Science & Mathematics - 10 November 2007

I have a project due on Tuesday, so if anyone knows anything about argon in history it would be great! If anyone is a teacher, espically science, it would also be great! Thank you so much! Please answer ASAYC, (as soon as you can)!

2007-11-10 07:41:16 · 1 answers · asked by keithurbanrox! 2 in Physics

If possible in detail.
Thanks :D

2007-11-10 07:38:03 · 2 answers · asked by R S 1 in Geography

2007-11-10 07:37:34 · 4 answers · asked by honnerstar1 1 in Mathematics

they are talking about a car depreciating. the purcase price of the car is $12000
the actual answers are
a)1983.57
b)14 months

2007-11-10 07:37:12 · 2 answers · asked by Anonymous in Mathematics

When it's winter here is it summer over there?
I'm confused. I always thougt that winter came because the Earth was farthest away from the sun at that point. That means the whole world is in winter at one time correct? I keep hearing people say winter here summer over there. does the southern and northern hemispheres have opposite seasons?

2007-11-10 07:36:57 · 9 answers · asked by Anonymous in Weather

2007-11-10 07:34:51 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-11-10 07:34:03 · 3 answers · asked by monker2be 1 in Biology

and also what is 2.30 divided by 0.05.

2007-11-10 07:33:59 · 4 answers · asked by Anonymous in Mathematics

and also can you solve 6 over 13 times 26 over 30.

2007-11-10 07:31:21 · 8 answers · asked by Anonymous in Mathematics

2007-11-10 07:27:56 · 3 answers · asked by cjbass21 1 in Mathematics

2007-11-10 07:27:46 · 4 answers · asked by Jeanette50 1 in Earth Sciences & Geology

2007-11-10 07:26:28 · 6 answers · asked by Anonymous in Botany

2007-11-10 07:24:33 · 1 answers · asked by glenne 1 in Mathematics

please i want topics similar to "bermuda triangle"or "northern lights" that are very weird and have scientific explanations as well as legends..

2007-11-10 07:23:46 · 1 answers · asked by t m. 1 in Other - Science

Having always heard about this phenomena_to me that's what it is_and very briefly reading about it in Wikipedia right now, two main questions come to mind?:

Did those places (or some of them) ever returned to normal, healthy terrain? And, what was the consequence, healthwise, to so much being buried in so much dust? Plus the dust storms, which must have made this something otherwordly to the ones who'd never experienced it before?

2007-11-10 07:23:16 · 4 answers · asked by mybusiness2 1 in Weather

Is there a real number that is less than the number one (1) and greater than the number represented by a decimal followed by an infinite number of nines (.999999....)?

2007-11-10 07:21:04 · 6 answers · asked by pgriles 2 in Mathematics

If all nuclear fusion in the CORE of the sun ceased immediately, how long would it take for us on the Earth to see the sun begin to get dark?

A. 8 minutes
B. 1 day
C. 100 years
D. 1 million years

2007-11-10 07:20:53 · 8 answers · asked by tdoby3 2 in Astronomy & Space

how do you do these problems:
by the way *= squared
~factoring monomials first~ (factor the expression)
1) 3x* + 54x + 243
2) 8y* - 28y - 60
3) 112a* - 168a + 63
4) u* + 7u
5) -v* + 2v - 1

Equations in standard form (solve the equation)
1)x* + 9x = -20
2)5p* - 25 = 4p* + 24
3)(w + 6)* = 3(w + 12) - w*

I realize that it's a lot of problems for one question but it you could do one of the first equations and one of the second equations I would really appreciate it. Also do you think you could show me the steps on how to to these. I am so very lost! Please help and thanks! Will choose best answer!!!

2007-11-10 07:17:55 · 5 answers · asked by Loaha 2 in Mathematics

THIS IS sort of a combinations of math and history, because it's well, the history of math, so i need help finding 3 people from the past, the teacher gives us clues

1st one, male, born in greece about 287 BC, figured out the value for PI,

2nd one, gender unknown, born in paris, birth time unknown, developed a concept which now is called 'analytical geometry'

3rd one, male, born in 1718 in to a wealthy and literate family, when 13, learned to speak 7 languages, at age 21 (i think), was already discussing complex complex philosophical questions with adults on a regular basis, also Published "two - volume Analytical Institutions", x2y=4a2(2a-y)

those are the only ones that i dont know yet, so HELP!

2007-11-10 07:14:21 · 5 answers · asked by Anonymous in Mathematics

2007-11-10 07:14:03 · 2 answers · asked by Shary 6 in Engineering

2007-11-10 07:10:43 · 5 answers · asked by Shadae 1 in Chemistry

math problem: You want to order a deli platter for a sports banquet. You need 12 lbs of meat and cheese. You want twice as much meat as cheese on the platter and the same amount of ham and turkey. The price per pound is $4.95 for ham, $6.99 for turkey, $7.99 for roast beef, and $4.36 for cheese. How many pounds of each should you order if you plan to spend $64.24?

- We have been working with matrices and linear systems. So I know I should set it ups a linear system or a matrix but I have no clue what to do. I have been working on this for so long. Any help would be greatly appreciated.

2007-11-10 07:08:34 · 6 answers · asked by lexusright 1 in Mathematics

divers "air bottles" or astronauts backpack.i mean what is exact mixture inside?
sorry for my bad english :)))))

2007-11-10 07:07:59 · 2 answers · asked by mladen m 1 in Physics

i have to a project about species that are introduced into a different environment and there effects

OF THESE, which would make for the most interesting project?

the feral pig in North America
the night-crawler in North America
the European starling in North America
the American muskrat in Europe
apple snail in Hawaii and elsewhere
the tiger salamander in California
the little fire ant on the Galapagos islands
Cuban anole in Florida.

2007-11-10 07:06:15 · 4 answers · asked by Anonymous in Zoology

First of all, please don't answer "Do your homework"

A climber left base camp at 5AM to ascend a 7400-M peak. The climber gained altitude at the rate of 240 m/h and at 8 AM was at the 6500-M level.

a.) Find the elevation of the base camp
b.)At what time did the climber reach the summit?

These have to be described w/ a linear function, not algebraically.

2007-11-10 07:06:01 · 3 answers · asked by Eric 3 in Mathematics

2007-11-10 07:03:44 · 10 answers · asked by Sunshine 4 in Weather

what is the limit as x approaches positive infinity for the function (xe^(1/x)-x)(e^x+x)^(1/x)

Anyone have any idea how to do this? I'd appreciate any help.

Thanks.

2007-11-10 07:01:30 · 2 answers · asked by Anonymous in Mathematics

2007-11-10 06:58:23 · 28 answers · asked by Anonymous in Weather

Rep-tiles

Put 4 copies of Triangle A together to make the same shape, only bigger.

Put 4 Copies of triangle B together to make the same shape.only bigger.

you are allowed to turn the shapes upside down but the pieces are not allowed to overlap.....

that's my math fair puzzle

2007-11-10 06:55:18 · 2 answers · asked by marthin v 1 in Mathematics

i also noticed that some moblies have a powerful viberation.. plz can any body tell how it works, wats that thing which makes the mobile to get shaked

2007-11-10 06:54:10 · 4 answers · asked by amr 2 in Engineering