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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,018 
1. what is the importance (practical use) of moment diagram by parts?
2. Is it just another method of drawing the...

Apr1712 09:59 PM
jnlbctln

0 
1,011 
I am a bit confused by the definition of an isentropic process in the flow of an ideal gas.
isentropic implies...

Apr1712 05:37 PM
citrouille

4 
1,630 
How do I show that our equations for the E and Bfields for the oscillating electric dipole do NOT satisfy Maxwell’s...

Apr1712 03:57 PM
DrDu

5 
1,556 
So there is a daredevil named "Professor Splash" who is known for diving (belly flopping) from over 30 feet into a...

Apr1712 03:01 PM
DaveC426913

7 
2,045 
Suppose a closed loop with constant current around the loop. The loop is in a uniform constant B field. The force is ...

Apr1712 02:41 PM
yungman

8 
861 
an average one,not big or poney...

Apr1712 12:26 PM
chrisbaird

8 
1,139 
This problem is actually a simplification of something seen in a data visualization tool.
I think it is interesting...

Apr1712 10:21 AM
mfb

5 
689 
why newton had taken force as change in momentum per time?
i mean i need to get physical interpretation?what is this...

Apr1712 09:47 AM
mfb

1 
794 
Hello all, I am brand new to this forum and I am here for one topic that I need some explanation on. I am an AH64D...

Apr1712 07:38 AM
Pkruse

3 
3,467 
Hello forum,
I have been trying to understand how a cylindrical lens (plano cylindrical) forms images.
The images...

Apr1712 07:24 AM
fisico30

0 
1,176 
Hey fellows :)
How do you do these lovely days?
I'm at the end of twelfth grade righy now and I have to finish a...

Apr1712 12:04 AM
Polychoron

0 
903 
Or is the equation only for a steady state sytem?

Apr1612 10:30 PM
student93

0 
737 
As the tittle, can varying magnetic field ( well EM) cause eddy current in non magnetic conductors like aluminum? If...

Apr1612 09:52 PM
Creator

17 
2,932 
I have read that every body possesses some energy of vibration due to the thermodynamic character and it is equal to...

Apr1612 09:04 PM
Ken G

3 
955 
Hello,
I'm trying to figure out a way to do an integral of a speed/velocity function v(x) described as a function...

Apr1612 05:32 PM
Paul Czerner

4 
2,100 
We say that "heat is developed" in resistors when electric current flows through them..But we define heat as the...

Apr1612 01:56 PM
Philip Wood

6 
969 
Simple problem I've been thinking about,
How much energy can you store in a wheel of uniform mass density?
...

Apr1612 01:48 PM
K^2

18 
1,503 
Can static pressure be induced to becoming dynamic pressure through the use of "rightangle forces" with respect to...

Apr1612 12:24 PM
rcgldr

11 
2,075 
I've sometimes seen this argument being used:
The amount of vectors with a given velocity is propotional to the...

Apr1612 12:20 PM
Philip Wood

3 
688 
Using heat transfer equation to find out heat transfer rate but reached a puzzling result, where did I do wrong?
...

Apr1612 11:35 AM
Bob S

1 
1,062 
I am doing a senior design project regarding water hydration and did some tests to get a general evaporation rate. I...

Apr1612 09:21 AM
willem2

2 
1,065 
Hello all!
I was researching about magnetism to investigate the processes which occur when a magnetic object is stuck...

Apr1612 05:39 AM
Philip Wood

1 
654 
This may be an obvious question but I have no idea:
How can anyone link currentcarrying wires (solenoids) and its...

Apr1612 05:03 AM
Cluelessness

5 
749 
A smooth spherical particle with mass 2.5 kg collides with a second smooth spherical
particle of mass 6kg. Before the...

Apr1612 04:09 AM
tinytim

1 
966 
From my current understanding, a cathode is an electrode which has conventional current flowing OUT of it (or...

Apr1612 03:36 AM
marcmcgee

2 
812 
My question is quite a simple one, but one that is confusing me quite a bit. I was think why a ship needs an anchor?...

Apr1612 03:28 AM
Taylor_1989

4 
1,201 
I'm currently learning thermodynamics from Schroeder's "An Intoduction to Thermal Physics".
He explains that in an...

Apr1612 03:04 AM
annms

0 
669 
I understand that there are many different kinds of electrostatic precipiators but I'm referring to the type where a...

Apr1512 10:03 PM
sgstudent

3 
956 
Since the EulerLagrange equation is homogeneous, the equation of motion of a system of particles or a field is...

Apr1512 09:52 PM
pellman

2 
729 
Lets say, we have a cathode that emits electrons into the space under
field emission and create a space charge in...

Apr1512 08:11 PM
Stanley514

0 
752 
Hi,
Qualitatively: I am trying to decipher a method I've found in the literature, namely Whitham's method. It is a...

Apr1512 06:33 PM
nickthequick

0 
964 
While taking an AP physics practice exam, I encountered a difference in the way I solve a differential equation and...

Apr1512 04:26 PM
fizzacist

3 
541 
Consider a solid body at some constant temperature. Heat is transported by conduction and radiation. The radiative...

Apr1512 04:19 PM
Mute

2 
846 
The Green's functions for a 3d wave are like δ(r  ct)/r  so if you have static source at the origin that is turned...

Apr1512 01:35 PM
jjustinn

3 
1,687 
After looking into the lift force i hve been able to calculate most of the things i know. I have however been told...

Apr1512 12:34 PM
billy92

2 
1,387 
The definition of temperature is:
1/T = ∂S/∂U
but mathematically this is a bit weird. Because S = klnW, where W...

Apr1512 11:31 AM
Ken G

8 
1,468 
So, that is the question: Under what conditions does L=Iw hold? Where L,I,w are all scalars.
Some specifics perhaps:...

Apr1512 11:29 AM
Bob S

4 
2,045 
Hello there,
I was not sure if this belonged in the Classical Physics forum or the General Physics forum, so my...

Apr1512 11:11 AM
Ken G

2 
1,024 
Hi all, this is my first post on Physics forums so I apologise in advance if I have posted in the wrong section etc....

Apr1512 07:53 AM
haruspex

2 
1,162 
Hi
Can any one direct me to the correct Thermo formula to solve the following problem.
What is the time for water to...

Apr1512 07:32 AM
haruspex

5 
716 