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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
48,221 
With all the mechanical forces in statics problems I can assume the sense and I might get a negative answer which...

Aug1608 11:22 AM
merryjman

2 
1,238 
Hi all, new guy here. I am trying to understand the laws that govern a diesel motor. I know it compresses air at about...

Aug1508 10:07 PM
DaleSpam

1 
1,221 
Hi,
I was wondering about the path a charge placed in a solenoid that was flown through by alternating current...

Aug1508 05:10 PM
h0dgey84bc

1 
1,356 
hello
I just can't swallow the idea of mechanical advantage.
* if you have a 10 KG mass , you need , say , 100 N...

Aug1508 04:08 AM
ali171

6 
1,684 
I have a simple lever with two points of equal force, each at a different distance from the fulcrum.

What I...

Aug1408 08:43 PM
russ_watters

25 
3,310 
Looking for some pointers on how to approach this problem:
I'm considering a system like the following  two...

Aug1408 10:08 AM
matematikawan

5 
8,278 
I know a reference frame moving at constant velocity is a inertial reference frame.
Is a reference frame that is...

Aug1308 02:31 PM
DieCommie

3 
1,680 
what would be the speed of a bullet on decline fired from a pistol. firing angel is 45Deg. What would be the speed of...

Aug1308 04:31 AM
tinytim

1 
1,346 
In an electric current there must be forces that push electrons in a general direction (current). My question is, what...

Aug1308 12:09 AM
Phrak

12 
2,662 
Part of my early morning ritual involves making myself a nice cup of coffee.
I pour my aromatic brew into the cup...

Aug1208 06:26 AM
Aquafire

0 
976 
I recently caught a question that I realized was far more difficult than expected. Someone asked how hard they would...

Aug1108 06:37 PM
Topher925

10 
3,284 
Does anyone know how ships are degaussed exactly? I know that basically very thick electrically conducting cables are...

Aug1108 01:27 AM
greglaakso

11 
5,247 
Hi there! I was wondering if you folks could give me a little enlightenment.
Two days ago, I read a quote which led...

Aug1008 12:36 PM
Crosson

4 
1,109 
My friend and I were playing cards, and he was shuffling the deck. He claimed that the longer he shuffled, the 'more...

Aug1008 11:05 AM
Ygggdrasil

5 
4,822 
i have this doubt in teh famous brachistrone problem
The Problem
we have to find teh path y(x) connecting two fixed...

Aug1008 06:31 AM
dye

8 
5,399 
i need help understanding............im under the impression that even though the moon orbits the earth, and the earth...

Aug1008 06:08 AM
tinytim

9 
3,162 
Consider, a particle at position 0 at time = 0
Lets say it moves to 0.5 after 0.5 seconds
It moves to 0.75 after...

Aug908 08:31 PM
HallsofIvy

18 
1,989 
Looking at gravitational and electrical interation relations, I had an idea:
F = kQq/r^2
F = GMm/r^2
Couldn't it...

Aug908 11:32 AM
CompuChip

19 
3,671 
Can someone tell me what the value of d is in Faraday's Law? Thanks in advance.

Aug908 05:26 AM
Defennder

1 
1,160 
Hi all. I'm doing a little program for my own fun and I'm having troubles with the physics. I need to be able to...

Aug808 04:49 PM
NCGrimbo

5 
1,248 
is it necessarily true that we have
\frac{\partial T}{\partial q}=0?

Aug808 12:48 AM
pardesi

3 
1,103 
hello,
I was wondering if there is an equivalent gauss' law for gravitation like:
\Phi=4\piG*Menclosed
any help...

Aug708 10:26 PM
Phrak

5 
1,512 
From wikipedia:
In metaphysics, impenetrability is the name given to that quality of matter whereby two bodies cannot...

Aug708 11:29 AM
Kasper_NYC

7 
1,570 
Hi, I'd appreciate it if somebody would clarify a couple of things for me.
First, it looks like the concept of...

Aug708 09:52 AM
Pavel

0 
1,548 
This is from my Physics practical experiments.
The experiment is to find the refractive power of the prism for...

Aug708 03:42 AM
lichen

11 
11,442 
Can a classical circularlypolarized plane electromagnetic wave, that's bounded in time, transfer net energy/momentum...

Aug608 08:45 PM
cesiumfrog

18 
3,467 
In the solution of a pendulum attached to a wheel problem, I was initially suprised to see that a term of the form:
...

Aug608 04:15 PM
samalkhaiat

6 
2,022 
Hello everyone,
Why is it that in projectiles we learn that a mass launched horizontally will always fall towards...

Aug608 02:50 PM
mtanti

9 
1,422 
It is clear that Newton's first two laws of motion deal with motion: the velocity of a moving body is persistant, and...

Aug608 03:50 AM
Defennder

5 
1,611 
1. suppose a long solenoid is connected to a DC source and after a long time steady state has reached. And suddenly...

Aug508 01:05 PM
i_island0

4 
2,337 
If two conductive plates are placed close together separated by a suitable medium to act as a dielectric. It has an...

Aug508 10:44 AM
Defennder

6 
2,951 
What are the ways (both natural and artificial) in which em radiation is generated?
Here is one of the methods: We...

Aug508 08:38 AM
Tw15t3r

5 
1,829 
Hi,
It is supposed a metal container hermetically closed and completely filled with water; the container is...

Aug508 07:01 AM
Kasper_NYC

3 
2,534 
How is permittivity a function of frequency ?
And how is permittivity a function of frequency in relation to the...

Aug408 09:59 PM
morrobay

2 
4,150 
Does dew point temperature remain constant over altitude, pressure, and density? I have to admit that I am having...

Aug408 08:06 PM
tuoni

5 
2,657 
Could someone explain all the reasons that balls made to bounce are spherical? Bouncing = collision, so I guess I mean...

Aug408 06:39 PM
arildno

2 
916 
I have this question:
A particle of mass m moves under the influence of a central force; F = grad (V) where V(r)...

Aug408 09:55 AM
schrau24

0 
3,881 
It's been a while since I've been in science class and I was wondering if this was theoretically possible. It's so...

Aug408 04:03 AM
ZharAngel

1 
995 
Hi
Is there any connection between creativity and level of order?
wikipedia  Creativity (or "creativeness")...

Aug308 01:42 PM
vanesch

1 
1,443 
As it is known to all,the atmospheric electric field does exists.In fact,near the ground its strength is about...

Aug308 12:33 PM
russ_watters

1 
952 