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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

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41,692 
No message

Apr2611 10:13 PM
rsq_a

0 
430 
Hi  I'm undertaking a selfstudy of calculusbased physics 101 using Sears/Zemansky's 'University Physics' text (12th...

Apr2611 10:06 PM
zkhandwala

4 
1,555 
Can matrix representations of any higher order Clifford Alebras be found ?

Apr2611 09:14 PM
sjhanjee

8 
1,108 
hello
Can someone write me the proof, according to Maxwell's equation for magnetic field behaves like a wave??
thanks

Apr2611 03:13 PM
royayash

4 
863 
1. how can the experimental result that the distance covered by a body during free fall is directly proportional to...

Apr2611 02:55 PM
HallsofIvy

2 
693 
Could anyone prove the moment of inertia of a thin walled hollow sphere using the y^2 + x^2 = r^2. I have only studied...

Apr2611 08:51 AM
Andrew Mason

1 
1,673 
I have a 2 questions regarding Newton’s third law and I will explain them using examples:
1. Body A is pushing...

Apr2611 07:37 AM
Doc Al

1 
997 
Hi,
This is my first post. Sorry for the mistakes it certainly contains.
I have two questions. First, is there...

Apr2611 03:55 AM
The_Duck

2 
2,132 
Hi,
Originally I had a question about a wire that allows electrons to move to higher voltage. I could not figure...

Apr2511 07:11 PM
RedX

26 
2,259 
How did Kepler exactly prove that the period squared is proportional to the radius cubed? If he didn't prove it. Then...

Apr2511 06:58 PM
nasu

2 
1,861 
In the solution manual (which I never trust) the tension vector of the rope that emerges from point A only has a...

Apr2511 05:27 PM
Femme_physics

2 
550 
This is a question about the text of Hailiday/Resnick/Walker 8th ed. p217  219. It's not a homework problem, but...

Apr2511 01:23 PM
Doc Al

8 
6,406 
If a body moves along a quarter of a circle and it is subject only to conservative forces, it is relatively easy to...

Apr2511 01:01 PM
aim1732

7 
1,649 
Refer to the attached picture,
condition : assume steady state
legend : red : insulated (adiabatic)
...

Apr2511 11:36 AM
Mapes

5 
1,428 
Please don't be too cruel. I obviously have to be doing something wrong but it seems to me that the gravitational...

Apr2511 08:46 AM
kowalskil

29 
4,013 
does chaos imply ergodicity?
or ergodicity imply chaos?
which classical system is known to be ergodicity for...

Apr2511 12:00 AM
wdlang

0 
557 
Hi everyone,
I'm working on a presentation for a physics class, and I've run into some difficulty. Our group is...

Apr2411 11:49 PM
michaelp7

8 
1,497 
I know the equation for emf: dflux/dt= dB/dt*A . In my case everything is constant accept the magnetic field and I...

Apr2411 07:14 PM
laxmaster08

28 
2,176 
I was wondering if there is any way to prove the moment of inertia of a thin walled hollow sphere by using y^2 + x^2 =...

Apr2411 06:48 PM
Curl

3 
2,452 
What is it that exactly causes an attraction between two masses?

Apr2411 06:23 PM
jtbell

8 
993 
Hi! I have been trying to understand how a "complicated" circiut can be transformed to show which resistors are...

Apr2411 04:09 PM
Grievery

4 
1,272 
In Classical Mechanics, are the three components of Angular Momentum L:
Lx, Ly, Lz
independent to each other?
...

Apr2411 03:49 PM
Bill_K

2 
2,405 
hi, i have a problem understanding why the wave equations are as such
if wave is moving left, it is
f(z,t) =...

Apr2411 01:12 PM
yungman

19 
1,923 
Whenever there's normal force there must be a force that causes it. Please explain how in this diagram of this object...

Apr2411 09:24 AM
I like Serena

41 
4,486 
Lets say I have a beam with a cross section made of half aluminium and half steel glued together. I would like to know...

Apr2411 05:00 AM
Studiot

7 
2,047 
Hello, I just read a book reagarding newton and his laws and had few questions about it.
What is Gravitational field...

Apr2411 12:18 AM
granpa

6 
1,189 
I'm trying to understand how to do diffraction problems with apertures and don't really understand how to work...

Apr2311 11:45 PM
Bhumble

0 
473 
How do (e^2)/(4Pi x epsilon x Planck constant x speed of light) cancel to give one and make the fine structure...

Apr2311 04:41 PM
RedX

2 
991 
I have almost completed whole the derivation of maxwell equations but didn't get the answer that what was the purpose...

Apr2311 04:31 PM
RedX

12 
2,253 
Hello,
In the design of electromagnets, why does the length of the solenoid matter? The magnetic field inside a...

Apr2311 03:58 PM
aalnaif

0 
381 
lets say i have a simple battery circuit
1) why is the static electric field ,produced by the potential difference...

Apr2311 02:09 PM
Phrak

14 
1,550 
Hi,
I'm building a pair of helmholtz coils to do a variety of magnetismrelated experiments. I've borrowed an old...

Apr2311 01:53 PM
jalilawan

1 
1,391 
We've always been using mm^4, but I see in my answer book (answer written below) that one solution says R^4. Is it the...

Apr2311 12:50 PM
jhae2.718

29 
3,584 
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 
1,260 
How we can prove (using geomtry and not differential equation) that the orbit of planet have to be a conic section.

Apr2311 09:02 AM
sorce

2 
607 
What would prevent this from being feasible 910nm382nm=528nm?????

Apr2311 08:12 AM
Redbelly98

3 
2,807 
hi everyone........
i was recently thinking about a generator that would work as per the principle of...

Apr2311 03:34 AM
A Dhingra

25 
4,296 
does anyone know why the forces point in such a direction?
basically, its a dipole (yorient) in an Efield
but...

Apr2211 10:55 PM
quietrain

15 
1,532 
Assume two charges, an electron and a proton, accelerate together. For example, let them start at (x,y)=(0,h) and...

Apr2211 05:33 PM
cosmik debris

4 
909 
Does anyone have any tips on how to properly determine the degrees of freedom in simple mechanical systems? I've done...

Apr2211 01:22 PM
Lavabug

0 
1,332 