Science & Mathematics - 29 December 2006

Find the 1st 5 terms of a Geometric series, the sum of the 1st and 3rd term is 50 and the sum of the 2nd and 4th term is 150. Please show your calculations. Thanks ^ ^

2006-12-29 20:37:42 · 3 answers · asked by izzy 1 in Mathematics

from numbers 1-31

2006-12-29 20:35:49 · 2 answers · asked by HIGH low 2 in Mathematics

How do bees communicate to each other and do all insects have the same kind of communication style?

2006-12-29 20:35:05 · 4 answers · asked by akmal_scorp87 2 in Zoology

2006-12-29 20:32:50 · 2 answers · asked by Sumanshu Saxena 1 in Mathematics

Is one species splitting into two groups, and then those groups being in two different environments and adapting to their individual environments for incredibly long periods of time, is this evolution?

2006-12-29 20:22:49 · 10 answers · asked by mrbobbobber 1 in Earth Sciences & Geology

I WANT A REACTION DAMMIT!! u aint gonna get best answer for telling me it aint a good idea. i am making a bottle bomb & i know it will create gas but is it toxic.
Plz i want a proper answer! then u will get best answer

2006-12-29 20:22:12 · 2 answers · asked by CoolCrab 2 in Chemistry

how i improve my Curriculam vitae?

2006-12-29 20:17:14 · 7 answers · asked by kartic 1 in Biology

2006-12-29 20:15:46 · 6 answers · asked by santu 1 in Chemistry

Example: E.T. and the Green Little Men with Tentacles.

2006-12-29 20:15:33 · 13 answers · asked by test u 1 in Astronomy & Space

2006-12-29 20:14:17 · 9 answers · asked by CoolCrab 2 in Chemistry

2006-12-29 20:10:47 · 21 answers · asked by Damany C 1 in Weather

or just done with medication

2006-12-29 20:09:20 · 9 answers · asked by venkatraman s 1 in Medicine

2006-12-29 20:08:58 · 25 answers · asked by cherry 1 in Mathematics

2006-12-29 20:07:55 · 10 answers · asked by ROY 1 in Astronomy & Space

how is it possible to build a time machine to travel forward and back in time and how could it possibly work

2006-12-29 19:57:34 · 25 answers · asked by Anonymous in Physics

2006-12-29 19:53:08 · 19 answers · asked by C Shannon 3 in Weather

2006-12-29 19:52:51 · 9 answers · asked by flavorlicious 2 in Earth Sciences & Geology

I know gravity keep people on earth but why no one ever feel like they are upside down?

2006-12-29 19:51:42 · 10 answers · asked by Chris P 3 in Earth Sciences & Geology

I have a rigid glass tube that is 1000 mm high.
It is dipped into a beaker of mercury.
On top of the column is attached a large syringe.
The atmospheric pressure is 760 mmHg.
I now apply a strong aspiration pressure by moving up the plunger of the syringe. The mercury column will now rise. My question (s) are: How high will the column rise ? If it rises only 760 mm Hg as i think it would, then what about the balance 240 mm ? What would occupy that volume ?
What if the tube was 3000 mm high ? What would occupy the 2240 mm of empty space ? (if the column doesn't go up all the way ).

2006-12-29 19:51:41 · 9 answers · asked by Nirmala 4 in Physics

Last night I saw a large ring around the moon and there were no clouds in the sky. What does this mean? What is it?

2006-12-29 19:47:53 · 8 answers · asked by Liz 2 in Astronomy & Space

2006-12-29 19:46:45 · 21 answers · asked by afrprince77 2 in Physics

2006-12-29 19:41:57 · 4 answers · asked by ogopogo 4 in Earth Sciences & Geology

This morning, i lit the stove with some water for some oatmeal.

i checked back on it expecting it to boil for the time i allowed it, i was very surprised to find that it was not boiling, it looked as though it was just warm because steam was coming from the water. however, i was even more surprised to find that when i touched the pot, it immediately started to boil.

What is this phenomenon called?

2006-12-29 19:34:37 · 8 answers · asked by philupthetank86 2 in Other - Alternative

i'm doind a project on quality management, will like to know wat types of challenges will a company usually face. thanks.

2006-12-29 19:30:28 · 1 answers · asked by dalin_edz 1 in Engineering

2006-12-29 19:21:11 · 20 answers · asked by siddu 2 in Astronomy & Space

Hi. I have a problem. MAth is rusty. I have 5 products. I need to recalculate the gross profit for each according to 1 standard equasion.
Cost - $100, $70, $50, $30, $10. Sell - $200, $140, $100, $60, $20


50% Gross Profit Margin.

Now, the cheap products are too expensive for a 50% Gross Margin. What I need is the following.

The $260 gross profit needs to be divided into the 5 products on a scale whereas the most expensive product($100) absors more profit and the smallest product of $10 less. It must look something like this.
Cost - $100, $70, $50, $30, $10. Sell - $220, $150, $85, $51, $14

I use excel. I will appreciate if someone can mail me an example.

Thanx

2006-12-29 19:11:40 · 5 answers · asked by Manie M 2 in Mathematics

2006-12-29 19:07:01 · 7 answers · asked by Snicker_Doodle8 2 in Other - Science

Someone told me that fire isin´t an element but it´s a chemical reaction, can someone explain this to me I don´t understand.

2006-12-29 19:04:55 · 14 answers · asked by Anonymous in Chemistry

Or is photosynthesis always perfectly calibrated?

2006-12-29 19:02:32 · 5 answers · asked by Ejsenstejn 2 in Botany

I am not aware about the truth status of the if statement. But seriously - wouldn't that be much more practical than eating other stuff?

2006-12-29 19:02:01 · 10 answers · asked by Ejsenstejn 2 in Biology