Science & Mathematics - 23 November 2006

2006-11-23 04:20:39 · 0 answers · asked by Shaikh R 1 in Botany

PLEASE LET ME KNOW IF IT IS A METAL OR A NON METAL

2006-11-23 04:16:55 · 13 answers · asked by ORACLE 1 in Chemistry

2006-11-23 04:14:21 · 3 answers · asked by Anonymous in Mathematics

2006-11-23 04:13:49 · 7 answers · asked by WoahLileh... 2 in Zoology

I have received from my mom a ring with a crystal stone that changes color through the day - from a deep purple, to blue, to an aquagreen. She was told it was an amythist - my birthstone. I lost the ring in a boomerang game. I really would like to have one again. The amythist crystals I see doesn't change color like that one.

2006-11-23 04:08:59 · 1 answers · asked by purr_q_pine 1 in Earth Sciences & Geology

Chemistry reactions.?
First i want to say Happy Thanksgiving to everyone!!!

Ok, so i have these reactions i did on a quiz yesterday, and i dont know if i did it right.
are these correct? ((Written in net ionic form))
1. Calcium Hydroxide and Magnesium Chloride
Ca(OH)2+Mg+2-->Ca+2+Mg(OH...
2. Solid Barium Peroxide added to Sulfuric Acid
BaO2(s)+H2SO4--->BaSO4(s)...
3. Silver sulfide and nitric acid
Ag2S-->Ag+ + S-2
4. Acetic Acid and Magnesium Carbonate
HC2H3O2+MgCO3(s)-->H2O + CO2+Mg+2 +C2H3O2-1

are any of these correct??
THANK you in advance and have a very nice and wonderful THANKSGIVING!! :)

2006-11-23 04:06:18 · 3 answers · asked by Sparkle 3 in Chemistry

2006-11-23 04:04:39 · 6 answers · asked by spadak1louie 1 in Astronomy & Space

2006-11-23 04:02:29 · 10 answers · asked by vehementvivacious2117229 1 in Mathematics

2006-11-23 04:01:43 · 12 answers · asked by zamuurr 1 in Zoology

please explain in brief,how to predict hybridization in a molecule.

2006-11-23 03:59:14 · 6 answers · asked by shashi l 1 in Chemistry

please explain with an ex. that how to apply Huckel's (4n+2II) rule to any molecule

2006-11-23 03:57:36 · 3 answers · asked by shashi l 1 in Chemistry

i want to know abt. john teller effect.

2006-11-23 03:54:37 · 1 answers · asked by shashi l 1 in Chemistry

Does the fact that men have actually physically larger brains than women compensate for the fact they can't have multiple orgasms ?

2006-11-23 03:53:13 · 6 answers · asked by ChristopheMeert 2 in Biology

2006-11-23 03:50:31 · 10 answers · asked by Brenno 6 in Weather

If there is a 3-methylpentane that goes reaction with Br2, hv what is this major organic product? and say if this major organic product undergo another reaciton with Mg, THF what would be the produc tthen?

2006-11-23 03:48:27 · 3 answers · asked by AUNIDLY 1 in Chemistry

I have a problem with a operation I am using my Sunstrand CNC lathe, with Fanuc controls, for. I am turning the ID of a can that houses a Hermetic Commercial motor. I put the motor/can assembly on the lathe using the ID bore of the motor. I am cutting the ID of the can that contains the motor. The size of the bore is 4" and my expanding segments expand to .04 bigger than the bore and is 4.75 inces long. The problem I am having is that it is impossible to create a perfectly straight bore. At the cut end of the can I am allowed to have a runout of .006. I get runout readings from .002 to .012. My lathe arbor measures .0008 runout. The ID of the can being cut is 7.8" and we cut .0135 off for an area of 1" depth. The can is 14" long and the area being cut is around 6" past the end of the end of the arbor. Is the runout problem caused by the .0008 runout in my arbor or is the machine not capable of holding a .006 tolerance? Any real suggestions? I am not looking for a website. Thanks.

2006-11-23 03:47:20 · 2 answers · asked by dprut 2 in Engineering

2006-11-23 03:45:10 · 9 answers · asked by Anoop C 2 in Weather

2006-11-23 03:43:46 · 23 answers · asked by Poppy W 1 in Zoology

2006-11-23 03:42:14 · 11 answers · asked by perkulees 1 in Geography

2006-11-23 03:38:34 · 13 answers · asked by khochchore 1 in Astronomy & Space

Particles wave such as sea wave travels in sinuisoidal pattern. But electrons are charged particles, if charged particles travel in sinuisoidal function, won't they emit EM wave? Then, do electrons travel as wave?
My answer is NO. Electrons can never travel as wave. Electrons can never travel at light speed. Electrons do not possess wave characteristic.
Kindly advice and feel free to discuss.

2006-11-23 03:38:08 · 6 answers · asked by kongkokhaw 1 in Physics

2006-11-23 03:36:04 · 10 answers · asked by Busyman 1 in Zoology

2006-11-23 03:35:44 · 5 answers · asked by leonardshepherd2003 1 in Mathematics

2006-11-23 03:31:56 · 4 answers · asked by jsock 1 in Chemistry

Tame nuts are being used in Brazil to make biodiesel, any one got a clue about what they are called elsewhere?

2006-11-23 03:29:50 · 1 answers · asked by Simon R 1 in Botany

2006-11-23 03:29:25 · 17 answers · asked by astalavista 1 in Mathematics

What is the exact value of cos x - sin(x + 150) + cos(x + 120)?

step-by-step solution would be greatly appreciated

N.B. All numbers are in degrees

2006-11-23 03:21:52 · 5 answers · asked by Anonymous in Mathematics

2006-11-23 03:21:06 · 10 answers · asked by US 2 in Other - Science

2006-11-23 03:19:42 · 7 answers · asked by darestobelieve 4 in Astronomy & Space

I have a theory concerning this but I first want to make a comment concerning this. Besides math principles being discovered every 100 years or so, math basically remains the same. It stands to reason then why something that seldom changes should be so difficult to learn. Now for my theory: I believe that Americans do poorly in math primarily because of the way it is being thought. No one has analyze the way two people interprets and understand the same thing being taught to them. People who do well in math more than likely interprets and process information very similar. Saying this, why hasn't some cognitive psychologist or researcher found some revolutionary solution to this problem or in fact anyone?

2006-11-23 03:19:12 · 7 answers · asked by Anonymous in Biology