Science & Mathematics - 16 January 2007

they should be diametrically magnetised with 2mm inner diameter and 8mm outer diameter..

2007-01-16 20:59:40 · 4 answers · asked by srikant 1 in Engineering

2007-01-16 20:55:40 · 3 answers · asked by cu p 1 in Mathematics

2007-01-16 20:55:13 · 2 answers · asked by trsnwf . 1 in Engineering

please solve this and tell how
2X+Y-Z=5
-5X-3Y+2Z=7
X+4Y-3Z=0

2007-01-16 20:33:18 · 4 answers · asked by dude d 2 in Mathematics

If a body expands it occupies some volume.
So for the universe to expand from where did this volume come from?

2007-01-16 20:33:01 · 5 answers · asked by karan 1 in Astronomy & Space

i nd this 4 my sch project.

2007-01-16 20:19:30 · 6 answers · asked by Misumi Nagisa fan xD 2 in Geography

Now this is not the 1st of April.
But I was listening to the radio yesterday, an article about Genetically modified animals. This was a BBC station, incidentally - Radio 4.

It was stated that the Chinese have introduced spider genes into a goat, and the resulting animal, when mlked, produces copious amounts of spiders webs. This web material is incredibly strong and is used in "kevlar" type applications.

Can anyone confirm or deny this statement? Is the whole world going mad? Or maybe it's just me and I should stop listening to the radio.....

2007-01-16 20:18:11 · 11 answers · asked by Not Ecky Boy 6 in Zoology

the say the hubble telescope can see 100 million light-years into the past. so let's say i'm on planet x a hundred million light years from earth w/ my own hubble...i'd be able to see dinosaurs and the rise and fall of the roman empire, even moses parting the red sea, right?

2007-01-16 20:15:05 · 12 answers · asked by Anonymous in Astronomy & Space

will we see america toppled?

its obvious that we are not well liked in the world now more than ever. every world dominating empire/civilization has fallen in the past. i dont think we are much different. maybe we have gotten too comfortable over here in the states...what do you think?

2007-01-16 20:10:12 · 8 answers · asked by T 1 in Other - Science

It is snowing right now, and i have to say first that thats rare these days (say for the last 20 years) in this part of the country.

So i have to say that i dont know that much about snow at night.

I know during the day on a ski slope you wear sun block because the sun reflects off the snow..

but does the moon reflect off it also?

if i walked outside right now it looks like late evening. This is a bright town, but not that bright. its not NOON bright,, more like sunset or later bright.

please help me if you can.

2007-01-16 20:09:34 · 7 answers · asked by clomtancy 5 in Weather

If a charge glass rod is held near one end of an insulated uncharged metal rod, electrons are drawn to one end. Why does the flow of electrons cease? After all, there is an almost inexhaustible supply of them in the metal rod.

2007-01-16 20:08:52 · 1 answers · asked by noob 1 in Physics

Why don't they head for the light of outside?

2007-01-16 20:06:10 · 12 answers · asked by Jammy1 1 in Zoology

shipboard operation.

2007-01-16 20:01:29 · 3 answers · asked by SC 1 in Engineering

2007-01-16 19:53:15 · 3 answers · asked by icon 1 in Biology

2007-01-16 19:52:25 · 14 answers · asked by mahmoud m 1 in Geography

A wallet costs 5/7 as much as a backpack and twice as much as a card case. If the total cost of the 3 items is $203 , how much more does the backpack cost compared to the card case ?

*Please show me your steps eg ,

52 + 35 = 87

Ans : 87 pencils

THANKS

2007-01-16 19:52:10 · 5 answers · asked by Dark A 1 in Mathematics

2007-01-16 19:49:11 · 7 answers · asked by lpjz290 2 in Earth Sciences & Geology

clockwise or anti-clockwise

2007-01-16 19:48:41 · 8 answers · asked by jasminecwx 1 in Astronomy & Space

it can be in anyway,just make sure it is related to the question n is scientific.

2007-01-16 19:46:54 · 8 answers · asked by jasminecwx 1 in Astronomy & Space

I used to read that at least 100000 were killed .

2007-01-16 19:45:56 · 3 answers · asked by citizen high 6 in Earth Sciences & Geology

2007-01-16 19:43:14 · 8 answers · asked by Ovi B 1 in Biology

Ok This is EXTREMELY EASY ! =)


A wallet costs 5/7 as much as a backpack and twice as much as a card case. If the total cost of the 3 items is $203 , how much more does the backpack cost compared to the card case ?

*Please show me your steps eg ,

52 + 35 = 87

Ans : 87 pencils

THANKS

2007-01-16 19:40:27 · 9 answers · asked by Dark A 1 in Mathematics

Is it a mixture or pure substance? mixture - 2 or more substances that are mixed together but not chemically combined. pure substance- made of only one kind of matter and has definite properties (pure substances consiste of compounds and elements) -compounds are pure substances formed from chemical combinations of two or more different elements. -elements are pure substances that can't be broken down into other substances by any chemical means.

2007-01-16 19:39:28 · 5 answers · asked by ♥ hey! 2 in Physics

Is it a mixture or pure substance?

mixture - 2 or more substances that are mixed together but not chemically combined.

pure substance- made of only one kind of matter and has definite properties
(pure substances consiste of compounds and elements)
-compounds are pure substances formed from chemical combinations of two or more different elements.
-elements are pure substances that can't be broken down into other substancea by any chemical means.

2007-01-16 19:37:36 · 5 answers · asked by ♥ hey! 2 in Chemistry

what is the begining of eterity the end of time and space the begining of every end the end of every place?

2007-01-16 19:33:59 · 10 answers · asked by T 1 in Other - Science

What does row 1 look like and what does row 2 look like?

2007-01-16 19:27:41 · 8 answers · asked by Dre D 2 in Mathematics

a) 4/15
b) 15/4
c) 1/2
d) 11/20

2007-01-16 19:26:43 · 7 answers · asked by Anonymous in Mathematics

Can somebody tell me that from what range protein present in normal average malesperm. (For ex: 2g -10g.) I need to know the range!

2007-01-16 19:20:22 · 3 answers · asked by gaurav1980 2 in Biology

I just had a random thought the other day, if we percept things by time and light, and it takes time for light to travel, couldn't everything that we see beyond our solar system not be there at the present time? Like when we look up and see a star, is it still there, or is it just a false perception? Tell me what you think.

2007-01-16 19:20:05 · 7 answers · asked by Nick 2 in Astronomy & Space

What will happen to Australia if the drought just continues to grow rapidly?Is that likely or not?And why all the parks are yellowish,as they should be green?

2007-01-16 19:19:25 · 4 answers · asked by kiko s 2 in Weather