Science & Mathematics - 18 June 2006

a weather balloon is launched from the ground(pressure = 1*10^5Pa, temperature = 27degrees) with a volume of 2cm cube. what volume does the balloon have when it has reached a height of 20km above the ground(pressure = 2*10^4Pa, temperature = -28degrees)

2006-06-18 19:35:18 · 2 answers · asked by Anonymous in Physics

2006-06-18 19:33:39 · 19 answers · asked by ridcully69 3 in Mathematics

An underground train from east coast to west coast that travels at 1200 M.P.H. It would ride on air/vaccum or magnetic field just like the plastic tubes at bank drive up windows. we have the tunneling equipment used in mines, name some problems with this project?

2006-06-18 19:29:04 · 11 answers · asked by not coming back 3 in Engineering

It's not just because any number multiplied by zero is equal to zero. You should use postulates and axioms.

2006-06-18 19:25:55 · 7 answers · asked by forgetfulpcspice 3 in Mathematics

It is not negative x negative = positive

2006-06-18 19:12:38 · 13 answers · asked by forgetfulpcspice 3 in Mathematics

If it is possible, can we spin the top (children's toy) on which the whip wound starting from the broad end to the tappering end?

2006-06-18 19:07:20 · 2 answers · asked by K.J. Jeyabaskaran K 3 in Physics

Sometimes, when I wake up in the morning, my eyes will open but I'm unable to move! I try and I try - nothing happens! I can see things around me moving in real time but I can't interact with them! I feel as though I'm paralyzed! Why is this? Does anyone else experience this?

2006-06-18 18:56:52 · 15 answers · asked by Anonymous in Other - Science

2006-06-18 18:55:45 · 12 answers · asked by Dinesh D 1 in Physics

2006-06-18 18:47:33 · 4 answers · asked by miraclewhip 3 in Mathematics

I've read that it's classed as high risk, and a supervolcano. And that hundreds of thousands of years ago, there were such massive blasts of ash from its explosions that they covered about half of what is now the contiguous United States. Another explosion could send the world into darkness and kill millions. Likely? Any sort of speculation, scholarly or otherwise, is welcome. ;)

2006-06-18 18:45:48 · 7 answers · asked by JStrat 6 in Earth Sciences & Geology

2006-06-18 18:34:25 · 6 answers · asked by celticshadow27 1 in Earth Sciences & Geology

Computer is concept that changed the entire world in last few decades. In the coming deacdes, are heading towards something else than computer ? Then what it would be ?

2006-06-18 18:33:52 · 16 answers · asked by abhiju20 1 in Engineering

2006-06-18 18:32:30 · 4 answers · asked by Anonymous in Other - Science

These two wires connect to the same stuff suggesting that they receive same type of signal. Whe, then, do they are kept separate ?

2006-06-18 18:27:38 · 4 answers · asked by Smiling_Umesh 3 in Other - Science

I have a book with denumerably many numbered pages; i.e, page 1, page 2, page 3, ... page n
On each page is written down a description of a set of positive integers
Describe a set of positive integers that cannot be described on any page of the book.

2006-06-18 18:25:10 · 3 answers · asked by Scott R 6 in Mathematics

2006-06-18 18:21:17 · 1 answers · asked by Anonymous in Engineering

For example: would a more ticklish person be more likely to be suggestable?

2006-06-18 18:20:37 · 5 answers · asked by jdiko33 1 in Biology

2006-06-18 18:13:14 · 2 answers · asked by Vette 2 in Biology

Or is it like the Heisenberg Uncertainity principle?
As soon as you start observing your thoughts they change? So in effect you can never really observe your present thoughts but you can remember the old ones.

2006-06-18 18:09:54 · 8 answers · asked by rekha c 3 in Physics

2006-06-18 18:09:36 · 7 answers · asked by Scott R 3 in Mathematics

I just watched Al Gore's movie, "An Inconvenient Truth", which is about global warming. I must say, I was impressed, or should I say worried, that global warming may actually be true.

However, I'm trying to scour the internet for more information. I found an anti-global warming website (see below). Are there any legitimate scientists out there who want to clarify the issue?

The main arguement the anti-global warming website makes is that nature produces 180 billion tons of CO2 a year, while human activity only increases that by 6 billion tons. Supposedly, that is insufficient to affect the climate.

However, Gore's movie shows considerable historical information about steadily rising temperatures and the amount of CO2 in the upper atmosphere.

What's the truth???

http://home.austarnet.com.au/yours/Dont_Believe_Global_Warming.html

http://home.austarnet.com.au/yours/Greenhouse_Bullcrap.htm

2006-06-18 18:06:41 · 15 answers · asked by pachl@sbcglobal.net 7 in Weather

2006-06-18 17:40:31 · 13 answers · asked by angelwen99 1 in Astronomy & Space

2006-06-18 17:37:45 · 21 answers · asked by vaithiyanathan h 1 in Astronomy & Space

2006-06-18 17:32:00 · 5 answers · asked by cirque de lune 6 in Astronomy & Space

and what is the radius?
plus, what are the coordinates of the circles center?

2006-06-18 17:28:25 · 10 answers · asked by Anonymous in Mathematics

2006-06-18 17:26:09 · 12 answers · asked by Anonymous in Mathematics

2006-06-18 17:24:50 · 8 answers · asked by bbbsbzamm 2 in Other - Science

Does anyone think that it is funny when someone puts "degree in mathematics" (or something else like that) in the source section, but are wrong?

2006-06-18 17:23:40 · 9 answers · asked by Eulercrosser 4 in Mathematics

who r they? have we found them?

2006-06-18 17:20:49 · 18 answers · asked by bharath s 1 in Astronomy & Space

Charles Darwin published his theory of evolution in the book, The Origin of Species, in 1859. At first, many people at the time rejected Darwin's idea. Even though the shook the world, please keep in mind that Darwin, of course, did not invent the theory.
As part of my research, I would like to find out how many people today still reject the theory, and why. Religion? Disgust? Do you have some other idea for the theory of evolution?

2006-06-18 17:12:32 · 24 answers · asked by Anonymous in Biology