0 
696 
Hi!
I tried to compute an ideal barbellshaped object's dynamics, but my results were wrong.
My Langrangian is:
...

Jun1613 08:36 AM
Jengalex

2 
553 
In the textbook photonics 6 chapter 1 Example 1.1.1 saleh and Teich , I'm supposed to derive snell's law using...

Oct811 12:01 PM
med17k

0 
966 
could you please tell me how can the accelaration of masses m1 and m2 can be different.
i am in a great necessity.so...

Oct911 05:42 PM
PiBond

2 
2,210 
Can questions like the one given in the following pic be solved by taking the reference frame answhere in the middle...

Jul3110 09:41 PM
sid95

2 
2,026 
Can gravitation be a constraint force?

Feb913 01:39 PM
DaleSpam

1 
589 
the fundamental basis of the lagrangian formulation is the fact that the virtual displacement are perpendicular to the...

Sep1708 01:27 PM
Machinus

4 
15,438 
Suppose you are trying the solve the equation of motion of say a particle constrained to move on a surface...

Jul1012 04:33 PM
supernova1387

1 
915 
when a particle is constraint to move on a circle, what are the constraint forces

Feb211 02:41 PM
Studiot

12 
1,393 
http://m.youtube.com/watch?v=8X1x9RLaaxc
he tells number of contraints (he write no of pairs ) is nC2 how is it, i...

Oct2513 02:07 AM
DrClaude

7 
706 
the question is if we have the constraint:
g(q,p)C=0 for a real number C then we have that derivating this...

Jan1807 06:31 AM
Kevin_spencer2

0 
1,868 
My question is about the constraints in Hamiltonian viewpoint. I mean, where the constraints are put into the...

Oct1107 11:53 AM
somy

2 
2,363 