Science & Mathematics - 5 October 2007

2007-10-05 17:06:43 · 2 answers · asked by Anonymous in Earth Sciences & Geology

x + y + z = 10
x*y*z = 10

2007-10-05 17:04:25 · 6 answers · asked by MATH!!!! 2 in Mathematics

What's the molar heat capacity of ethanol, C2H5OH(l)?
* The specific heat of ehtanol is 2.46 J/g℃

I think the question is wrong because the unit of specific heat is J/g, isn't it?? and J/g℃ is for specific heat capacity? so, when you're solving, change the unit if it needs to be changed.

2007-10-05 17:02:34 · 2 answers · asked by ? 2 in Chemistry

What mathematics background is needed to thoroughly understand string theory?

2007-10-05 16:58:18 · 4 answers · asked by robert f 1 in Physics

2007-10-05 16:56:50 · 5 answers · asked by Gail 1 in Astronomy & Space

the second law states that the incident ray, the reflected ray, and the normal all lie in the same plane.

-What can I use to support that this is true?

2007-10-05 16:53:28 · 2 answers · asked by Anonymous in Other - Science

2007-10-05 16:44:33 · 9 answers · asked by ixat02 2 in Chemistry

2007-10-05 16:40:38 · 9 answers · asked by Anonymous in Physics

Here is my best guess. Just so you don't think you're doing my homework. I am looking for confirmation of my answer.

vertex is at (3, 1)
http://www.mackendrick.com/images/vertex.jpg

2007-10-05 16:37:51 · 3 answers · asked by Talriada 2 in Mathematics

2007-10-05 16:32:02 · 3 answers · asked by Anonymous in Chemistry

Can someone tell me if this is correct: Find the value of the polynomial -x^2-3x-1 when x=-4

-1(-4)^2+3(-4)-1
-1(8)+(12)-1
-8-12+1
-20+1
=19
Is this correct??

2007-10-05 16:24:22 · 22 answers · asked by tricey7578 2 in Mathematics

I always chance upon the 3-digit numbers 1:11, 2:22, 3:33,4:44 and 5:55. Most of the time, it's the 4:44 that I see. Is there a paranormal explanation to this?

2007-10-05 16:22:41 · 15 answers · asked by meatball 1 in Paranormal Phenomena

The stars are best visible from different locations in america. Some are clearer than others. How do I find out which states and locations have the most pristine skies available for seeing the stars? I already tried several google searches and I'm not getting good, straight answers. Please Help!

2007-10-05 16:20:13 · 13 answers · asked by Anonymous in Astronomy & Space

It's for a stupid science project I have & I can't find the answer.

2007-10-05 16:16:42 · 4 answers · asked by Tash Lestrange 2 in Astronomy & Space

2007-10-05 16:14:47 · 3 answers · asked by clark c 1 in Geography

2007-10-05 16:11:32 · 4 answers · asked by pips_325 2 in Medicine

i been tring to look this up but could not find

2007-10-05 16:03:16 · 4 answers · asked by jd 1 in Zoology

What is the theoretical yield for this reaction?

2007-10-05 16:03:04 · 2 answers · asked by Anonymous in Chemistry

how many MB go into a GB?????????

Spencer,

2007-10-05 16:03:01 · 6 answers · asked by Anonymous in Mathematics

I took 1 ambien cr and waited 2 hours in bed. lights out, computer off tv off ipod off.. now im wonderwear why im not falling asleep
I feel high now "/
this sucks.. Ihave to get up at 7

2007-10-05 16:00:06 · 6 answers · asked by tt --AM-- 3 in Medicine

has changed my life
brought me back to the person I used to be!
Long live pail and god bless whoever that helped!
I still am under recovery but i feel great thus far
thank god :)

2007-10-05 15:58:28 · 2 answers · asked by Jiggyman 1 in Medicine

It neither the front that land first then the back or the back and front at the same time

2007-10-05 15:56:07 · 5 answers · asked by FarqhanF 2 in Zoology

2007-10-05 15:50:06 · 3 answers · asked by Tsunami 7 in Zoology

Okapis and giraffes are my favorite animals but no one knows about them.

2007-10-05 15:46:03 · 5 answers · asked by Anonymous in Zoology

just go anywere you want to as a silent not affecing anything spirit, like just look but not touch. just meditate and just toss your soul to everything and see it all, sure it whould drive you insane in a way but it whould be fun. What if the universe is so complex that we have to be "here" and not "their"...and i just lost my train of thought.

2007-10-05 15:43:06 · 7 answers · asked by Anonymous in Astronomy & Space

2007-10-05 15:41:54 · 6 answers · asked by JD93 1 in Engineering

2007-10-05 15:40:42 · 2 answers · asked by AshUK 1 in Mathematics

find the center, vertices, foci, and asymptotes of the hyperbola.
I). [(y^2)/9] - [(x^2)/1] = 1

II). x^2 - 9y^2 + 36y - 72=0

2007-10-05 15:40:08 · 3 answers · asked by confusedkid 3 in Mathematics

Ibuprofen has formula C13H18O2

a) how many atoms of carbon are in .425g

.425g(1moleC/12.01gC)(6.022 x 10^23 atoms of C/1 moleC)= 2.13 x 10^23atoms of carbon

b) how many grams of H are in 3.75 x 10^22 molecules of Ibuprofen
3.75 x 10^23 molecules (1 mole of Ibuprofen/6.022x10^23 atoms of Ibuprofen) (18 moles of H/1 mole of Ibuprofen) (1.008g H/1 mole H)

are those right?

2007-10-05 15:40:06 · 1 answers · asked by shirah d 2 in Chemistry

2007-10-05 15:39:59 · 8 answers · asked by bored 2 in Other - Alternative