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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
48,202 
Are all collisions between fluid molecules perfectly elastic? I was under the impression that they were not, but now...

Feb613 07:29 PM
Jorriss

1 
449 
Hi
Why is it that if you hit an object fast it requires less force to break it than if you hit the object slow and...

Feb613 02:39 PM
A.T.

6 
549 
As we go higher up a mountain, the air pressure decreases. But why would that cause the air density to decrease? Since...

Feb613 12:13 PM
cepheid

7 
912 
Hi all, I just completed my first circuits course (which I did decent in). One thing that has always been bothering me...

Feb613 11:50 AM
DrZoidberg

8 
911 
Hi all,
I was wondering if one on you could answer this question.
Imagine a person standing on a spinning merry...

Feb613 11:41 AM
jbriggs444

2 
546 
Since heat is transferred from a region of high temperature to low temperature if a few molecules have more energy, it...

Feb613 11:10 AM
AbsoluteZer0

28 
2,008 
Hello, I have this problem. I calculated the dipole energy of a dipole moment in an external field using the equation...

Feb613 10:32 AM
facenian

2 
464 
The wind is blowing with a force of 48 N against a kite that Taylor is flying, so that
the tail of the kite makes an...

Feb613 09:39 AM
CWatters

2 
788 
Hello everyone...!!!!
i have made different logic gates using 7402 ic (quad 2input nor gate ic). what actually...

Feb613 05:16 AM
sandeepmrocks

2 
731 
Hi,
The question I have is not for a numerical answer but for clarification.
Some of the questions involving...

Feb513 11:21 PM
chemica1mage

4 
775 
Hello,
I want to include kinetic friction into the harmonic oscillator.
A small blocks is attached to a horiontal...

Feb513 04:01 PM
nos

3 
946 
I was doing some homework problems, and I came across a couple I didn't know. I then realized I must have screwed up...

Feb513 12:07 PM
Philip Wood

1 
520 
Can moment of inertia be derived using just linear dynamics and calculus. Textbooks usually derive moment of inertia...

Feb513 11:37 AM
nos

1 
415 
hello every one
i have this pendulum:
http://s11.postimage.org/dis4kodc3/pend222.png
i need to stabilize the...

Feb513 11:33 AM
cres222

6 
1,603 
I need experiments that can be done for the research of graphite.. GOt any ideas??

Feb513 11:13 AM
CWatters

8 
1,325 
When metals are polarized, one end will be positive and the other end negative. So why won't the metal stretch out in...

Feb513 04:37 AM
sgstudent

0 
478 
From this link: http://www.chemguide.co.uk/atoms/structures/ionicstruct.html
it explains why NaCl has a 6:6...

Feb413 11:30 PM
sgstudent

0 
439 
Can one transmit electrons to create an electrostatic charge through electrostatic induction?
Can one use a gas to...

Feb413 09:47 PM
Menaus

4 
751 
Dear all,
how to prove that when the fuel injected per cycle decreases, the efficiency of the cycle
approaches the...

Feb413 08:14 PM
memoo

0 
665 
Hello! I am trying to construct (if it is possible) a potential formulation of an electromagnetic theory which permits...

Feb413 04:16 PM
cosmic dust

7 
950 
Newtons third law states that there is a counter force to every force. Unfortunately this doesn't seem to work for...

Feb413 10:08 AM
DaleSpam

20 
2,097 
I'm modelling a system that (at the most simple level) is a sum of superimposed waves with different amplitudes.
...

Feb413 09:00 AM
Happle

17 
1,591 
First time poster so I apologize any problems with location or content. By the way, you guys are awesome.
Just...

Feb413 07:15 AM
Ourives

2 
416 
Hi,
Does anybody know a nice formula for the capacitance of two metallic wire loops with equal radius R?
(The...

Feb413 06:46 AM
csopi

3 
641 
A friend of mine told me that in order for BackEMF to be generated,
The flux lines has to be parallel. Is that true?...

Feb413 03:11 AM
Miyz

19 
1,553 
Hi all you physics people.... we are building a highspeed robotic camera dolly here in LA for a film, and are trying...

Feb313 10:51 PM
Kuklish

8 
1,350 
According the the kinetic theory of gases, molecules moving along the x direction are given by Σx= (1/2) mv^2, where m...

Feb313 10:45 PM
Rap

2 
939 
I keep coming across this term and I cannot understand what this means pertaining to a mechanical system. I'm working...

Feb313 10:39 PM
indianaronald

6 
759 
In the MonkeyDart experiment (where a monkey lets go of a vine exactly the same time a dart is shot at him), the dart...

Feb313 08:00 PM
adam.kumayl

2 
845 
What is the experimental proof of Newton's law of universal gravitation? Specifically, how has it been established...

Feb313 05:24 PM
stevendaryl

22 
2,059 
Is the magnetic field purely a mathematical abstraction or is there actually something there? In other words, if a...

Feb313 02:28 PM
DaleSpam

5 
637 
Hi, guys.
I was wondering on Newton's Gravity Law derivation, and I found this page:...

Feb313 11:03 AM
Thiafon

2 
536 
I'm recently studying heat transfer processes. I saw that the heat current emited by a radiating body is given by:
...

Feb313 07:07 AM
tinytim

2 
625 
Say you are transmitting AM radio signals. You input an audio signal of 1khz which is used to modulate a signal of 1...

Feb313 06:19 AM
sophiecentaur

25 
2,666 
Please what this.
This video will describe Len'z law from 0:00 till 1:25
You can skip till 1:25 and see the...

Feb313 05:57 AM
Miyz

1 
578 
I understand many classical physics concepts but I feel like my understanding of the concepts are all scattered. I...

Feb213 11:31 PM
FeynmanIsCool

2 
650 
What if we wouldn't define a force as F=dp/dt but instead as a function of
F=F(p,q,\dot{p},\dot{q})
How will...

Feb213 11:07 PM
Simon Bridge

4 
477 
Hello pf,
Electrons are the charge carriers in metal conductor. while explaining about the fact the...

Feb213 07:38 PM
Darwin123

17 
1,768 
My physics sucks but does gravity affect electical charges inside devices... Does it affect magnetism in coils... I...

Feb213 07:29 PM
cosmic dust

1 
522 
I think that there is no such thing as centrifugal force .
Am I right ? is this force fictitious ?

Feb213 07:29 PM
stevendaryl

128 
8,350 