Science & Mathematics - 18 October 2007

2007-10-18 23:46:26 · 6 answers · asked by Ruby Tuesday 2 in Physics

2007-10-18 23:29:55 · 22 answers · asked by Anonymous in Botany

2007-10-18 23:24:08 · 12 answers · asked by Diana B 2 in Zoology

2007-10-18 23:18:44 · 3 answers · asked by Anonymous in Other - Science

I'm not familiar by any means with evolution, but have learned how the first organisms learned or gained the mechanism required for death. I see how death is needed for population control but how could an organism develop mechanisms for death ?

2007-10-18 23:16:50 · 4 answers · asked by Anonymous in Biology

The water purifier we are using at our home is producing gallons of waste water.

2007-10-18 23:08:49 · 3 answers · asked by sunitha v 1 in Other - Science

2007-10-18 23:06:26 · 3 answers · asked by Marina K 1 in Chemistry

I know bases include all metal oxides and metal hydroxides. But how about alkali? Does all metal oxides and metal hydroxides also can called as alkali as long as it's soluble? Or alkali only include metal hydroxide that is soluble? Thanks.

2007-10-18 23:03:34 · 3 answers · asked by Steven L 2 in Chemistry

2007-10-18 23:01:43 · 10 answers · asked by red raven 2 in Weather

Solve for x

2007-10-18 22:48:36 · 5 answers · asked by zyntax24 1 in Mathematics

Same question for all the odd permutations with an odd number of plus signs.
Are both numbers equal ?

2007-10-18 22:46:53 · 1 answers · asked by Anonymous in Mathematics

2007-10-18 22:46:12 · 6 answers · asked by erson j 1 in Zoology

2007-10-18 22:38:45 · 15 answers · asked by kelvi 1 in Mathematics

2007-10-18 22:35:30 · 9 answers · asked by ʌ_ʍ ʍr.smile 6 in Mathematics

2007-10-18 22:34:46 · 8 answers · asked by Angelique 2 in Weather

I'm looking for ways in which evolution has aided both the knowledge of wildlife conservation (what we can do) and also specific conservation efforts (what is being done).

Also, is there any vital aspect of conservation which we would not know about if the theory of evolution did not exist?

2007-10-18 22:34:06 · 5 answers · asked by Anonymous in Biology

curious to know.

2007-10-18 22:12:30 · 4 answers · asked by Anonymous in Medicine

This has become something of an argument with my friends and I,we regularly pass through this park and the grass is literally covered in these white leaves.And we've all said they're from a different tree,so can someone please settle this once and for all and tell me what tree produces these leaves?
I believe the leaves were a bright green with a silver underside but now they've fallen they've turned completely white on both sides.
http://img100.imageshack.us/my.php?image=leafdscn1886mp7.jpg

2007-10-18 22:03:29 · 1 answers · asked by Anonymous in Botany

2007-10-18 22:02:14 · 2 answers · asked by hazeeq n 2 in Astronomy & Space

2007-10-18 21:52:51 · 2 answers · asked by Anonymous in Mathematics

2007-10-18 21:18:48 · 2 answers · asked by Anonymous in Mathematics

for example the item is based 700 and you sell it for 3500.

2007-10-18 21:16:50 · 6 answers · asked by II 1 in Mathematics

What is anti log of 3?

2007-10-18 21:15:02 · 6 answers · asked by sathish p 1 in Mathematics

2007-10-18 21:13:15 · 2 answers · asked by stanleynickarz 2 in Mathematics

2007-10-18 21:10:52 · 3 answers · asked by deeloc 3 in Physics

Prove that if you pick 10 numbers from 1 to 1000, then there exists a pair where the larger of the pair is at most twice the other.

I'm imagining this has to deal with either a proof by contrapositive or contradiction. In the case of contradiction I would assume that there exists a set of 10 numbers from 1 to 1000 then for all pairs the larger of the pair is greater than twice the smaller. But I cant seem to find a flaw with that. I also tried creating a set of 10 where the numbers were evenly spaced out as far as possible (100, 200, 300) but it holds.

Any help would be great, thanks.

2007-10-18 21:06:48 · 6 answers · asked by David 2 in Mathematics

1.Transform y=(3x+1)(x-2)+(x-3)squared in the vertex form...
2.Find the two positive integers whose sum is 19 & whose product is greater than or equal to 48 but less than 90. How many pairs of numbers will satisfy the conditions?
3.Find the value of k so that g(x)=kxsquared +3x -2 will have two real zeros.

...and please if you can, answer my first questions too. thanks!

2007-10-18 20:56:14 · 1 answers · asked by Anonymous in Mathematics

for example: if im going almost at the speed of light in my car, does my weight change? do i lose weight? gain weight?

2007-10-18 20:55:55 · 17 answers · asked by Anonymous in Physics

2007-10-18 20:49:17 · 6 answers · asked by Anonymous in Biology

2007-10-18 20:33:16 · 4 answers · asked by Cool2Fool 1 in Chemistry