Science & Mathematics - 26 November 2007

What are breeder reactors? How are they different from regular reactors? And what are the advantages/ disadvantages of them?

2007-11-26 02:21:14 · 3 answers · asked by ~XxRyanxX~ 1 in Chemistry

2007-11-26 02:07:52 · 2 answers · asked by Jovan D 1 in Physics

Where in the world does it get dark earliest? Isn't it Iceland or Greenland? I hear it gets dark at like 4 PM there. Probably wrong though :). Thanks for answers!

2007-11-26 02:06:45 · 4 answers · asked by Anonymous in Geography

2007-11-26 02:05:03 · 5 answers · asked by chel 1 in Geography

How did they know the science of creation?

2007-11-26 02:02:53 · 10 answers · asked by Tom C 1 in Earth Sciences & Geology

ummm....ya, ...this is a question for physics, and i really dunno WUT exactly 2 do (I'M CONFUSED!!!)

sooooo.. pleeeaaaseee answer, (and if u could, explain y the answer IS the answer.)

and ummm ... The atomic number of uranium is 92, so that's how many protons it has.

but pleeeeaaaaaasseee ANSWER!

and i'll choose "best answer" for the best answer (the fastest person to answer, but clearly explained.)

THANX!!!!!!

2007-11-26 02:02:09 · 5 answers · asked by DeeDee 3 in Physics

can somebody calculate the Star Time of the following times and years- i want to make star charts for my sister and i and my book is outdated...... please! or at least direct me to a website that can help

1. november 8, 22:01, 1992

2. november 13, 11:58, 1991

2007-11-26 02:01:33 · 5 answers · asked by JustATeen 1 in Astronomy & Space

In the primordial soup, there were apparently molecules such as amino acids and such. How did these organize themselves into the first living organisms?

Love Jack

2007-11-26 01:59:22 · 13 answers · asked by Jack 5 in Biology

how do i do the equation (e to the 1.5th power) on a scientific calculator?

2007-11-26 01:57:50 · 2 answers · asked by Mandy G 3 in Chemistry

A) Cl2(g) + 2K(s) → 2KC (s)
B) KCl(s) → K+(aq) + Cl- (aq)
C) KCl(s) → K+(g) + Cl-(g)
D) KCl(s) → K(s) + Cl-(g)
E) KCl(s) → K(s) + Cl(g)

2007-11-26 01:55:40 · 2 answers · asked by Christina S 1 in Chemistry

2007-11-26 01:53:24 · 4 answers · asked by Becky 1 in Chemistry

2007-11-26 01:51:08 · 18 answers · asked by Tracy Terry 2 in Astronomy & Space

2007-11-26 01:49:07 · 5 answers · asked by Jovan D 1 in Earth Sciences & Geology

please pick one answer..(x + 3) , (3x + 7), (x - 3), OR (x + 7)

2007-11-26 01:47:34 · 5 answers · asked by ilovedstny 1 in Mathematics

Thanks

2007-11-26 01:46:26 · 12 answers · asked by Anonymous in Mathematics

She´ll be turning 10 soon and is interested in stars etc. I´d like her to be able to see things with some detail (eg. the comet which has recently exploded, Jupiter etc) but don´t want it to be too large or complicated. Also, there are 2 younger brothers ......
Any suggestions?

2007-11-26 01:43:57 · 7 answers · asked by jenny 4 in Astronomy & Space

2007-11-26 01:42:46 · 14 answers · asked by Anonymous in Mathematics

I am looking for the name of the medication that was used to cure motion sickness until they realized it didn't work but used it for another purpose. It is now a common drug that is used but I cannot think of the name nor the purpose.

2007-11-26 01:40:50 · 4 answers · asked by baybluangel04 1 in Medicine

2007-11-26 01:37:13 · 12 answers · asked by Tracy Terry 2 in Astronomy & Space

you don't have to help me on the 2 questions, just one im happy enough, the thing is i do not understand vectors much, so theres no point of getting answers without understanding, but if you can do at least one question, with your knowledge i would be grateful :) thanks!!



1.
Prove that the line x = 1 + 2t, y = -1 + 3t, z = 2 + 4t is parallel to the plane x - 2y + z = 6. What is the distance between the line and the plane?

2.

Let A, B and C be three non-parallel vectors in R3. Express A x (B x C)
in the form α*B + β*C with scalars α and β :
(i) Explain why it is clear that A x (B x C) must be a linear combination
of B and C;
(ii) Choose an orthonormal basis ijk adapted to the problem and prove it by
standard properties of the vector product.
(Note: there is a way of choosing the orthonormal basis in a way which makes
all the calculations very easy

2007-11-26 01:36:59 · 1 answers · asked by nack nack 3 in Mathematics

2007-11-26 01:36:54 · 1 answers · asked by Anonymous in Chemistry

teacher mentioned caroll lehrman principle

2007-11-26 01:31:23 · 3 answers · asked by Anonymous in Chemistry

I'd like to find a reasonably priced telescope for my husband.
I want to wow him with a new toy, basicly . He needs something that offers the most celestial viewability and I have no idea (other than a reflector type) on what to get a beginner.
Which brands have more bang for the buck and which should I avoid?

2007-11-26 01:25:08 · 6 answers · asked by atomictulip 5 in Astronomy & Space

Find the area of the region enclosed by y=2x and y=x^2-15.

2007-11-26 01:21:48 · 5 answers · asked by pearlnruby89 1 in Mathematics

2007-11-26 01:21:34 · 7 answers · asked by Sony 3 in Biology

Which part of body is it in and how to remove it?

2007-11-26 01:12:02 · 8 answers · asked by Chickoon 4 in Biology

My symptom was only very high fever with shiverings for months.... When the fever stopped by the use of autoimmunity medicins (1 anakindra injections per day and 2 methotrexate pills per week) I then developed red spots in the hands and legs, with swallen ankles and wrists. I then passed to corticoids for 7 months now, which prescription I shall continue for.. another 6 months . I made all tests for lupus sarcoid, rheumatoid arthritis , Sjogren test, e.t.c with no result. The doctors cannot identify my decease. Meantime I already have Hasimoto decease and take levothyroxine every day.
Any idea what kind of desease is the one causing the fever ?

2007-11-26 01:02:34 · 2 answers · asked by Despina M 1 in Medicine

2007-11-26 01:02:25 · 1 answers · asked by Demx 1 in Earth Sciences & Geology

Do you know any websites on where I could learn about this?

2007-11-26 00:42:48 · 2 answers · asked by Jazper 3 in Earth Sciences & Geology

2007-11-26 00:40:36 · 2 answers · asked by e_20_20_student 1 in Botany