Science & Mathematics - 20 October 2007

1. Hydrogen has an extremely low electronegativity.
2. Hydrogen is able to accept or donate electrons, so it is the most versatile atom in the periodic table.
3. Hydrogen can be considered either a metal of nonmetal.
4. The boiling points of NH3, H20, and HF are abnormally high compared with the rest of the hyrides in their respective periods.

2007-10-20 23:55:55 · 2 answers · asked by xxxladyxxx 1 in Chemistry

test details for testing purpose

2007-10-20 23:55:27 · 3 answers · asked by Milind 1 in Engineering

The picture is this (http://icanhascheezburger.files.wordpress.com/2007/06/schrodingers-lolcat1.jpg)

I just don't get it. And apparently it's really funny. I must be dumb.

So, any idea? XD

2007-10-20 23:48:42 · 12 answers · asked by Chris 3 in Other - Science

2007-10-20 23:44:44 · 2 answers · asked by Anonymous in Engineering

2007-10-20 23:41:39 · 6 answers · asked by janjanchara 1 in Engineering

What is it advantage over the other for example of some of the algorithm i have known is annealing simulation, genetic algorithm, neural network, fuzzy logic, art colony simulation, Tabu search, are there more ?

2007-10-20 23:40:19 · 3 answers · asked by Rinnegan 2 in Engineering

It's funny that people choose to believe evolution over creation, when evolution takes much more faith than creation. You can choose to believe that all organisms, including humans which just happened to be the smart ones, came from a freaken rock/ooze/whatever since you don't know, or you can choose that a creator created us. I would rather choose god over an ooze that took millions of years to 'evolve'

2007-10-20 23:34:21 · 13 answers · asked by Anonymous in Biology

What is the meaning of transient stability and small signal stability, causes of these unstability and how to protect these unstability.

2007-10-20 23:23:24 · 1 answers · asked by Rinnegan 2 in Engineering

In state space what is the participation matrix, modal matrix and mode for ?

2007-10-20 23:13:13 · 1 answers · asked by Rinnegan 2 in Engineering

how do you rearrange the formula: 2y+x-4=0, to make y the subject?

2007-10-20 23:13:07 · 3 answers · asked by Anonymous in Mathematics

What is Eigen value and Eigen vector, what is the benefit for using this method ?

2007-10-20 23:09:02 · 4 answers · asked by Rinnegan 2 in Engineering

It is my dream to be a doctor.
I know being an intern and resident is going to be hard.
I'm not too worried about the lack of sleep and working a lot of hours.
But I am worried about how I will be treated.
Like on Grey's Anatomy, they treat the interns really bad.
I don't know how accurate that is because its fiction.
But it kinda seems conusing to be an intern. Like it seems as if the interns don't know where to go or what they should be doing.
Can someone tell me if my assumptions are right?

2007-10-20 22:58:28 · 4 answers · asked by ♥FABULOUS♥ 2 in Medicine

(So I've read from a bunch of online sources, some one correct me if that isn't true.)

I'm curious about what other odd/unusual behaviors occur in space environments, anybody have links?

2007-10-20 22:57:39 · 1 answers · asked by Buckminster 1 in Astronomy & Space

2007-10-20 22:48:56 · 2 answers · asked by Anonymous in Chemistry

I have worked out how to do
cos = root 3 on 2
As
30 degrees, and 330 degrees
Im just having some trouble with the others

2007-10-20 22:47:15 · 3 answers · asked by Anonymous in Mathematics

Prime factors up to 49.

2007-10-20 22:44:08 · 12 answers · asked by wendyiley 2 in Mathematics

If you took a large, hollow ball and lined the inside of it with mirrors, placed some neat flash light with a video camera in the middle of it-what exactly would you see?

2007-10-20 22:39:48 · 4 answers · asked by Buckminster 1 in Physics

and please state country u r in atm!

2007-10-20 22:39:12 · 7 answers · asked by Tea Lover 3 in Astronomy & Space

the prime factors can only go up to 49.
Get your brains going!

2007-10-20 22:31:12 · 6 answers · asked by wendyiley 2 in Mathematics

I've had this idea for a while. Put a large (perhaps 1 square mile or bigger) mirror on the moon and focus telescopes on it so you could see the earth from the moon, from earth. I think its a cool, thought highly unpractical, idea.

2007-10-20 22:28:28 · 15 answers · asked by ethereal_slumber 2 in Astronomy & Space

2007-10-20 22:22:16 · 14 answers · asked by Anonymous in Physics

2007-10-20 22:21:18 · 9 answers · asked by Oliver S 2 in Engineering

2007-10-20 22:20:58 · 5 answers · asked by Anonymous in Astronomy & Space

what is the suggestion for the potential materials for frame of wheel chair in the future in aspects of materials behaviour,cost,manufacturing,availibility?

2007-10-20 22:15:52 · 2 answers · asked by suser 1 in Engineering

Gold,sugar,salt,aluminum,oxygen,chlorine,water,platinum,brass.

2007-10-20 22:01:12 · 18 answers · asked by fayloit 2 in Chemistry

help me pls.

2007-10-20 21:23:14 · 3 answers · asked by xXthonyXx 1 in Weather

the crate moves with it, not sliding on the bed of the truck. in what direction is the friction force exerted by the bed of the truck on the crate?
is the answer there is no friction because the crate is not sliding?

2007-10-20 21:22:17 · 4 answers · asked by student 1 in Physics

Well I think it is because of hormones. But is there any other reasons why women do have soft skin and body??

2007-10-20 21:18:01 · 9 answers · asked by Bluebird 6 in Biology

2007-10-20 21:06:26 · 9 answers · asked by sonofabitts 1 in Mathematics

2007-10-20 21:04:31 · 20 answers · asked by nagarvadhu 1 in Biology