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Science & Mathematics - 20 December 2006

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

I tracked when the International Space Station would be flying overhead, and when I finally saw it with the naked eye, I could very faintly make out a shape, and it looked like the shape it really is.

Am I just imagining things, or can you really see the shape of the ISS some 200 miles up there, with just your eyes?

2006-12-20 06:12:51 · 1 answers · asked by Anonymous in Astronomy & Space

i have an 85 but i want at least a 90....

2006-12-20 06:11:16 · 17 answers · asked by Anonymous in Mathematics

2006-12-20 06:09:10 · 8 answers · asked by Anonymous in Biology

My friend thinks hes really good at maths and can solve any equations. What is a really hard and complicated equation i can ask him?

2006-12-20 06:05:14 · 8 answers · asked by usa_fox1234 3 in Mathematics

WE have the technology to do it ! WHy not do it! Just because the air traffic made by palnes???

2006-12-20 06:03:20 · 13 answers · asked by ☼Scientific Athletic♫ 4 in Engineering

homework help

2006-12-20 06:02:35 · 16 answers · asked by 2 in Chemistry

2006-12-20 05:59:55 · 12 answers · asked by ☼Scientific Athletic♫ 4 in Engineering

We are going back to the moon in 2020 and hoping to have an inhabitable space station by 2024. In 2028 an asteroid is supposed to come very close to the earth. If it changes course it could collide with it. Is this an attempt to prevent the extinction of humanity? It's odd that we have such an interest in the moon after 40 years. It would only take a dozen or two dozen humans on the moon to keep humankind alive.

2006-12-20 05:58:01 · 9 answers · asked by stlouisrams1974 2 in Astronomy & Space

If I take the Element 3 (General) and Element 4 (Amateur Extra) class written tests right away, will they be usable to upgrade my license, or do I need to wait until after Docket 05-235 goes into effect.

http://www.arrl.org/news/stories/2006/12/19/101/?nc=1

Keywords: Ham Radio, Amateur Radio, CW, Morse Code, ARRL, FCC, Communications, NCT, wireless, legal, testing, exam

2006-12-20 05:57:21 · 2 answers · asked by cleanguy4cleanfun 3 in Engineering

I am using a capacitive bank to correct the power factor of my house, now using an a/c clamp meter i can see that the current required has gone down... will the electric bill go down by the same amount? (this will be the case if the meter measures total current... but if the meter measures true current it may not be so.

2006-12-20 05:56:36 · 3 answers · asked by electric 1 in Engineering

I was wondering: which is better for basic pain relief, products with ibuprofen or acetaminophen? Or is it eventually up to the brand (i.e., generic ibuprofen tablets against Advil)?

2006-12-20 05:54:08 · 18 answers · asked by Anonymous in Medicine

i was just wondering

2006-12-20 05:51:59 · 4 answers · asked by patryksko 1 in Geography

2006-12-20 05:51:30 · 22 answers · asked by SouthOckendon 5 in Zoology

f(z) = { x.y^2.(x + iy) + (x^2 + y^2), z != 0
{ 0 , z = 0

z = x + iy ; i = 'iota'

to show that f(z) is not analytic at z = 0, although C-R equations are satisfied at the origin.

Plzzz help!!

2006-12-20 05:50:15 · 2 answers · asked by Sunny 3 in Mathematics

Where does the wind come from if it is not blowing?
Where does it stay when it not blowing?

(blowing or gusting)

Thanks for any answers on this pondering question

Justin

2006-12-20 05:48:23 · 4 answers · asked by Anonymous in Weather

if product of some of teh natrural numbers out of n, n+1,n+2,n+3,N+4 and n+5 be equal to the product of remaining, find the value of n
i.e. n *(n+2)*(n+4) = (n+5)*(n+3)*(n+1)
find n=?
n is the natural number

2006-12-20 05:48:15 · 2 answers · asked by arvind g 1 in Mathematics

An alpha particle, m=4 (in atomic units), collides elastically with a calcium atom, M=20, at rest. The initial velocity of the alpha particle is Vî m/s. After collision the alpha particle has a velocity of 10î - 5j m/s. If the velocity of the calcium atom after collision is Vx î + Vyj find all the unknowns in the problem.

2006-12-20 05:45:35 · 1 answers · asked by Pam 1 in Physics

I mean it will be infinate touse as we cannot measure it and we could never reach an edge if it is expading at the speed of light. but to and observer from outside the universe (in whatever the universe is expanding into) wouldn't the unverse be a finate size?

2006-12-20 05:45:30 · 22 answers · asked by Dead2TheWind 3 in Astronomy & Space

A passenger in a train that moves horizontally looks outside and sees a child hitting a ball straight up to a height of 30 m.The child's coach clains that the ball left the child and a angle of 15 degree above the horizon. Find the speed of the train relative to the ground.

2006-12-20 05:43:51 · 3 answers · asked by Pam 1 in Physics

scientist keep making trips to space, and the world keeps developing, is this possible

2006-12-20 05:39:46 · 11 answers · asked by funky girlie 1 in Astronomy & Space

if x(x + y) = x^2 + xy shouldnt
2x(x + y) = 3x +xy? The answer is 2x^2 + 2xy.

Could someone please spell this out to me? =)

2006-12-20 05:38:09 · 5 answers · asked by grem 3 in Mathematics

2006-12-20 05:34:50 · 2 answers · asked by guff316@sbcglobal.net 2 in Earth Sciences & Geology

this is the correct statement.
please i need your help.

2006-12-20 05:32:51 · 4 answers · asked by star 2 in Mathematics

Like, I figure once it's known how to do it the cheapest, fastest and safest humanly possible it should actually happen and then humanity will have somewhere new to settle and expand into seeing as how earth is pretty full and only getting fuller. I also assume that once built working on increasing food production, possible population density and improving the settled areas in terms of form and function would be an ever ongoing process. Anyone else think this is a good idea and it should actually happen?

2006-12-20 05:32:43 · 5 answers · asked by Stan S 1 in Astronomy & Space

The test also gave me a score. I did quite well in college a few years back (10) but i never really excelled in math. But based on the description given to me, I don't think a visual mathematician would necessarily do well in traditional math anyways. Here is what the test results revealed:

- I am gifted at spotting patterns in both pictures and numbers.

- I am able to see the big picture.

- People trust my instincts and turn to me for my direction. Especially in the workplace.

So based on this, what type of career would be best suited for me? I am 31 and need to find out pretty quickly! Thank you.

2006-12-20 05:31:34 · 10 answers · asked by cannonball 1 in Other - Science

I can remember all through growing up that the seasons were distinct.winter was winter...(snow, ice, cold )
the summer was summer
fall was fall
spring was spring

now you get a little of everything in each season.

the trees don't even know when to shed their leaves. i noticed that some trees started to bloom a little too early.

.......GLOBAL WARMING.


we really messed up the environment.

2006-12-20 05:26:35 · 5 answers · asked by mikey 3 in Weather

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