Science & Mathematics - 22 August 2007

2007-08-22 19:03:43 · 9 answers · asked by miracle123jane 1 in Astronomy & Space

how does sunspot activity on the sun effect earths power grid and satellite communications

2007-08-22 19:03:26 · 3 answers · asked by Anonymous in Physics

I even recently saw on the discovery channel an idea that uses magnets for brakes so there would be no friction, somthing like that would work perfectly to generate more power when using the brake.

2007-08-22 18:58:56 · 12 answers · asked by Anonymous in Engineering

Professor Steven Jones has actually tested steel samples from the towers, he definitely found thermate traces. The one major thing he did point out was 'yellow molten metal' flowing from the impact floors. Its on all the news footage so theres no denying it happened. Now the only material on earth that can flow yellow in a liquid state is thermate (Im no scientist but I would presume its the sulfur that makes it appear yellow.) Now Ive seen the videos, so have millions of people , most without realising what they were looking at. But Steven Jones is a very learned man, he studies things like this, and I believe what he has found is definite proof of thermate cutting charges. If you believe Bush's story or not you need to watch a free to air doco called "911 Mysteries" it offers up a multitude of reasons why 911 happened the way it did, most if not all of them scarily believable.....
The film maker Sofia Smallstorm cannot tell you that it definitely was an inside job, all she does is present the facts and once youve watched it you will start thinking....that much I can promise you.
And one more thing while Im here........the Bush apologists will always argue that the steel didnt need to melt to cause the floors to collapse, thats fair enough BUT. What they expect us to believe is that the support clips all failed at the impact floors which caused a pancake effect right??? Seems like a reasonable argument, even the official report tells us the floors pancaked. But there is one major flaw that they cant explain and Ill tell you what it is. For a floor to pancake it has to fall through space to hit the floor beneath it, this breaks the supports holding up the lower floor and so on (about 80 times till the mass reaches ground level.) now even if we give each floor an amazingly fast half second to travel through that space crushing all the support steel, girders, steel mesh, interior walls, office furniture etc, the real world time for the impact floors to reach ground level should have been around 40 seconds!!! (thats 80 storeys collapsing in a half second each!!!!
That plainly did not happen because THERE WAS NO PANCAKING!!!! The towers dropped within 14 seconds, almost as fast as freefal speed!!! And the only way that could have happened was by severing the 48 steel columns at the core, and probably severing the foundation steel in the basements also, there is no two ways about it.
The Bush apologists physics dont hold up to scrutiny, they dont hold up to critical analysis, and why so many videos all over the net showing survivors and firemen, cops and reporters all mentioning explosions inside the buildings?

2007-08-22 18:58:43 · 11 answers · asked by Anonymous in Physics

2007-08-22 18:53:01 · 4 answers · asked by Hanna 2 in Mathematics

Cumene is a cmpd containing only C and H that is used in the production of aceton and phenol in the chemical industry. Combusetioni of 47.6 mg of cumene produces some Co2 and 42.8 mg of water. The molar mass is between 115-125. determine the empirical formula and molecualr formula.Please show work

i seriously dun get it

2007-08-22 18:26:34 · 2 answers · asked by Krazym0nkey 2 in Chemistry

2007-08-22 18:24:10 · 5 answers · asked by Anne 1 in Earth Sciences & Geology

2007-08-22 18:16:21 · 7 answers · asked by seth d 1 in Mathematics

2007-08-22 18:13:33 · 9 answers · asked by Anonymous in Physics

how do you had 4/9 = 13/18 and how do you get that?

2007-08-22 18:13:02 · 4 answers · asked by Question Asker 1 in Mathematics

4x^3-16x^2-9x+36

2007-08-22 18:11:18 · 7 answers · asked by Anonymous in Mathematics

Most mamals drink milk from their mothers when they are born until they can fend for themselves and then they never drink milk again, so why do humans not do the same?

2007-08-22 18:10:08 · 11 answers · asked by banditoauu 2 in Zoology

Can some one explain it

2007-08-22 18:08:18 · 4 answers · asked by peerjadema 1 in Chemistry

http://www.neopets.com/games/conundrum.phtml>
The Altadorian Archives are the repository of all Altadorian knowledge, science, and history. Thousands of books and scrolls populate its shelves. Amongst these books is the huge, multi-volume Encyclopedia Altadoria, volumes 1 through 9950.
The archivist misplaced his shopping list inside one of the books. He has a handy way to remember which volume he placed it in, though. The volume number was a four-digit number, in which all four digits were unique. If you take the largest possible four-digit number that can be made by rearranging the four digits, and you subtract from that the smallest possible four-digit number that can be made by rearranging the four digits, the number you get is volume number, but with the digits in reverse order.
In what volume of the Encyclopedia Altadoria did he leave his shopping list?
You don't have to give me the answer, I would just like some help

2007-08-22 18:07:57 · 5 answers · asked by Lindsey 1 in Mathematics

why the polymer(polysulfide) produce in experiment must be keep in water???

2007-08-22 18:06:23 · 1 answers · asked by nur asyikin s 1 in Chemistry

2007-08-22 18:05:16 · 4 answers · asked by rolotres 1 in Paranormal Phenomena

Question on my Chemistry Homework packet.
Please answer thanks!

2007-08-22 17:58:54 · 2 answers · asked by Anonymous in Chemistry

Nitrogen is made up of two isotopes, N-14 and N-15. Given nitrogen's atomic weight of 13.007, what is the percent abundance of each isotope?

2007-08-22 17:37:46 · 4 answers · asked by d 1 in Chemistry

algebra

2007-08-22 17:33:29 · 6 answers · asked by Anonymous in Mathematics

Considering one body to be very heavy with respect to the other, the barycentre lies almost at te centre of the heavy body. So angular momentum being conserved, we can apply kepler's second law, can't we?
If we can, then r^2 * w = constant, so w is a function of r
Now this means that if the trajectory of the small body is eliptical, its angular velocity will change with time < as r will change>. Now for change in angular velocity we need angular acceleration. Angular acceleration will be caused due to some torque acting on the body.
How can gravitational force, being radial, produce a torque?
Where am I going wrong?

2007-08-22 17:23:54 · 5 answers · asked by astrokid 4 in Astronomy & Space

I read this years ago and wondered if this was really true. I can't find verification on the web and wondered if someone knew?

2007-08-22 17:21:17 · 10 answers · asked by pgkaren 1 in Geography

how to prepare methanol (CH3OH) in the lab?
Thanks.

2007-08-22 17:13:50 · 1 answers · asked by Sicheng 1 in Chemistry

is pole star and venus are same????

2007-08-22 17:11:56 · 11 answers · asked by Amrita 1 in Earth Sciences & Geology

2007-08-22 17:09:06 · 8 answers · asked by Anonymous in Chemistry

A gaseous compound consists of element X (at. wt. = 12) and element Y (at. wt. = 1). Its empirical formula is XY2 and its density is 1.25 g/L at STP. What is its molecular formula?

2007-08-22 17:08:14 · 4 answers · asked by BioSci 1 in Chemistry

Control Groud

Independent Variable

Depebdebt Variable

Conclusion

2007-08-22 17:07:13 · 2 answers · asked by Anonymous in Biology

We had a quiz in chemistry and I was just wondering if my answers are right. The exercise was about "CORE ELECTRONIC CONFIGURATION", and these are my answers.:

Given/Solution:

1. [Na] Sodium = [Na] 2p6 3s1<--- Electronic Configuration

Last M: 3 and the Valence: 1

2. [I] Iodine = [I] 4d10 5d5

Last M: 5 and the Valence: 5

3. [Ar] Argon = [Ar] 3d4 4s2

Last M: 4 and the Valence: 2

-----> If my answers are wrong please explain. Thank you!

2007-08-22 16:55:16 · 1 answers · asked by Light 3 in Chemistry

it's weird really

2007-08-22 16:44:34 · 10 answers · asked by Anonymous in Geography

Scientist say in a few million eons from now, the expansion of the universe is so great, that the distance between atoms will be light years. Now scientists blame this on a thing called dark matter expanding. I disagree. Could it be possible that some parts of the universe may contain more mass and be pulling more of the universe towards it, warping space and pulling it further away from other clumps of great mass that generate great amounts of gravity. Sorta like how pepper clumps in groups on the surface of water and pulls other specks from other clumps. This make sense? if yes, do you agree or disagree? Why?

2007-08-22 16:42:02 · 9 answers · asked by PeguinBackPacker 5 in Astronomy & Space

2007-08-22 16:39:48 · 6 answers · asked by Monica 2 in Astronomy & Space