Science & Mathematics - 27 December 2006

The government's latest action to make air travelers feel safer is to force passengers to put all of their liquids and gels into a plastic bag and screen it separately from the rest of the x-rayed gear.
Does that really make any difference? Do explosives look that different from toothpaste in the x-ray machine?

2006-12-27 03:21:58 · 3 answers · asked by Zeffer7 2 in Chemistry

Im building a model rocket that is 6 feet long, diameter is 1 1/2inches, it weighs around 2lbs, I only need the rocket to fly 100feet without a nose cone. My father said I cant do it and If I can do it, hes giving me $1000. Im thinking of putting on 3 fins and 3 Dsize engines, one inbetween each fin. Im just wondering about the open tube, what affect will this have on the center of pressure? are 3 D engines overkill? I dont need it to go that high but I wont get the money if it cant take off. Thanx guys.

2006-12-27 03:21:28 · 3 answers · asked by xeraphile 3 in Engineering

Find the sum of the first hundred terms of the progression.

2006-12-27 03:21:10 · 3 answers · asked by Lorena L 1 in Mathematics

I'm not looking for what causes them to fade (sunlight, etc.) I want to know what the scientific explanation is.

2006-12-27 03:20:36 · 1 answers · asked by ludaquis555 2 in Botany

Find the sum of the first eight terms.

2006-12-27 03:19:26 · 8 answers · asked by Lorena L 1 in Mathematics

the second digits tells you how many ones there are in the number,

the third digit tells you how many twos there are in the number, etc.

For example, with the number 21200, there are 2 zeros, 1 one, 2 twos,

0 threes and 0 fours. What is the required eight digit number?

2006-12-27 03:18:34 · 9 answers · asked by Poison Ivy 1 in Mathematics

2006-12-27 03:17:23 · 4 answers · asked by Anonymous in Weather

Are there enough of wolves and cougars left to encounter each other?

2006-12-27 03:16:03 · 4 answers · asked by Perseus 3 in Zoology

2006-12-27 03:13:15 · 2 answers · asked by cherrie s 1 in Chemistry

2006-12-27 03:13:13 · 11 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-27 03:13:08 · 4 answers · asked by black white boy 1 in Biology

2006-12-27 03:07:59 · 9 answers · asked by Z 4 in Geography

2006-12-27 03:05:11 · 23 answers · asked by seg1802 2 in Physics

2006-12-27 03:05:04 · 1 answers · asked by surrena w 1 in Biology

Related to interated circuit(IC)..

2006-12-27 03:04:21 · 2 answers · asked by chandan27_sachin 1 in Engineering

We all know the breakdown of time units till the second from minute and hour. But, can anyone tell me how much time is ONE second made up of ?

2006-12-27 03:04:19 · 21 answers · asked by laya_garfield 2 in Mathematics

2006-12-27 03:03:44 · 9 answers · asked by massenger man 1 in Zoology

2006-12-27 03:02:40 · 8 answers · asked by cathybernales 1 in Biology

2006-12-27 02:59:51 · 3 answers · asked by malkeet s 1 in Engineering

2006-12-27 02:57:08 · 10 answers · asked by suba k 1 in Mathematics

2006-12-27 02:52:39 · 19 answers · asked by ANTONY C 1 in Earth Sciences & Geology

when a "superball" is dropped, can it rebound to a height greater than its original height? explain.

2006-12-27 02:52:14 · 6 answers · asked by Luis M 1 in Physics

2006-12-27 02:51:10 · 5 answers · asked by delgados12 3 in Mathematics

What happens to the gravitational potential energy when water at the top of a watefall falls to the pool below?

2006-12-27 02:49:26 · 6 answers · asked by Luis M 1 in Physics

I hate the book because of the religious mistakes which, according to my humble knowledge, are more than enough to send a person to hell; but I suspect that anyone who is sloppy with one part of a book is sloppy with other parts. Cana nyone point out obvious scientific mistakes he made? Really obvious.

2006-12-27 02:43:52 · 1 answers · asked by 0 3 in Physics

Why parabola is used as the shape of the cross section of a tunnel?

2006-12-27 02:42:32 · 2 answers · asked by e12w117_4 2 in Engineering

2006-12-27 02:42:11 · 5 answers · asked by Anonymous in Botany

What is the vitalism theory in organic chemistry and why is it false. Please try to explain.

2006-12-27 02:41:24 · 2 answers · asked by Anonymous in Chemistry

If the universe is a bubble that keeps expanding, then there must be a void of nothingness outside. But if there are many bubbles, then what is between them? It must be more space. Is the gigaverse finite? If it is then what is outside it?

Also there must be a centre and a beginning if our universe is finite.

2006-12-27 02:40:10 · 15 answers · asked by cloud 4 in Astronomy & Space

2006-12-27 02:39:32 · 9 answers · asked by Anonymous in Chemistry