Science & Mathematics - 29 December 2006

2006-12-29 04:59:00 · 12 answers · asked by Anonymous in Astronomy & Space

2006-12-29 04:58:28 · 5 answers · asked by bluedragon9081 1 in Mathematics

When should the equation velocity=displacement/time be used instead of using these equations like v=u+at, v^2=u^2+2as, s=ut+1/2at^2 or s=1/2(u+v)t be used.
When should we use the u,v,s,t equations be used.
When should the equation velocity=displacement/time be used??

2006-12-29 04:57:45 · 5 answers · asked by Anonymous in Physics

2006-12-29 04:57:24 · 9 answers · asked by bluedragon9081 1 in Mathematics

2006-12-29 04:56:19 · 7 answers · asked by bluedragon9081 1 in Mathematics

x²log2-xlog16-xlog5+log16

2006-12-29 04:56:11 · 7 answers · asked by Ha!! 2 in Mathematics

For The Creator of the Universe?
Just this one little planet, around one little sun out of billions, in one small galaxy out of billions of galaxies?

2006-12-29 04:55:29 · 2 answers · asked by Repub-lick'n 4 in Astronomy & Space

I'm confused. Some people say that black holes have infinite density, but wikipedia says that a supermassive black hole is 10^36KG. HELP!

2006-12-29 04:54:08 · 6 answers · asked by gooeyjim 2 in Astronomy & Space

The numbers are 76, 89, 99, 125, 199. I need the next number, but would really appreciate knowing the formula to do this as well. Thanks!

2006-12-29 04:53:31 · 2 answers · asked by All hat 7 in Mathematics

I'm having a problem with this question and I have nothing else to check it by.
What mass of Na2CrO4 is required to precipitate all of the silver ions from 75.0 mL of a .100 M solution of AgNO3?
My answer is 1.21g.
Is this correct and if it is not, Why?
THANKS SO MUCH!!!!

2006-12-29 04:50:55 · 5 answers · asked by kyle c 1 in Chemistry

1/3x-5=1/2x I think is the equation I just don't know how to use the five-step method to solve it. or maybe the equation is wrong.

2006-12-29 04:45:45 · 18 answers · asked by kool_aid_1_00 1 in Mathematics

Where can I buy these items, for a decent price? Not online, prefferably.

Also, if I am putting acids in these tubes, will the tube melt? I need to put in hydrochloric (muriatic) acid in, etc...

2006-12-29 04:44:30 · 5 answers · asked by Anonymous in Chemistry

When should the equation velocity=displacement/time be used instead of using these equations like v=u+at, v^2=u^2+2as, s=ut+1/2at^2 or s=1/2(u+v)t be used.
When should we use the u,v,s,t equations be used.
When should the equation velocity=displacement/time be used??

2006-12-29 04:42:40 · 6 answers · asked by Anonymous in Mathematics

future research proposals and ideas on ecophysiology especialy on cold stress and photosynthesis as well as membrane function.

2006-12-29 04:39:47 · 2 answers · asked by arianarians 1 in Botany

Twenty-one girls and twenty-one boys entered a math contest.

Each contestand aolved at most six problems.
For each pair of a girl and a boy, there was at least one problem that was solved by both the giral and the boy.

Prove that there was a problem that was solved by at least three girls and at least three boys

2006-12-29 04:30:49 · 2 answers · asked by Twang 2 in Mathematics

In metaphase, there are 46 homologous pair of chromsomes a total of 92 sister chromatids. then in Anaphase, sister chromatids split up from the 46 homologous pair having 46 sister chromatids or (46 chromsomes since each chromatid is conmsidered a chromosome) then there are two cells of 46 chromatids or 46 chromosomes. Is this why there are 2 diploid cells at the end? 2 diploid cells meaning 46 chromatids or 46 chromosomes in each cell?

2006-12-29 04:29:23 · 5 answers · asked by avalentin911 2 in Biology

Many species of bats became protected by the Wildlife & Countryside Act. What does 'protected' actually mean? Obviously they are not hunted or killed, but apart from that, what other advantages does being protected offer?

2006-12-29 04:28:43 · 4 answers · asked by Dr Watson (UK) 5 in Zoology

2006-12-29 04:28:04 · 4 answers · asked by Anonymous in Botany

i want to know the areas of interest which can be filled in the resume..because i find it difficult to find out my areas of interest..

2006-12-29 04:28:00 · 2 answers · asked by such 1 in Engineering

The hardware stores website showed the sulfuric acid in a regular bottle that looked like plumber's equipment. I think it is dilluted with other chemicals. So, if my experiment is how acids affect different metals, will the sulfuric acid from the store act differently than just water-dilluted sulfuric acid?

2006-12-29 04:25:57 · 7 answers · asked by Anonymous in Chemistry

A 4x4x4 cubical box contains sixty-four identical small cubes that exactly fill the box. How many of these small cubes touch a side or the bottom of the box?

2006-12-29 04:24:44 · 12 answers · asked by gear head 1 in Mathematics

When ancient Callender ends?! (Myan)

2006-12-29 04:24:15 · 9 answers · asked by CECIL458 1 in Astronomy & Space

2006-12-29 04:23:12 · 10 answers · asked by joshi_a_r_7122 1 in Biology

I think the answer is 2 and 8 but I have no clue how to write in question form. I got 2 and 8 because in four years they would be 6 and 12 can someone tell me how to write out the equation??

2006-12-29 04:21:56 · 7 answers · asked by kool_aid_1_00 1 in Mathematics

can carbonates displace hydroxides?

2006-12-29 04:20:20 · 3 answers · asked by RT 2 in Chemistry

please tell me if this is correct.
in metaphase 1: there are 46 homologous chrmosomes(is this right? or 23 homologous chromosomes) then there are 23 homologous chromosomes= 46 chromatides at each pole in Anaphase 1. In Telophase 1 and Cytokinesis, there are 23 homologous pair of chromosomes or chromatids in each cell(2 cells). Then prophase II, there are two 23 homologous pair of chromosome in two cells to start out with (46 chromatids). then Metaphase II, the 23 homologous pair of chromosome separate chromatids to each pole, each pole having 23 chromatids. so this happens twice because of two cells. Now Telophase II, Cytokinesis there are 23 chromatids in each cell (4 cells) I assume that now since chromatids are separated they are now called chromosomes is this right? As a result we have 4 haploid cells. Do we have 4 haploid cells because in each cell there are 23 chromatids or 23 chromosomes?

2006-12-29 04:19:52 · 2 answers · asked by avalentin911 2 in Biology

2006-12-29 04:18:30 · 4 answers · asked by mud 1 in Medicine

2006-12-29 04:17:37 · 4 answers · asked by étoile 2 in Zoology

would all the moiving circles and liqiud reminmd you of the sky and ocean and think youd find out were a a surprise was

2006-12-29 04:16:21 · 3 answers · asked by Anonymous in Botany

2006-12-29 04:13:53 · 7 answers · asked by McQ 1 in Chemistry