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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
41,708 
An infinite string with linear charge density \lambda is put parallel to the axis of an infinite conducting grounded...

Mar2708 07:14 AM
pam

3 
1,589 
Ok, let me try to state this properly (I don't know much about this, so try to understand what I am trying to say...

Mar2708 03:13 AM
kenewbie

2 
945 
Let us consider a lift which is moving with a constant acceleration with a man inside. Now we know that the man...

Mar2608 06:55 PM
DaleSpam

8 
4,067 
Some examples in text book make me confused when these two works are discussed at the same time.
One of the works...

Mar2508 12:42 PM
variation

4 
1,046 
Hi, I have some questions about this equation.
P + (1/2)mv^2 + mgh = constant.
So obviously (1/2)mv^2 is the...

Mar2508 08:34 AM
optrix

13 
2,863 
Hi,
This is my question:
why is in the middle of ice, white ?
(have you noticed ?)
I guess the reason must be...

Mar2508 08:00 AM
Andy Resnick

4 
1,731 
It is often said that Maxwell's equations in differential form hold in special relativity while Maxwell's equations in...

Mar2408 04:41 PM
elivil

0 
1,055 
I've been trying to figure out how I can start with the NavierStokes equation and end up at the Reynolds Transport...

Mar2408 07:58 AM
Andy Resnick

2 
1,967 
I read that charge resides on the outer surface of a charged (electrically) body. Is it meant only for charged...

Mar2408 12:15 AM
manjuvenamma

7 
2,947 
What exactly is meant by universal law? I have read in a book a that Ohm's law is not a univeral law. I somewhat...

Mar2308 08:31 PM
DaleSpam

15 
2,855 
can someone explain the the relationship these have to each other? i know that they are either proportional or...

Mar2308 10:52 AM
tommy1

2 
2,298 
1. Feynman says all of electromagnetism follows from Maxwell equations.
2. Somebody (Pointing to a Feynman diagram of...

Mar2308 08:21 AM
jostpuur

1 
1,953 
hi
in what direction does the electrostatic force act when we insert a dielectric within a capacitor? and when we...

Mar2208 09:10 PM
optrix

2 
1,836 
Hi, I'm trying to build a physics simulator right now its just doing launching an object a a certain velocity and...

Mar2208 04:59 PM
D H

4 
3,031 
I have read that hot gases flow better than cold gases.
Why is this so? Less dense? Any good readings on it.
I...

Mar2208 03:17 AM
mikelepore

6 
5,128 
Why entropy is a state function ?

Mar2108 12:53 AM
nicksauce

1 
768 
I always wondered why time wasn't more of an issue in thermodynamics. for example, if I have a metal at temperature...

Mar2108 12:45 AM
unica

17 
3,012 
hello everyone
Consider extinction coefficient k, n becomes N=nik.
the text book says NsinA=N'sinB still holds...

Mar2008 10:28 PM
zhanghe

5 
6,765 
The Bernoulli Equation for nonuniform flows have a constant at the kinetic energy term which describes the velocity...

Mar2008 02:47 PM
Link

4 
5,670 
Ok so i have looked and looked for a simple way to under stand how to find drag using the coefficient of drag.
the...

Mar2008 01:34 PM
Cyrus

5 
1,341 
Are "direction of force" and "plane of application" valid concepts in mechanical physics, or are these terms I've made...

Mar2008 01:17 AM
Cyrus

4 
4,774 
Let us charge a capacitor and disconnect it from the battery. Let the capacitance, charge and voltage of the...

Mar2008 12:29 AM
manjuvenamma

5 
1,127 
Hi All!
I was hoping you guys might be able to point me in the right direction...
I'm after a online calculator...

Mar2008 12:07 AM
Integral

2 
10,533 
Hello everyone, I am dealing with a tough problem. I place a pencil on the edge of a table and I hit it. I want it to...

Mar1908 07:22 PM
wysard

15 
1,929 
Hello All,
I have had some interest in the effects of rotating magnetic fields and was doing some research on the...

Mar1908 06:05 PM
Jdo300

0 
1,274 
So, I believe I've got the math part down but, I'm having trouble understanding the theory. Can someone briefly...

Mar1908 04:22 PM
mikelepore

2 
2,808 
Can some one kindly explain or give a reference link that explains why it happens what it happens in electric...

Mar1908 04:10 PM
mikelepore

1 
996 
Hello all :)
I'm doing some coursework on eddy current braking atm and I just need to clarify that I have the right...

Mar1908 12:06 PM
Fointy

0 
1,844 
Can anyone tell what the angle of heel means?
(how to calculate it in a barge with a crane)

Mar1908 08:58 AM
Dili

2 
6,845 
Surrounding the planets usually exists the various atmosphere. Due to this atmosphere, one light ray crossing the...

Mar1908 08:10 AM
ZapperZ

4 
1,922 
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 
1,795 
on the corridor floor the static friction is 2.2N, the dynamic friction is 1.4N
when the corridor floor with water...

Mar1908 05:32 AM
TVP45

10 
2,755 
Hi everyone im very new here so please don' be too harsh with me :shy: I hope I posted this in the right section. If...

Mar1908 03:20 AM
kamerling

4 
1,389 
I'm just sort of looking for some clarification on some of this...
1) Say we have an ideal emf (battery, I...

Mar1908 02:12 AM
mikelepore

4 
1,328 
I have a question about the deduction of First Thermodynamic Law. The book that I have is written by Paul A. Tipler...

Mar1808 04:59 PM
Mapes

3 
3,337 
I am trying to determine the speed of one vehicle involved in an accident. I know the speed of the other vehicle, and...

Mar1808 09:33 AM
Danger

13 
1,835 
Dear all
When I first learned about forces and motion I was taught F=ma in terms of apply a force to a mass and the...

Mar1808 06:43 AM
DaleSpam

50 
5,567 
I got into a discussion about heat sink materials and was beaten up for suggesting that Aluminum is better than Copper...

Mar1708 09:15 PM
Steve_

11 
2,640 
Using a Laze light and curtain far from it 50 m. It is supposed that A is a light centre when having no aberration...

Mar1708 06:06 AM
einsteinooo

4 
966 
It is clear that stronger or faster the wind, the more force it exerts on, let say, a house or anything. So, can we...

Mar1708 05:21 AM
hadel

0 
6,330 