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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
46,902 
if u have an uncharged,perfectly conducting hollow sphere of thickness t and radius R, and a point charge Q is placed...

Aug104 11:12 PM
turin

10 
1,251 
Does anybody know where I can find a good reference which describes in a simple way the relations between the Toda...

Jul2104 01:45 AM
Ludo_Z

2 
1,605 
Hi there, I am having a bit of difficulty with this problem dealing with a little more difficult application of...

Jul1704 02:17 PM
JohnDubYa

6 
3,962 
Would the magnitude of the net electric force on a charge +Q in a case where there is another charge Q a distance x...

Jul1704 08:18 AM
rayjohn01

7 
2,467 
hi to all friends.
what is a "volt"?
can you pl explain the meaning of that word and also "watt" (i know it is...

Jul1804 04:09 PM
JohnDubYa

52 
5,293 
Hello everybody!
I hope you could help me with my problem.
I am trying to simulate a program for a scale that...

Jul1904 08:57 PM
malzki

6 
1,608 
I am studying for my graduate exam in physics and came across a stange phenomenon and I would like to make sure I am...

Jul1704 11:55 AM
arildno

7 
2,836 
d=v_0t+\frac{1}{2}at^2
Why is it \frac{1}{2}at^2? Why not at^2 instead? I know that the reason is probably pretty...

Jul1904 04:10 PM
robphy

12 
2,782 
We have already discussed the definition of g to death, but I have another question regarding the use of "free fall." ...

Jul3004 10:12 PM
BobG

57 
6,930 
Every kid has asked the question on a swing, could I go all the way around? How fast would I have to go? I wanted to...

Jul2004 11:11 AM
rayjohn01

29 
7,701 
Hello all.
I am doing some research on the space shuttle for a class project, and I am having some problems with my...

Jul1604 11:47 AM
JonasS

9 
9,525 
Is a magnetic field carried by a particle? If two north ends of a magnet are brought together they push apart as if...

Jul2104 12:27 PM
turin

11 
1,276 
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Does anyone have solutions to problems in electromagnetic textbooks. I will pay for answers.
Books like...

Jul1604 02:07 PM
Paul J Whiteneir

0 
5,971 
I have a book that gives a formulae Angular Speed as same as the Angular Velocity.....is that true?
From what i...

Jul1704 03:29 AM
MiGUi

7 
7,861 
I have very little knowledge of physics, I'm 16 and won't be taking physics for another 2 years. But regardless, I'm...

Jul2004 12:10 AM
Ivan Seeking

8 
2,850 
Someone please tell me is I am doing this problem correctly.If I have a thick spherical shell with inner radius r,...

Jul2204 12:44 AM
krab

8 
5,285 
Ok, so I was late for work today (as usual), and I had my bacon sandwich in my pocket so that I could eat it when I...

Jul1904 06:48 PM
jimmy p

3 
1,488 
im only 15 n very interested in magnets, so i have many questions. can magnets have different strengths, and if so,...

Jul2104 11:13 PM
krab

18 
2,491 
I'm reading an astronomy textbook, and I'm not sure about some things. The textbook says the EM waves are caused by...

Jul2004 03:13 PM
turin

3 
1,315 
In Newton's Law of Cooling, we have the constant k, i was just wondering (most people will prolly laugh at me) what...

Jul1904 05:02 PM
maccaman

3 
3,383 
Hi, I have a problem about the capacitance of two cylinders eccentrically located one inside the other  with radii a...

Jul2004 10:24 PM
Gagson

5 
1,693 
Show that the energy associated with a conducting sphere of radius R and charge Q surrounded by a vacuum is
U =...

Jul2004 03:49 PM
turin

2 
4,825 
This is a thought experiment question.
I have three air molecules. Two have the same speed. The third is faster...

Jul2004 08:49 PM
russ_watters

1 
1,715 
Hey there! This question has be a bit confused as to where to start
Suppose you made a 4.70 kOhm resistor from...

Jul2304 11:42 AM
turin

6 
3,106 
is there any particular reason that antimatter will annhilate matter?
This question has been bothering me for a...

Jul3104 08:47 PM
Gokul43201

11 
2,171 
If a satellite in orbit has been slowed down, why does it spiral inwards?
The explanation I have been given is that...

Jul2204 02:24 PM
remcook

4 
2,346 
Hi! I would be extremely grateful if anyone could help me figure out this mess... I hadn't touched mechanics for too...

Jul2304 02:37 AM
eterna2

3 
1,700 
I saw this in an old, juniorlevel, classical mechanics
textbook and haven't been able to figure it out.
A...

Jul2204 11:58 AM
Doc Al

2 
3,116 
Ok i know this maybe stupid to some of you but maybe some might take interest mathmatically.
Ok i am not to Cal III...

Aug204 12:52 AM
woodysooner

10 
1,279 
just a really question about gravity, using the formula:
F = (G * m1 * m2 ) / r^2
where F is the force of...

Jul2204 11:49 PM
JohnDubYa

3 
1,053 
If a cart is moving in the xdirection and has a bar (not a pedulum) attached to its center that will rotate, what are...

Jul2304 04:45 AM
arildno

1 
887 
hello there
consider a spring that is fixed to a point (i have tried to draw a picture, so to make it clearer as to...

Jul2404 03:22 PM
vladimir69

2 
1,012 
After I read that Torque is a force that is both proportional to moment arm and force applied T = f *r , I tried to...

Aug204 01:37 PM
AmirSafavi

15 
6,810 
My textbook says the an object undergoing undamped, underdriven
harmonic motion...

Jul2504 05:22 PM
cj

5 
2,782 
As part of my research, i have to find 3 pratical examples that Newtons Law of cooling can be used for. So far i have...

Jul2804 11:53 AM
KrazyIBKid

2 
10,993 
The space entity whose quantity is "Length" is the "Line"
The space entity whose quantity is "Area" is the "Surface"...

Jul3104 08:52 PM
Gokul43201

13 
1,875 
A robot has a rectangular prism for a body. The body is 10cm high, 2cm wide, 2cm long, has a mass of 1kg and it’s mass...

Jul3104 04:58 AM
NohtSmrt

2 
1,326 
i just want to understand the integration process so just the math is what i want to understand. The problem is that...

Jul2804 10:58 PM
Gza

8 
1,362 
Hi,
Here's a true scenario: A 50 yearold female of average height and weighing 160lbs. steps off a curb and is...

Jul2904 06:30 PM
Jeekay

11 
2,112 
Is there a line between chaotic and not chaotic?

Aug104 12:56 AM
somy

10 
1,909 