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If you are seeking help with a...

Apr2211 05:27 AM
ZapperZ

2 
70,490 
The aim of this thread is to highlight recent (as in within the past 3 months) noteworthy physics papers that have...

May614 04:32 AM
Cthugha

168 
190,440 
When the dipole makes an angle with an electric field, its potential energy is given as the work done in bringing the...

Jul1814 10:58 PM
DeltaČ

7 
1,528 
can anyone proove the following
"IN A LOADED STRUCTURE THE POTENTIAL ENERGY OF THE SYSTEM IS MINIMUM IN ITS...

Sep2505 11:04 AM
Rade

2 
1,169 
What is the potential energy of a pendulum at any point?

Jun2314 12:48 PM
SpY]

4 
435 
So I've always been confused about this. Suppose you have your normal pendulum: length L, mass m, and angle Θ.
When...

Mar1814 08:25 AM
DaleSpam

9 
478 
Something I realized the other day  trying to figure out what the gravitational (or electrostatic) force would be...

Oct2906 08:14 AM
arildno

4 
3,101 
the potential energy of earth is infinity or zero?

Oct2509 09:45 AM
russ_watters

3 
1,388 
I was writing a script to help me calculate gravitation and various other things when i noticed i don't know how to...

Nov213 07:52 PM
pixelpuffin

4 
906 
Frankly, I think gravity should be repulsive force on the basis of a simple energy argument which I will now make. I...

Jun2710 08:11 AM
DaleSpam

5 
1,153 
Consider an atom having multiple protons and neutrons in its nucleus, which of the two nucleons will have higher...

Apr2214 10:02 AM
UltrafastPED

2 
314 
Hi folks and happy new year,
As usual i have been leafing through some old physics books and have stumbled across...

Dec2903 03:24 AM
beckett

1 
1,688 
While i don't do physics i do study mathematics, and am very interested in the field of mechanics/pure/physics.
I...

Jul1204 06:41 AM
maverick280857

8 
1,705 
Here is my question.
For example if i am standing on top of the empire state building and i define that to be...

Oct711 10:42 PM
Vorde

4 
1,937 
Okay this might be a stupid question but here goes.
I know that if I place two bar magnets with their N sides...

Sep1009 08:40 PM
RestlessMind

2 
1,096 
I simply can't wrap my head around a test question I received.
I'll relate it as best as I can remember:
"A...

Feb1111 03:06 PM
Doc Al

5 
2,096 
Hi
I have a simple question about thinfilm peeling physics.
A lot of papers say that the potential energy term in...

Jan1711 04:39 AM
jangheej

0 
1,003 
I attached a graph of a potential energy vs. position graph. My question is, the relative minimum is characterized as...

Dec1912 04:42 PM
haruspex

6 
2,218 
JO is "loaded" into a springloaded "cannonball" launcher as PICTURE. She lands into a springy trampoline that is...

Nov2210 04:24 PM
tinytim

1 
687 
This is not an homework (it could seems).
Let's suppose to have 2 vortexes locate in the cartesian plane (x,y):
the...

Nov1508 03:21 AM
Allamarein

0 
2,058 
In electronics it is customary to define the potential of ground (thinking of the earth as a large conductor) as zero....

May2510 11:16 AM
Studiot

2 
1,915 
how does the potential increases on adding positive charges and decreases on adding negative charges.
why does the...

Nov2404 03:02 PM
rayjohn01

2 
3,603 
Just wondering if we have a nonconducting spherical shell which is uniformly charged and we know the potential at the...

Jun912 07:34 AM
algebrat

1 
1,108 
a flexible but inextensible chain having uniform mass density is suspended between two points (of course not...

Apr2412 07:53 AM
haruspex

2 
825 
Here is a newbie, goofball question. How much potential nuclear or atomic energy is there in the human body? I know a...

Jan1108 09:15 AM
yogi3939

2 
5,685 
I'm studying electromagnetism through a book of Purcell and I'm having trouble in some point...
The book tells me...

Jun810 07:04 PM
Taturana

6 
3,157 
Hello physicians.
Consider the following Brownian motion particle:
\dot{x}(t)=\alpha(t)+\beta(t)\eta(t)
The...

Jun1113 09:42 PM
Steve Zissou

6 
644 
We are presenting you a very perplexing but interesting problem
which you may have probably encountered in...

Aug2811 02:58 PM
clem

2 
1,163 
What would it mean when you subtract potential energy of a higher elevation from the summation of energy(kinetic +...

Aug2111 09:19 PM
Dr_Morbius

12 
4,422 
I would like to consult in private with with young talented physicists
on a variety of topics. Including, but not...

Jul2208 05:00 AM
copiousergs@gmail.com

0 
578 
Hi,
I have a fresnel lens from a old big screen tv and it is roughly 1 meter square. The focal point comes down to...

Sep2211 05:01 AM
sophiecentaur

9 
13,158 
I was reading electrostatic and found out that the electric field is just the negetive divergence of potential . My...

Oct812 06:59 AM
Shan K

7 
913 
When potentiometer is used to measure and compare emf of cells, how that balncing point is reached?..................

Jan1612 07:22 AM
fbgiant

2 
2,541 
I want to find out the potential difference between two given points with maximum accuracy. Which one should i choose...

Oct2111 10:15 AM
xts

10 
3,072 
If I add a potentiometer to my circuit will I be able to control the brightness of the LED with the meter?

Mar1813 03:50 AM
davenn

6 
745 
ok i understand how the conversions work and everything... 1 kg = 2.2 pounds... i was just thinking about this for a...

Jun1008 11:34 AM
D H

9 
12,364 
Does anyone know what the equivalency is? I tried to google but I get a bunch of star trek websites for some reason...

Dec2410 09:36 AM
Pengwuino

6 
6,261 
it was really tough to me to understand the relationship between the Newtons and Pounds, not in mathematical term that...

Mar411 06:08 AM
alyafey22

4 
2,172 
I've been looking around and some places tell me pounds is a english unit of weight and other tell me it's a unit of...

Nov1011 03:45 PM
D H

41 
27,949 
Hello, I am a cop and I have a problem that we are unable to find an answer for at the station.
We want to put...

Aug112 02:37 AM
Lsos

12 
2,056 
Hi everyone!
This is my first post in these forums, so I apologize if this topic is a little off course from the...

Sep1408 02:45 AM
Unspeakable

0 
2,658 
A pound being a measure of weight (force)and a kg being a measure of mass  how would I convert lbs. to Kg? If F=ma,...

Feb2704 02:13 AM
russ_watters

6 
47,319 