Science & Mathematics - 6 November 2006

(-1)(-1)=1
sqrt[(-1)(-1)]=sqrt[1]
sqrt[(-1)]sqrt[(-1)]= sqrt[1]
so
i x i =-1 =1

2006-11-06 02:06:36 · 7 answers · asked by meg 7 in Mathematics

Did NASA actually land on the moon or were they faking it?? I need some opinions for my science teacher!!!

2006-11-06 02:02:26 · 14 answers · asked by Anonymous in Astronomy & Space

does group 2 metals form basic oxide and base or only base.

2006-11-06 02:01:15 · 2 answers · asked by bjm 1 in Chemistry

2006-11-06 02:00:53 · 3 answers · asked by Arran T 1 in Zoology

Magnesium is an element on the periodic table

2006-11-06 02:00:30 · 2 answers · asked by $ ma 1 in Earth Sciences & Geology

2006-11-06 01:59:33 · 1 answers · asked by limck_dcp_cls 2 in Chemistry

Would you be able to talk to the guy in front of you?

2006-11-06 01:59:22 · 17 answers · asked by Polo 7 in Physics

2006-11-06 01:56:06 · 8 answers · asked by Anonymous in Chemistry

Definition of nation and country and their differences.

How do you describe you first and you 2nd idenity?

2006-11-06 01:55:48 · 8 answers · asked by Ygil 2 in Geography

any little help would be great.

A steel beam 10m long is installed in a structure at 20 degrees Celsius. What are the beams changes in length at the temperature extremes of -30 degrees celsius to 45 degrees celsius

2006-11-06 01:55:41 · 1 answers · asked by WHISPER 1 in Physics

2006-11-06 01:53:18 · 5 answers · asked by angel_halleluya 1 in Biology

2006-11-06 01:47:11 · 7 answers · asked by -Adri♥; 3 in Earth Sciences & Geology

LIGHT?

2006-11-06 01:46:47 · 4 answers · asked by Spacekid 2 in Astronomy & Space

A child sleeping near a domestic an a.c power line is exposed to a magnetic field which may be dangerous. The Earths magnetic field strength is about the same as that of the power line but does not pose a hazard . Why

2006-11-06 01:44:29 · 5 answers · asked by tamburo 1 in Physics

2006-11-06 01:42:28 · 3 answers · asked by crazyoverscott 2 in Chemistry

at least everyone else will get the satisfaction of knowing that it's not on a nevada soundstage when they suffocate.

2006-11-06 01:41:42 · 6 answers · asked by andyprefab 2 in Astronomy & Space

2006-11-06 01:40:23 · 3 answers · asked by Anonymous in Engineering

2006-11-06 01:37:15 · 7 answers · asked by Anonymous in Physics

2006-11-06 01:34:48 · 2 answers · asked by bharath_9994 1 in Mathematics

nice here in poole

2006-11-06 01:28:49 · 32 answers · asked by Anonymous in Weather

The entire problem is like this,,,

[k(k+1)]^2 + (k+1)^3
------------
2

And the solution I have to get is
[k+1(k+1+1)]^2
-------------------
2

i'm trying to work backwards with the solution and forwards from the question in order to solve this. But in the solution part I dont know If I multiply everything inside and then multiply to the power of 2 or start from the power of 2 and then solving with what I got..
Thank you in advance for any help. :)

2006-11-06 01:24:10 · 4 answers · asked by newbie wife 6/16/07 2 in Mathematics

2006-11-06 01:23:12 · 3 answers · asked by Anonymous in Mathematics

Please list sites with easy to read information. My son is fascinated!

2006-11-06 01:21:47 · 1 answers · asked by kristi_wilson81 2 in Earth Sciences & Geology

2006-11-06 01:21:22 · 6 answers · asked by Diane B 2 in Botany

too cold to break out the bathing suit on the beach? Nice during the day, chilly at night is what i've heard.

2006-11-06 01:15:50 · 3 answers · asked by Katie Beth 2 in Weather

American scales read in pounds, because pounds can be pounds force or pounds mass, but Kilograms are just mass, the unit of force is Neutons, which take into account the force of gravity.

2006-11-06 01:11:39 · 3 answers · asked by Fire Halo 3 in Physics

2006-11-06 01:11:09 · 9 answers · asked by veggie_fta 2 in Astronomy & Space

2006-11-06 01:05:03 · 6 answers · asked by Baishikk 1 in Physics

I'm having the best Monday ever! Should I be worried? Am I about to be struck by lightning or something?

2006-11-06 01:04:07 · 23 answers · asked by nev 4 in Weather

Xe-135, a secondary fission product, has a voracious appeitite for neutrons, and a civilian power reactor, once shut down, cannot be restarted until the xenon is sufficiently decayed. Such a delay would be unpleasant for any ship, and unacceptable for a warship. What methods are used to increase reactivity in naval nuclear propulsion to avoid this problem?

2006-11-06 00:59:13 · 5 answers · asked by Anonymous in Physics