Science & Mathematics - 20 November 2006

a) Cl or Cl-
b) Na or K
c) Br or I

2006-11-20 10:59:52 · 2 answers · asked by colt 1 in Chemistry

2006-11-20 10:58:33 · 4 answers · asked by colt 1 in Chemistry

ading 52 degrees. how far is the plane from it's original position?

2006-11-20 10:58:13 · 1 answers · asked by Anonymous in Geography

DOES IOT SNOW IN PARTS OF FLORIDA ON THE BEACHES DURING WINTER??????????????????

2006-11-20 10:57:25 · 7 answers · asked by uppittyup15heather 1 in Weather

how many electrons can accommodated in
a) the n=4 shell
b) a p(x) orbital

2006-11-20 10:57:23 · 2 answers · asked by colt 1 in Chemistry

2006-11-20 10:57:12 · 4 answers · asked by Niotulove 6 in Botany

Id the deriviative of ( e^ x + e^ -x ) / 2 equal to ( -e^ x - e^ -x ) / 2 and is the second derivative the same as the orig. problem? And what does y' (1) equal?

2006-11-20 10:53:41 · 7 answers · asked by Rosie 2 in Mathematics

A cooper and a vinter sat down for a talk, both being so groggy that neither could walk; Says cooper to the vinter, :IM the first of my trade, there's no kind of vessel but what I have made, And of any shape, sir, just what you will, and of any size, sir from a tun to a gill." " Then," says the cinter. "Your the man for me. " Make a vessel and the top and bottom are defined. The proportion is 15-9. 35 inches is the depth and can only hold 39 gallons.

Whats the dimensions, and show all of the work.

2006-11-20 10:53:32 · 2 answers · asked by Marcus Aldrige 1 in Mathematics

2006-11-20 10:51:52 · 18 answers · asked by Anonymous in Zoology

ok this is math homework.
how many 3- digit dumbers are there using 2,4,6,8, and 9?

2006-11-20 10:51:29 · 6 answers · asked by Haley 3 in Mathematics

2006-11-20 10:49:54 · 6 answers · asked by jay 3 in Biology

2006-11-20 10:49:40 · 2 answers · asked by DAYUM I 1 in Mathematics

2006-11-20 10:49:03 · 1 answers · asked by Candy Cane 2 in Earth Sciences & Geology

then does titans atmosphere not catch fire? (Hint:Why can flammable materials burn on earths surface? What is "burning".)

2006-11-20 10:47:44 · 6 answers · asked by mapleafgal sweet an delicious 1 in Astronomy & Space

Questions:
which requires molecules of carbon dioxide to start?
~ requires glucose/organic molecules to start?

~ molecules of Oxygen to complete?

~ molecules of Water to start?

~ light energy to start?

~ produces glucose molecules?

~ produces oxygen molecules?

~ produces ATP from food energy?

~ do humans and animals use this?

~ decomposers and detritus feeder do this?

~ algea and other green plants do this?


All these question are from my homework. Which of the two (cellular respiration and photosynthesis) answers each question? Please help!!!

2006-11-20 10:46:36 · 3 answers · asked by Anonymous in Biology

Hi people. just trying to find out how many LED's I can use with a 9v battery? The LED's come with resistors and everything already in them but don't know how to work out how many you can have! Any help would be great!

2006-11-20 10:45:56 · 7 answers · asked by adam_nee_99 2 in Engineering

the climate near big bodies of water usually is more moderate(warmer) than the ones that are far from bodies of water, why does this happend? what does the water has to do here?

2006-11-20 10:45:41 · 10 answers · asked by Jandro 1 in Physics

C8H18 + O2 yields CO2 + H20

Cu + HNO3 yields Cu (NO3) 2 + NO + H20

2006-11-20 10:44:57 · 3 answers · asked by Traffic 4 in Chemistry

If it's an alternative to science then it's not science is it? And 'alternative science' doesn't sound right either. Articles have been written about 'Islamic science' as being somehow alternative to 'western science' but again just what does that mean? Isn't science just science?

2006-11-20 10:43:31 · 4 answers · asked by Anonymous in Other - Alternative

2006-11-20 10:43:24 · 8 answers · asked by freddy197120032003 3 in Zoology

My child has a brain tumor and she only has less than two years to live?
Where in, they never tells about a natural cure, surgeryfree solutions???

It made me so down that i am scared and i dont know what to do

2006-11-20 10:43:20 · 5 answers · asked by Anonymous in Medicine

Assuming I was to drive a boat about 9 meters or 29 foot long with space for two people to sleep. Going at a sensible speed for the boat (you will also have to guess that) . How much would it cost in terms of boat fuel. Other estimations you may want to think about are kilometres per litre or miles per gallon of a typical boat of this size.

a good answer would include estimates for different types of fuel, the assumptions and proceeding calculations involved and a bad answer would just be a number which wont help

If I have failed to state something that you consider vital to the estimate please don't just say that I am being to vague. Simply use a sensible work around in your assumption and I shall be able to still use your hard work when I know what ever number I have left out.

Thanks very much for any efforts

2006-11-20 10:42:49 · 1 answers · asked by Lefty 2 in Mathematics

2006-11-20 10:42:29 · 1 answers · asked by Spec 2 in Biology

Evaluate x² – 1/x² given that x = √2 + 1/√2 – 1

2006-11-20 10:39:47 · 4 answers · asked by h0m3r.simps0n 2 in Mathematics

A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 18.0 N force directed 25.0° below the horizontal.
(a) Determine the work done by the normal force exerted by the table.
(b) Determine the work done by the force of gravity.
(c) Determine the work done by the net force on the block.
Please Show your work. Thank You Very Much!!!!!!!

2006-11-20 10:38:37 · 3 answers · asked by Tennis2127 2 in Physics

A canteloupe is rolled off the edge of a building roof with a velocity of 5.4m/s. It reaches the ground in 3 seconds. How high is the building? How far away from the base of the building does the canteloupe land? What happens to the canteloupe?

2006-11-20 10:38:09 · 2 answers · asked by Daniel 1 in Physics

how many have put Ice and Salt on your skin? and does it hurt?

2006-11-20 10:38:02 · 2 answers · asked by cj 1 in Chemistry

2006-11-20 10:33:55 · 8 answers · asked by Anonymous in Medicine

alright... here's the question:

Why is it important that ions being transported across a cell membrane be shielded from the interior of the lipid bilayer?

2006-11-20 10:29:32 · 4 answers · asked by holaaloha12345 4 in Biology

2006-11-20 10:28:47 · 5 answers · asked by viv 2 in Mathematics