Science & Mathematics - 9 December 2007

2007-12-09 02:42:53 · 4 answers · asked by S i r i 1 in Medicine

i'm just wondering.......

2007-12-09 02:42:25 · 3 answers · asked by Stupid 2 in Physics

2007-12-09 02:39:11 · 5 answers · asked by wendym63 2 in Mathematics

2007-12-09 02:35:01 · 4 answers · asked by ramzi 1 in Biology

i mean, really, how does it effect most peoples lives and what percentage of people care?

2007-12-09 02:34:15 · 6 answers · asked by ieatbacon4breakfast 2 in Astronomy & Space

2 – 3[-4 + 6] ÷ (-2)

2007-12-09 02:33:15 · 9 answers · asked by laindia187 1 in Mathematics

if the production capacity various to glass and ceramics product, suggest the best method for the packaging process. explain the best method.

2007-12-09 02:32:25 · 2 answers · asked by Wxzy 2 in Engineering

I just need to know where...

2007-12-09 02:29:56 · 4 answers · asked by Koreangel 3 in Geography

Distance to Sun KM, Distance to Sun Miles, Distance to sun AU, Period of Revolution, and Orbital Speed KM/secs????
I cant find this information for my science project.
THANKS

2007-12-09 02:28:02 · 9 answers · asked by SummerLuvr94 2 in Astronomy & Space

I will answer first and am interested in your answers. I was a hard core disbeliever until a ghost appeared to me and even talked. that was 1972 or 1973 about seven or eight years ago I got internet service and started searching ghost and found many sites and eventually learned the modern method and theories and like many I wanted to document ghost and prove they exist.

Over the years my reasons have changed, I disbanded my team and quit the other team I was on and just started investigaiing by myself.
My reason now is not to prove to the disbeliever or share with the believer but for my own spiritual enlightenment. I know there is an after life and I just want to do this for me now and learn all I can. I have almost stopped using all the fancy high tech gadgets ghost hunters like so much because for my purpose my mind is the most valuable tool. I do help those who have a ghost from time to time and help them deal with it in a productive way.

2007-12-09 02:26:42 · 6 answers · asked by Anonymous in Paranormal Phenomena

i would also like to know if it can be produced by reacting aluminium with lime ...if so how ?? i would like to know the method in detail...

2007-12-09 02:22:16 · 4 answers · asked by enigma 1 in Chemistry

2007-12-09 02:18:16 · 4 answers · asked by drchestnuts 1 in Engineering

2007-12-09 02:12:39 · 2 answers · asked by sweetu.honey 1 in Earth Sciences & Geology

Light in air strikes a transparent plate of an unknown material at an angle of incidence of 60 degrees. Part of the beam is reflected and part refracted. A measurement shows that the angle between the reflected and refracted beams is 90 degrees with each other. What is the index of refraction of the material?

2007-12-09 02:09:25 · 3 answers · asked by jb143 1 in Physics

2007-12-09 02:04:58 · 11 answers · asked by vinnie22848 2 in Astronomy & Space

does it have a formula?

2007-12-09 02:02:49 · 2 answers · asked by Wxzy 2 in Physics

as an equation or in words, or both.

2007-12-09 02:00:51 · 3 answers · asked by Book of Changes 3 in Astronomy & Space

For use while compering a conference of medicos

2007-12-09 02:00:16 · 6 answers · asked by abid h 1 in Medicine

solve the equation

2^x = 4x

2007-12-09 01:59:45 · 4 answers · asked by elnegely 1 in Mathematics

This is an exercise of Morandi, that i couldn't solve. I have done the rest of my homework, so please, give me some help!

Let K a field and suposse that s is an automorphism of K, and s has infinite order. Let F be the fixed field of s. If the extension K / F is algebraic, show that K is normal over F.

2007-12-09 01:58:46 · 2 answers · asked by awing82 2 in Mathematics

basically i need to know what this is equal to:

[ (3x - 1)^1/3]^2

thanks

2007-12-09 01:51:02 · 6 answers · asked by Anonymous in Mathematics

Ex:square number are:

1; 2; 4 ;9 ;14 ;25; 36; 49; 64; 81...

2007-12-09 01:48:29 · 2 answers · asked by lovelystarr_86dl 1 in Mathematics

Can you do this problem? Is it to easy or to hard? Feedback about it please, 13,14 year olds should be able to solve this.

5w - 7^2 -6(3+2) = -29 + 7½ w

Solve for W.

2007-12-09 01:38:37 · 6 answers · asked by Anonymous in Mathematics

were moving 25 miles away from town how many hours is that?

2007-12-09 01:32:11 · 10 answers · asked by onz 1 in Mathematics

2007-12-09 01:26:36 · 1 answers · asked by 562cheese 2 in Physics

plz i need it .........urgent

2007-12-09 01:21:59 · 5 answers · asked by sweetu.honey 1 in Earth Sciences & Geology

2007-12-09 01:20:08 · 1 answers · asked by Anonymous in Mathematics

Solving 1 or both of them is fine, as long as explanation is included.

1. An impure sample of Na2SO4 has a mass of 1.56 grams. This sample is dissolved and allowed to react with BaCl2 solution. The precipitate has a mass of 2.15g. Calculate the percentage of Na2SO4.

2. An impure sample of Na2SO4 has a mass of 1.65g and is dissolved in water. Addition of BaCl2 solution produced a precipitate of barium sulphate with mass 2.32g. What is the percentage of NaCl in the mixture?

2007-12-09 01:11:51 · 5 answers · asked by onlineworld 1 in Chemistry

Does anyone know of a web site that can tell me the elevation or has elevation maps of my local area, in north Texas.

2007-12-09 01:09:13 · 3 answers · asked by Anonymous in Geography

For example: A substance contains 10% X 18.7% Y and 71.3% Z (XYandZ being the elements) what is the empirical formula? I chose not to write the actual question cause this is homework and I don't wanna cheat.

2007-12-09 01:03:46 · 2 answers · asked by Ethereal 4 in Chemistry