Science & Mathematics - 21 September 2006

2006-09-21 12:02:47 · 5 answers · asked by jetsjaymeyankees 2 in Biology

from earth that is

2006-09-21 12:02:46 · 6 answers · asked by DLDC07 1 in Astronomy & Space

2006-09-21 12:01:31 · 4 answers · asked by britiani j 1 in Mathematics

a.) 7
b.) -2/3
c.) 1.5

2006-09-21 11:58:16 · 3 answers · asked by Anonymous in Mathematics

2006-09-21 11:58:04 · 1 answers · asked by The Hero Of The World 1 in Chemistry

2006-09-21 11:56:34 · 10 answers · asked by Anonymous in Other - Science

2006-09-21 11:56:03 · 3 answers · asked by The Question Man 2 in Physics

2006-09-21 11:55:46 · 3 answers · asked by sexy dee 1 in Other - Science

2006-09-21 11:54:45 · 17 answers · asked by britiani j 1 in Mathematics

2006-09-21 11:53:14 · 5 answers · asked by lethallolita 3 in Other - Science

Of the following elements, the one that is most likely to form ionic bonds is:
A.Hydrogen
B.Carbon
C.Sodium
D.Oxygen

2006-09-21 11:51:13 · 9 answers · asked by aslanbeliever 1 in Biology

Here are your choices: 2,4,3,6,5,9,8,10

2006-09-21 11:50:56 · 10 answers · asked by britiani j 1 in Mathematics

this is for a math project please answer!!!!

2006-09-21 11:48:48 · 13 answers · asked by gabbybabygirlgabby 1 in Mathematics

2006-09-21 11:48:10 · 1 answers · asked by Anonymous in Chemistry

2006-09-21 11:44:03 · 3 answers · asked by genious_mind_1 1 in Mathematics

I've heared that the nuclear power is CLEAN
But I know that its spent fuel is DANGROUS for decades

so where are those dangrous stuff are kept???

2006-09-21 11:43:37 · 5 answers · asked by Mena 4 in Chemistry

1000 years = 1 day
1 year = ?

2006-09-21 11:42:24 · 12 answers · asked by Pursue Happiness 3 in Mathematics

There are five sets of composite numbers that i need

2006-09-21 11:41:17 · 6 answers · asked by britiani j 1 in Mathematics

2006-09-21 11:39:57 · 7 answers · asked by Etania 7 in Biology

Uses of Thermistor in the environment or real life

2006-09-21 11:39:42 · 4 answers · asked by MJ 2 in Physics

If Y is a non-empty set and a, b are permutation of Y, prove that
A o B is also a permutation of Y.

2006-09-21 11:38:45 · 2 answers · asked by David F 2 in Mathematics

If a plane travels 600 miles to a certain point against the wind and takes 3 hrs, and goes back the same distance but with the wind and it takes 2 hrs, what is the speed of the airplane?

2006-09-21 11:38:43 · 4 answers · asked by pssoliman 1 in Mathematics

2006-09-21 11:37:16 · 6 answers · asked by Anonymous in Other - Science

2006-09-21 11:36:08 · 11 answers · asked by Anonymous in Weather

2006-09-21 11:34:12 · 10 answers · asked by puzzled 1 in Weather

2006-09-21 11:32:24 · 19 answers · asked by britiani j 1 in Mathematics

Here is the problem, by the way, it is about chemical reactions.
Explain where the energy to cook food comes from when a gas stove burns natural gas, CH4, and oxygen, O2
Please use references

2006-09-21 11:31:53 · 4 answers · asked by Anonymous in Other - Science

Does anyone know what distances (rough estimates) can be achieved using 40G (OC-768) over standard single mode fiber given Duobinary, NRZ, RZ, CS-RZ, DPSK, or DQPSK modulation schemes?

Thanks,
Eric
ebreverman@lightriver.com

2006-09-21 11:31:50 · 2 answers · asked by ejbrever 1 in Engineering

Consider the following equivalence relation on the set of nxn matrices.
X is equivalent to Y if there is an invertible matrix A so that Y=AXA^t, where A^t is the transpose of A. How can I describe the set of equivalence classes? For instance, what can I take as representatives, or what are invariants?

I understand the problem when X is symmetric or antisymmetric, it is the general case that I'm wondering about.

2006-09-21 11:28:24 · 3 answers · asked by Steven S 3 in Mathematics

Ok Well I have a periodic table of elements but I'm confused about 1 thing. How do you find atomic mass?

2006-09-21 11:28:11 · 5 answers · asked by melmel_girl_11 2 in Chemistry