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Physics is the natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. One of the most fundamental scientific disciplines, the main goal of physics is to understand how the universe behaves.

» Physics Help Forum
  Physics Discussion Last Post Replies Views Forum
Instants: real or abstractions?
castilla
Today 11:59 AM
by ChipB
3 29 Philosophy of Physics
question about a bus and punch
ralphza
Today 09:48 AM
by HallsofIvy
4 32 General Physics
Help with elementary nuclear physics
programbot
Today 07:11 AM
by programbot
2 40 New Users
Why gas clouds collapse if the forces are conservative?
adamjackson
Today 04:05 AM
by oz93666
2 180 Physics
Does Fermat principle explain refraction inside water?
harve
Yesterday 11:21 PM
by harve
6 1,264 Advanced Optics
question about the force of an object hitting another
ralphza
Yesterday 10:59 AM
by ChipB
5 120 General Physics
What is mass? ( 1 2 3... Last Page)
Anonymous
Yesterday 09:55 AM
by studiot
35 2,935 General Physics
Acceleration in Special Relativity ( 1 2)
Astro
Yesterday 07:46 AM
by Pmb
13 1,062 Special and General Relativity
AP Exam Booklet problem
DaveyBoySmith
Yesterday 03:45 AM
by ChipB
1 46 Physics
Three surprising effects following The Postulates of Special Relativity
fergal
Yesterday 03:26 AM
by studiot
8 247 Special and General Relativity
refraction ( 1 2)
Germanlongstrike
Yesterday 01:06 AM
by harve
13 4,968 Light and Optics
Maxwell's law
harve
Yesterday 12:55 AM
by harve
9 3,749 Electricity and Magnetism
Race Car vs. Truck Tire Wheels Rot. Dynamics
DANNY
Apr 23rd 2017 09:55 PM
by DANNY
0 33 Advanced Mechanics
Draw the ray diagram of the spherical fish bowl
Blackmars
Apr 23rd 2017 04:06 PM
by Blackmars
1 39 Light and Optics
m=2(1 means light speed)
philipishin
Apr 23rd 2017 03:20 PM
by Pmb
3 157 Special and General Relativity
To all Atheist scientists
jlr01
Apr 23rd 2017 12:49 PM
by jlr01
0 29 Atomic and Solid State Physics
Bernoullis
GSXR750
Apr 23rd 2017 11:05 AM
by GSXR750
0 34 Thermodynamics and Fluid Mechanics
http://www.7supplements.org/embova-rx/
Accrorme
Apr 23rd 2017 03:50 AM
by Accrorme
0 41 Thermodynamics and Fluid Mechanics
Finding melting rate of a ice cube?
dieselfuel
Apr 23rd 2017 01:27 AM
by oz93666
1 53 Thermodynamics and Fluid Mechanics
I need help with the final part of a long momentum problem
pereeia
Apr 22nd 2017 06:31 PM
by pereeia
0 40 Kinematics and Dynamics
Question involving a cannon, cannonball, and relative velocity
pereeia
Apr 22nd 2017 04:11 PM
by HallsofIvy
3 63 Kinematics and Dynamics
Nondimensionalization of diffusion equation
DzoptiC
Apr 22nd 2017 04:06 PM
by DzoptiC
0 29 General Physics
fundamentals
sukalp
Apr 22nd 2017 12:34 PM
by HallsofIvy
1 43 Thermodynamics and Fluid Mechanics
Ray Optics
sukalp
Apr 22nd 2017 04:37 AM
by sukalp
2 50 Kinematics and Dynamics
convert from lux to candela
manel
Apr 21st 2017 04:54 PM
by Woody
1 53 Light and Optics
I don't understand diffraction
ultrashnotebel
Apr 21st 2017 05:41 AM
by Woody
1 53 Waves and Sound
[advice for a book]: QED applications in quantum optics
Stefano
Apr 20th 2017 01:03 PM
by Stefano
0 34 Light and Optics
capacitor circuit
Shariq
Apr 18th 2017 02:45 AM
by Shariq
0 79 Electricity and Magnetism
Momentum, friction and acceleration in a small sized light weight robot
HappyMoment
Apr 15th 2017 03:32 PM
by HappyMoment
0 92 Kinematics and Dynamics
Is there something fishy about the wave equation?
kiwiheretic
Apr 15th 2017 03:28 PM
by topsquark
1 83 Philosophy of Physics
Application of First law of Thermodynamics
skengdo410
Apr 15th 2017 01:32 PM
by studiot
1 78 Thermodynamics and Fluid Mechanics
Electrical Potential Difference Problem
Nitebreaker
Apr 15th 2017 03:38 AM
by studiot
1 79 Electricity and Magnetism
Wondering About Racing Line ( 1 2)
simracer
Apr 14th 2017 07:15 AM
by simracer
12 307 Physics
Transformer Fault Current
Ray77
Apr 13th 2017 12:46 PM
by studiot
1 97 Electricity and Magnetism
Hydrogen atom (perturbation theory)
TripleSmile
Apr 13th 2017 06:46 AM
by TripleSmile
0 84 Quantum Physics
Why engine efficiency drops for light loads?
KeThomas91
Apr 12th 2017 08:02 AM
by ChipB
1 89 Kinematics and Dynamics
Thermodynamis Help Please!! Heat flow, work done, etc.
mmmboh
Apr 11th 2017 10:16 AM
by studiot
7 2,487 Thermodynamics and Fluid Mechanics
Insulating efficiency
AndyW
Apr 11th 2017 01:47 AM
by AndyW
5 119 New Users
Uncertainties
cristinaclara
Apr 10th 2017 02:00 PM
by HallsofIvy
1 87 New Users
Gravity Generator ( 1 2 3)
tonk
Apr 10th 2017 04:40 AM
by ChipB
27 4,197 General Physics

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