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Quality answers to common physics questions
May25-09 10:31 AM ZapperZ 

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General Physics

- Nature and properties of matter and energy. For any physics topics not applicable to the categories below.
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The aim of this thread is to highlight recent (as in within the past 3 months) noteworthy physics papers that have...
Apr8-14 10:13 AM
166 160,089
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Apr22-11 05:27 AM
2 63,581
If you dip a paper towel into water, the water absorbs up the paper towel. These molecules are gaining height, and...
Sep22-09 07:51 AM
Andy Resnick
7 1,980
say there is a room 30 square meters by 2.5 meters high, completely insulated. if the room is at 25 degrees Celsius...
Feb16-11 06:08 PM
8 1,792
For a project of mine I tested crashing model cars into walls with medical syringes attached filled with varying...
Jun5-11 09:22 AM
4 2,000
I'm trying to make a simple water simulation for a platform game (some of you will probably think "why should I care...
Oct12-08 04:01 AM
3 4,539
I know that as water waves get closer to shore, amplitude increases via energy conservation, and from what I have read...
May17-12 12:41 PM
1 581
Why does water wave travel slower in shallow water than in deep water? In deep water, the water waves are mostly...
Jan31-11 07:49 PM
0 2,719
A standard demonstration of refraction is to show water ripples travelling from deeper to shallow water. The...
Mar8-09 05:04 PM
3 1,900 Now my understanding is that water slows down when it goes...
Jun20-12 09:13 AM
4 1,104
I got this question, A wave with a frequency of 10 hertz moves at 360 m/s. Part (a) What is the wavelength of the...
Mar23-06 06:08 AM
10 1,390
why water wave travel more slowly in shallow water than deep water?
Aug20-04 05:08 AM
4 1,463
I would like to know why water wave in a deeper region can travel faster than that of in shallower region. Please...
May28-08 08:06 PM
0 852
I have alot of ideas. Water is an amazing substance and there is no way we could live with out it. but with all...
May18-10 04:59 PM
16 3,421
I am trying to find a way to eliminate rust in well water. I was wondering if a water vortex could separate the rust...
Feb4-12 09:13 AM
6 1,684
can anyone tell me how the orifice diameter can affect the vortex forming ? no much info from internet , thx for...
Apr2-12 11:41 PM
4 1,373
hi to all!! Say i have a uniform flow of water of 1m/s.. if i put a propeller with known diameter and blade...
Mar7-11 08:04 AM
9 2,557
While replying to my question(s) please keep in mind that I'm not a math or science student - quite a layman in these...
Dec16-10 12:36 PM
16 1,290
Ive heard that at somewhere around 300 degrees Celsius (cant remember the exact number), you cant liquidise it...
Jul26-10 02:11 PM
7 3,748
Hi.. I'm a pilot and I'm trying to get a better grasp on meteorology. I'm wondering how exactly water vapor is...
Mar26-12 03:45 AM
1 1,130
hi to everyone, i have the following question, see attached image. a vertical pipe containing water is exactly 28ft...
Nov17-12 08:11 PM
8 1,092
If you apply tremendous force to water and cause extremely high pressure, it should compress and the temperature...
May26-12 10:49 PM
3 1,622
Hi, I am currently investigating stream of water under high voltage. My setup is using two aluminium plates connected...
Mar24-09 06:27 PM
13 2,136
Water triple point T is 272.16K
Apr5-12 07:44 PM
4 1,135
Hi all I need your help in computing the following : pls i need the formula if possible A water treatment plant...
Jul19-06 10:39 AM
0 780
need ideas for a contraption that will transport up to 10L of water across a 3 meters on a counter surface. ...
Oct10-06 10:20 PM
8 1,351
Hi all, I am looking to find out how much water expands when it turns to steam at the same pressure. like if you...
Jan20-08 12:26 AM
3 25,502
When water freezes to ice, it becomes so strong that we can move over it. This freezing takes place of bonding...
Jan4-13 09:12 PM
12 1,111
can sound travel from a body of water to air? if so, what might it look like?
Oct25-13 01:48 PM
3 421
While filling a watering bucket for the garden plants I noticed there was a small suction pulling the nozzle of the...
Jul27-12 02:23 AM
9 1,099
Water is being pumped into a tank on a ready mix concrete plant in Palm Springs CA Water is chilled to 45 degrees...
Sep2-10 05:00 PM
9 2,914
I'm trying to find out if the water temperature in a hot water tank (household solar system) varies substantially from...
Aug6-12 02:24 AM
15 1,539
I need to know how much the water temperature will change in a PVC pipe. I have a 1.2m long PVC pipe filled to 1...
Jul17-11 04:24 PM
1 1,709
Hey guys, I'm working on a project which demonstrates the venturi effect, by flowing gas through a nozzle...
Sep28-11 12:03 PM
Andy Resnick
5 1,737
Fill a bath tub with six inches of water is the water completely flat or level on top? John
Mar3-14 01:32 PM
14 850
So i noticed that when you put your hand really close to a spraying hose you don't really feel anything but when you...
Apr9-14 05:35 AM
6 357
Hi! I have a problem. Say I have a wooden ball, 5 cm in diameter, 40 grams, I drop it from a height of 1 meter...
May21-06 02:09 PM
5 1,898
Why will water seep upward, against gravity, through a paper towel that has one end dipped in it? Is it some quirk of...
Apr26-09 06:03 PM
3 979
My son & I will soon be building water + air-powered rockets for cub-scouts with soda-bottles and compressed air. You...
Aug6-03 06:32 PM
Mr. Robin Parsons
6 4,474
I'm Currently Making A Water Rocket And I Want To Obtain More Information About The Factors That Might Affect It From...
May23-05 05:42 PM
Adrian Baker
6 3,909
Hi, I have recently started a Matlab course and I have been given a task to write a simple water rocket simulator...
Oct25-08 02:28 AM
7 1,992
I have a question about rockets This involves the d and temp of the water m | - a | ...
Nov17-07 07:55 AM
0 3,144

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