Science & Mathematics - 20 January 2007

Please explain how you got the answer.

2007-01-20 01:26:37 · 4 answers · asked by BENNETH[[98]] 2 in Mathematics

2007-01-20 01:24:38 · 8 answers · asked by Ken65 1 in Astronomy & Space

Thanks!

2007-01-20 01:24:08 · 4 answers · asked by Anonymous in Botany

I'm not very good with metric..Thanks.

2007-01-20 01:22:51 · 11 answers · asked by Rosie 2 in Mathematics

I'm leaning on God is "out" of our time-space, which completes the picture of time and universe all beginning in one place, and to some degree, could explain why we have "free will" on a somewhat predetermined path (expansion of universe).

I'm hedging also that time-travel, were it achievable, would allow us (distorted human?) to see God at either end, beginning or end.

Any opinions?

2007-01-20 01:14:26 · 11 answers · asked by curly bob 2 in Astronomy & Space

can someone teach me...i have looked up reference book's but they give me the examples which i already know...this question is a bit different....

2007-01-20 01:14:14 · 6 answers · asked by Anonymous in Mathematics

For A level standard in particular.

2007-01-20 01:12:00 · 4 answers · asked by Im.not.a.hero 3 in Biology

Quantum Aether dynamics

2007-01-20 01:11:45 · 3 answers · asked by goring 6 in Astronomy & Space

Two men caught 36 fish. If X caught 5 times as many as Y, how many fish did Y catch

2007-01-20 01:09:22 · 11 answers · asked by ~Aqua.. 4 in Mathematics

OK, conspiracy nuts, let's ask this question 30 or 40 times today and set a record that'll never be broken! Come on, go for it!!

2007-01-20 01:06:28 · 7 answers · asked by Anonymous in Astronomy & Space

Thanks in advance

2007-01-20 01:02:46 · 5 answers · asked by gchild1983 1 in Mathematics

Of course, we hear a great dea about CO2 but hardly any thing about the affect of water.

2007-01-20 01:01:52 · 3 answers · asked by lester_day 2 in Weather

How much dirt is in a circular hole that is three feet deep, with a bottom of 1 foot in diameter and a top of two feet in diameter?

2007-01-20 00:58:13 · 8 answers · asked by Anonymous in Mathematics

2007-01-20 00:57:23 · 3 answers · asked by paul j 1 in Earth Sciences & Geology

Is it linear? How do you understand the concept of time?
This is something that really puzzles me.

2007-01-20 00:56:29 · 28 answers · asked by Stef 4 in Physics

I have made a project on solar electricity power generation and expected to say something about it ..I need your help for the following informations.
(1) How the whole process work?.(asking about the solar energy receptor)
(2) How the sun rays are converted in to electrical charges?
(3)What are the good and bad effects of solar power generation?
and so on..

I have search a number of site to know about this but didn't get satisfying answers.I have only two days in my hand to speak about this so please give some information,no links please.As loking for the above information in thos links may take time and donot have much time.
In other word i am asking you people to write a lecture/essay for me on Solar electricity/power generation.
Hope you people would answer me satisfactorily.

2007-01-20 00:56:28 · 3 answers · asked by wasim_ahmad48 1 in Engineering

i need a website that will tell me thet use of every single amino acid in your body.

2007-01-20 00:54:23 · 4 answers · asked by coolkenny45 2 in Biology

To discharge the charged insulator slowly, leave it in moist conditions.The water vapour in the air causes the excess charges on the insulator to leak away slowly.

2007-01-20 00:52:45 · 2 answers · asked by Anonymous in Chemistry

HI,

I am not able to solve this geometry problem.

http://img149.imageshack.us/my.php?image=scan00016ti.jpg

i can see AOC ,BOC,AOB are isoceles triangle because they are having same radius as their 2 sides.


but my book says, ABC is also isoceles apart from the above triangles. can you explain why ABC is isoceles ?



here is my book's solution which i dont understand.

combining I and II ,


so,ABC is also isoceles.

2007-01-20 00:52:45 · 5 answers · asked by sanko 1 in Mathematics

is north the direction perpendicular to the plane the sun and earth is on, or is north the direction to the north star? and which way is west? winter?

2007-01-20 00:49:15 · 7 answers · asked by smokesha 3 in Astronomy & Space

only plant cells.pls explain your answer.best answer will get 10 points.

2007-01-20 00:48:39 · 3 answers · asked by Cricket Fan 1 in Biology

2007-01-20 00:47:52 · 10 answers · asked by dass 1 in Astronomy & Space

I am in 11th grade and its for a chemistry project. I need only the preparation part of the above-mentioned topic. Thank u!

2007-01-20 00:46:43 · 2 answers · asked by Chaos 4 in Engineering

what are the indicators that you can say that a diet is "antihyperglycemic:?

2007-01-20 00:46:27 · 2 answers · asked by deadpisay 2 in Biology

2007-01-20 00:46:10 · 7 answers · asked by smartchic 1 in Chemistry

So the Earth revolves on its axis and rotates around the sun right? well, i have been told that one complete rotation of the Earth on its axis takes almost exactly 23 hours and 56 minutes... so what does it do with the remaining four mintues? just stays still?

2007-01-20 00:43:40 · 15 answers · asked by Smiley 3 in Astronomy & Space

Its about:
The Muhibah Company is a manufacturer of cylindrical aluminium tins. The manager plans to reduce the cost of production. The productional cost is proportional to the area of the aluminium sheet used. The volume that each tin hold is 1000cm cube (1liter).

1. Determine the value of h, r and hence calculate the ratio of h/r when the total surface area of each tin is aluminium. Here, h cm denotes the height and r cm the radius of the tin.
2. The top and bottom pieces of the tin of height h cm are cut from square-shaped aluminium sheets.
Determine the value for r, h and hence calculate the ratio h/r so that the total area of the aluminium sheets used for making the tin is minimum.
3. Investigate cases where the top and bottom surfaces are cut from
i.)Equilateral triangle
ii)Regular hexagon
Find the ratio of h/r for each case.

further investigation
investgate cases where the top and bottom faces pf the tinare being cut from aluminium sheets consisting shapes of regular polygon.from the results of your investigation what conclusion can you derive from the relationship of the ratio of h/r and the number of sides of polygon?

wastage occurs when circles are cut from aluminium sheet. which is not round in shap. suggest the best possible shape of aluminium sjeets to be used so as to reduce the production cost..

2007-01-20 00:43:12 · 1 answers · asked by i_shah459 1 in Mathematics

2007-01-20 00:43:06 · 6 answers · asked by smartchic 1 in Biology

How have scientists determined that the outer core of Earth is liquid?

A. P-waves speed up in the outer core.
B. P-waves dont travel though the outer core.
C. S-waves come to a complete stop in the outer core.
D. S-waves slow down and then speed up in the outer core.

2007-01-20 00:40:28 · 3 answers · asked by ursake_lastresort 1 in Earth Sciences & Geology

and which is tougher, i know lions work in packs, tigers are lone, but i thought lions were bigger and tougher. please correct me if im wrong. thanx.

2007-01-20 00:30:49 · 21 answers · asked by leo 2 in Zoology