Science & Mathematics - 20 September 2006

2006-09-20 08:09:59 · 10 answers · asked by madhaka 1 in Earth Sciences & Geology

2006-09-20 08:09:20 · 21 answers · asked by Anonymous in Astronomy & Space

An element X combines with oxygen to for XO2. If 24g of element X combines with 16g of O, what is the atomic weight of element X? Is a proportion involved?

2006-09-20 08:08:37 · 2 answers · asked by foxtrot 3 in Chemistry

2006-09-20 08:05:32 · 9 answers · asked by Anonymous in Weather

Hi, its me again...

OK can someone check my answer to see if it is complete?

This time the problem goes like this:

The perimeter of a triangle is 28. What are the possible lengths of the sides of the triangle?

My answer:

9,11,8
10,10,8
11,9,8
12,6,19
7,10,11
6,12,10

Is my list complete? If not, can you tell me what to add?

Bonus: Is there a rule to figuring out a problem like this?*


Thanks so much :)

2006-09-20 08:04:46 · 6 answers · asked by Anonymous in Mathematics

2006-09-20 08:03:37 · 5 answers · asked by Katie G 1 in Mathematics

2006-09-20 08:03:09 · 2 answers · asked by Katie G 1 in Mathematics

I found them on a site, but haven't had the time to build there machine. After reading the heck out of the plans and the explanation it theoretically sounds like it would work. Just looking for insight.

2006-09-20 08:01:11 · 7 answers · asked by Anonymous in Engineering

PCC stands for Pyridinium chlorochromate

2006-09-20 07:58:29 · 2 answers · asked by hyperion005 1 in Chemistry

It's got to do with Communication Satellites

2006-09-20 07:57:51 · 4 answers · asked by william p 1 in Astronomy & Space

please explain what a Extraneous variable as simply as possible

2006-09-20 07:48:09 · 11 answers · asked by Anonymous in Other - Science

2006-09-20 07:47:44 · 8 answers · asked by heybaby 2 in Mathematics

2006-09-20 07:46:04 · 3 answers · asked by Anonymous in Other - Science

in my computer science class,are teache is going real hard on us.most of us are still beginners(including me) , she is assigning us 5 pages a day!none of us are passing.WHAT DO I DO!?!?!?

2006-09-20 07:45:43 · 5 answers · asked by Lexy 1 in Other - Science

Urgent answer please!! when one is contemplating oneself in a desert spooen why is ones head upside down on the concave side? hmmm? I need to know asap so pls answer!

2006-09-20 07:40:01 · 4 answers · asked by Lola1601 2 in Other - Science

Why does it make crystal growth larger?

2006-09-20 07:38:51 · 12 answers · asked by Anonymous in Chemistry

An organic compound containing C,H,O,and S is subjected to two analyitcal procedures. In the first procedure a 9.33 mg sample is burned which gives 19.5 mg of CO2 and 3.99 mg of H2O. IN the second procedure, a seperate 11.05 mg sample is fused (melted) with Na2O2 and the resulting sulfate is precipitated as BaSO4, which (when dried) weighs 20.4 mg( Appropriate amounts of Na2O2 and a compound containing barium ion are added.) The amount of oxegen in the original sample is obtained by difference. Determain the empirical formula of this compound.)

2006-09-20 07:38:19 · 2 answers · asked by lpphysco 2 in Chemistry

2006-09-20 07:33:46 · 10 answers · asked by Sir_john_Jr 1 in Chemistry

Is it a shuttle like ours? Where can I find more info?

2006-09-20 07:33:04 · 5 answers · asked by marcat 2 in Astronomy & Space

Hi, I am a first year student studying Mental Health

2006-09-20 07:32:22 · 10 answers · asked by rainbow 1 in Biology

2006-09-20 07:28:18 · 14 answers · asked by Anonymous in Astronomy & Space

2006-09-20 07:26:16 · 8 answers · asked by Anonymous in Other - Science

I have no idea what it is so please help. In really simple terms for some one not intelligent (ie me) to understand. 10 points for the most useful and simple answer. But can it be quite long as well THANK YOU SO MUCH!!!

2006-09-20 07:22:01 · 11 answers · asked by Anonymous in Biology

i need examples of permutation and combination in pre-algebra

2006-09-20 07:21:02 · 6 answers · asked by Anonymous in Mathematics

If any object is there which can travel greater than or equel to light velocity then we can prepare a space ship which can travel from one galaxy to another galaxy

2006-09-20 07:19:56 · 25 answers · asked by RAMESH K 1 in Engineering

2006-09-20 07:17:07 · 3 answers · asked by Avni A 1 in Physics

2006-09-20 07:15:50 · 2 answers · asked by Ritz 1 in Astronomy & Space

2006-09-20 07:14:29 · 6 answers · asked by pc 1 in Biology

I come from a big hunting state and none of the hunters I know can answer this question.

2006-09-20 07:14:10 · 10 answers · asked by Anonymous in Zoology

Need tutoring for sample problems
Simplify - (4x-3)(x^2-3xy+2xy^2)

2006-09-20 07:13:33 · 3 answers · asked by bsmooth 1 in Mathematics