Science & Mathematics - 3 January 2007

It has puzzled me for a while. How can someone simply be consumed by flames with no apparent source that would cause a fire? I'd like to hear what you think causes this phenomenon.

2007-01-03 12:51:36 · 4 answers · asked by Hannah 1 in Chemistry

NOT APPROXIMATION......ACTUAL #

2007-01-03 12:50:55 · 34 answers · asked by dancerbabii1007 1 in Mathematics

ok~ helium~ it is located in the top, right hand corner of the periodic table, but why? any particular reason?
also, who discovered helium? i have researched it but i have come up with MANY different answers, so which is right???
also, where can i find a write up on ht ehistory of helium??

THANKS!

2007-01-03 12:47:36 · 7 answers · asked by Anonymous in Chemistry

2007-01-03 12:47:15 · 12 answers · asked by bubblemonkey23456 1 in Zoology

I did a science project where i mixed two chemicals and had to wait for them to change color. Each time i shook it up faster. However, the shaking didnt affect the time it took for the chemical reaction to take place. Any ideas why?

2007-01-03 12:46:38 · 4 answers · asked by Kaitlyn 2 in Chemistry

specific examples, describe please. Thank you in advance

2007-01-03 12:44:22 · 11 answers · asked by theresa_xo92 2 in Physics

how would you test for O2 and CO2 gas? (what type of reaction would prove its existence?)

2007-01-03 12:43:23 · 3 answers · asked by cherriecheezecake 1 in Chemistry

can someone giv me sum facts on how cell arise from different cells and how thanx

2007-01-03 12:43:14 · 3 answers · asked by NB GANGSTA 1 in Biology

algebraic fractions
(2y-80)^2/(2y-8)^3
please show me what to do?

2007-01-03 12:42:58 · 5 answers · asked by mary p 1 in Mathematics

Why do planes and ships disappear in it and no evidence is ever found?

2007-01-03 12:42:10 · 10 answers · asked by Anonymous in Astronomy & Space

Find the volume of the solid obtained by rotating the region bounded by the functions f(x)=3-x^2 and g(x)=1+x^2 about the x-axis.
1) How can I find the x-values where the functions intersect?
2) What is the volume of the solid?

2007-01-03 12:41:57 · 4 answers · asked by delye56 2 in Mathematics

it needs to be done today!
when u get it email sheenam234@yahoo.com

2007-01-03 12:39:30 · 5 answers · asked by sheena m 1 in Mathematics

An animals habitat is destrroyed so how will the animal's and the environment be affected?

2007-01-03 12:39:26 · 4 answers · asked by lol! It's moi 2 in Zoology

I'm in Science Olympiad and I need some software to test some designs for the "tower building" event. Is there something similar to the "West Point Bridge Designer" for towers?

2007-01-03 12:38:25 · 1 answers · asked by Anonymous in Engineering

Current GPA: 2.25
GPA I'll get in Winter: 2.50
GPA I'll get in Spring: 3.62

What will my average GPA be at the end? How do you do that?
Thanks in advance! :)

2007-01-03 12:38:19 · 12 answers · asked by sweetsally906 1 in Mathematics

how the hell do you do this??

2007-01-03 12:37:45 · 4 answers · asked by Anonymous in Mathematics

The profile of an experimental propeller is given by R(x)= (10-x)(x^2)/10 for 0
1) What volume, V(t), of water is swept out by the leading portion of the blade in one revolution? (Enter an expression in terms of t)

2) What is the total volume of water swept out by the blades in one revolution?

2007-01-03 12:37:40 · 1 answers · asked by delye56 2 in Mathematics

I have a math problem that i need help with. Its more like a puzzle to solve.
There is a car that travels to a destination averaging 60 mph
It goes back the exact same distance averaging 40 mph
What is the total average speed it travelled...and its not 50 mph
somebody help me

2007-01-03 12:37:22 · 11 answers · asked by monkeyinaplane 2 in Mathematics

2007-01-03 12:36:38 · 3 answers · asked by Rosy 2 in Chemistry

2007-01-03 12:36:31 · 6 answers · asked by lizzy123 1 in Earth Sciences & Geology

2007-01-03 12:36:20 · 14 answers · asked by Anonymous in Geography

The brightest stars of a young open cluster will be

A.Cepheid variables.
B.Massive blue main sequence stars.
C.Red giants.
D.Yellow main sequence stars like the Sun.
E.T Tauri variables.

2007-01-03 12:35:39 · 4 answers · asked by Anonymous in Astronomy & Space

2007-01-03 12:35:08 · 6 answers · asked by linda n 1 in Geography

In globular clusters, the brightest stars will be

A.Massive blue main sequence stars.
B.Red super giants.
C.T Tauri stars.
D.Blue stragglers.
E.Planetary nebulae.

2007-01-03 12:34:45 · 4 answers · asked by Anonymous in Astronomy & Space

write 6/5 as a decimal,write 3/4 as a percent,write 50% as a fraction,60% as a decimal,0.07 as a percent,approximate 7/6 to two decimal places,approximate 4/9 to two decimal places

2007-01-03 12:34:24 · 2 answers · asked by Anonymous in Mathematics

If it's not tell me why.

2007-01-03 12:34:08 · 24 answers · asked by Anonymous in Zoology

Thx

2007-01-03 12:33:06 · 9 answers · asked by YaYa 3 in Mathematics

I mean if you could be a real help and give me any information I would be grateful

2007-01-03 12:32:05 · 3 answers · asked by EmoLove 1 in Zoology

2007-01-03 12:31:11 · 5 answers · asked by Kripster 1 in Weather

some of them? I forgot where a study was suppose to have been done. There were articles in magazines, but the ones I found were only in pulp magazines. Anyone recall anything reliable?

2007-01-03 12:30:10 · 7 answers · asked by Anonymous in Astronomy & Space