Science & Mathematics - 28 December 2006

2006-12-28 18:58:55 · 2 answers · asked by Anonymous in Chemistry

2006-12-28 18:56:44 · 5 answers · asked by BISWAJIT B 1 in Engineering

2006-12-28 18:54:53 · 5 answers · asked by idfrogrock 1 in Mathematics

i tryed it out i yawned in fron of my cats and evry time they yawn right back at me!!!! why though??????????

2006-12-28 18:53:28 · 11 answers · asked by jumanjisapikey 3 in Biology

please answer this quetion

2006-12-28 18:53:10 · 10 answers · asked by raghu_cool_at 1 in Astronomy & Space

besides cells

2006-12-28 18:49:47 · 10 answers · asked by Anonymous in Biology

Let t to be subdivided into many small intervals of length delta t.Since particles are emitted at random times, the probability of a radioactive disintegration occurring during any delta t is completely independent of whatever disintegrations occur at other times.Let delta t be small enough so that the probability of more than 1 disintegration occurring in delta t is negligibly small.This means that there is some probability p of 1 disintegration occurring during a time delta t (with p<<1)& probability 1-p of no disintegration occurring during this time.Each such time interval delta t can then be regarded as an independent trial,there being a total of N=t/delta t such trials during a time t. A)Show that the probability W(n) of n dsintegratns occurring in t is given by Poisson distrbtn.B)If the strength of the radioactive source is such that mean # of disintegrations/minute=24.What is the probblty of getting n counts in 10 secs?Get num values for all integral values of n from 0 to 8.

2006-12-28 18:48:28 · 2 answers · asked by Lindsay 1 in Mathematics

Is the part that grows into a chicken inside of the yolk, or is it in the white part?

2006-12-28 18:47:46 · 9 answers · asked by wufoo 1 in Zoology

I want to know as much as i can about black holes, thank you all for helping.

2006-12-28 18:44:15 · 11 answers · asked by Anonymous in Astronomy & Space

If the answer is they are made of non-magnetic materials,I would like to know if the ships and aeroplanes are made of magnetic materials what will be the impact of the North & South poles on them?Will it be negligible?

2006-12-28 18:44:06 · 5 answers · asked by karikalan 7 in Earth Sciences & Geology

This is a geometry question..some options left are triangle, tangent, midpoint, ellipse, square, and hexagon..i just cant figure it out..

2006-12-28 18:44:03 · 3 answers · asked by Sush517 2 in Engineering

i have been maturating from 4 years

2006-12-28 18:43:14 · 5 answers · asked by akshay k 1 in Botany

2006-12-28 18:39:52 · 8 answers · asked by Dhiman B 2 in Chemistry

2006-12-28 18:39:05 · 10 answers · asked by Anonymous in Biology

2006-12-28 18:38:14 · 18 answers · asked by Anonymous in Geography

Do people who subscribe to evolution believe that we are all humanly related, or do they think that people evolved from more than one protohuman? If evolution is an ongoing process, doesn't it seem logical that the genetic mutations envisioned by evolutionists must happen more than once. For evolution to be true, there has to be a series of mutations resulting in more complex organisms. Wouldn't this mutating be horizontal as well as verticle?

2006-12-28 18:31:25 · 7 answers · asked by iraqisax 6 in Biology

Can anyone help me to solve this question? It's not my homework but i'm interested in knowing the correct ways of solving it. Which theory is most approachable?

More specifically:
Let's just say the 4D has 20 prizes. I pay $1 every time for the same 4 digit number. How many times does it take for my number to be guarenteed a place in 4D?

I know the order of number counts, so Permutation is needed here but that's all i know.

2006-12-28 18:24:23 · 3 answers · asked by SSBCSS 1 in Mathematics

genrel

2006-12-28 18:23:17 · 1 answers · asked by Anonymous in Engineering

Here?
http://answers.yahoo.com/question/index?qid=20061228205238AAJ473i&r=w&pa=FZptHWf.BGRX3OFMhzNWV91rZR8gyzNAt6LUi_RhHR1YY5rlhYjtOsf5mymSaexDK3AegbU12F2e8_jgcQ--&paid=answered#Q8EtU2a1VjaLciz2w1DV0qsSpNohQ6HM9VsDQN8Fx.UDmz_JXAqG

Their question seemed normal, but the answers didn't.... And It's driving me crazy not knowing what's going on >.>

2006-12-28 18:21:14 · 7 answers · asked by Anonymous in Mathematics

Simplify it and validate the answer:

(a+b)2

Solution?


Validation?

2006-12-28 18:20:27 · 9 answers · asked by imran n 3 in Mathematics

OK, so this winter is warm in North America and Western Europe. Big deal. It's not global warming; it's just El Nino. Baghdad was 25 degrees F this morning. The Middle East is getting its coldest winter since 1964. Shouldn't you look at the entire world's weather before making hasty conclusions?

2006-12-28 18:19:48 · 10 answers · asked by Anonymous in Weather

i really dono
do ya???

2006-12-28 18:19:22 · 10 answers · asked by dsk 1 in Biology

can any one explain how i can solve a rubiks cube...and explain how the R F I and all those letters work
WEBSITES are also helpfull....high school student: C in Geometry
and B- in biology soo uhh explain thoroughly or else i wont have an idea wats going on

2006-12-28 18:18:53 · 5 answers · asked by matt s 1 in Mathematics

Plz. let me konw manufacturers name of ferric chloride

2006-12-28 18:15:31 · 3 answers · asked by Shahid A 1 in Chemistry

For example, ascorbic acid + Fe3+ ---> Fe2+ and ???

2006-12-28 18:14:58 · 2 answers · asked by Anonymous in Chemistry

2006-12-28 18:14:10 · 3 answers · asked by sarthak 3 in Earth Sciences & Geology

2006-12-28 18:11:44 · 15 answers · asked by vmi23 1 in Astronomy & Space

2006-12-28 18:11:41 · 6 answers · asked by Anonymous in Geography

2006-12-28 18:05:25 · 9 answers · asked by Alex 2 in Mathematics

2006-12-28 18:04:12 · 7 answers · asked by Anonymous in Physics