Science & Mathematics - 10 February 2007

2007-02-10 13:23:46 · 6 answers · asked by Razor 1 in Mathematics

sorry about my english I´m not from here but my question is about meteorites .
why do we have to wait for meteorites when our planet is made out of the same matter as the universe itself?
don´t we have our own meteorites at home?
are meteorites made of different material worth the search?

2007-02-10 13:22:39 · 5 answers · asked by Anonymous in Astronomy & Space

Like (, and [ and infinity and -infinity.

2007-02-10 13:21:40 · 5 answers · asked by s a 1 in Mathematics

2007-02-10 13:19:34 · 19 answers · asked by Anonymous in Other - Science

I always hear people talk about how hard physics was or is.Why is this?Is it the math,or is it to abstract?What?

2007-02-10 13:18:46 · 9 answers · asked by fred 3 in Physics

If there are other universes, lets say, an infinite number of universes, then what are the chances that an exact duplicate of this earth exists on one of those universes? Or that another YOU exists somewhere else in space and time?

2007-02-10 13:18:32 · 9 answers · asked by Richard C 2 in Astronomy & Space

I'm trying to calculate the T.O.F to go from earth to mars on several trajectories, but i wasn't sure if the hohmann had the longest time of flight. Does it?

2007-02-10 13:18:23 · 4 answers · asked by xtreme_ashwin 1 in Astronomy & Space

2007-02-10 13:18:10 · 3 answers · asked by cj_102505 1 in Engineering

2007-02-10 13:15:56 · 20 answers · asked by KN 1 in Other - Alternative

pollen tubes

2007-02-10 13:13:33 · 2 answers · asked by Anonymous in Botany

Describe cell signalling effects of caffiene that relate to its role as a stimulant.

2007-02-10 13:13:23 · 2 answers · asked by Alan l 1 in Biology

I have been shocking everything and everyone lately. I don't even have rugs, so I'm not sure what's causing it. I got up to change the channel on the satelite tv box today and gave/recieved a shock so bad that the receiver shorted and reset itself. How can I rid myself or my house of static?

2007-02-10 13:13:16 · 5 answers · asked by wannaknowdis 1 in Engineering

i'm curios how does electricity form ehile u sleep and the in the morning when u wake up ur hair stands up and shoks u when u touch it

2007-02-10 13:12:29 · 4 answers · asked by danielle d 2 in Other - Science

can someone explain how to do this problem:

7 3rd root of 9 - 2 3rd root of 72

-4 4th root of 405 + 4th root of 80

Thanks!!!

2007-02-10 13:11:24 · 4 answers · asked by Mia16 3 in Mathematics

2007-02-10 13:11:08 · 11 answers · asked by elijahkan8 2 in Chemistry

if the air bubble was trapped in the solid??

2007-02-10 13:11:08 · 1 answers · asked by ma.roddy 1 in Chemistry

2007-02-10 13:10:52 · 3 answers · asked by kendric w 1 in Chemistry

i have a box that there is this gases into it No/No2/Co/Co2/So2.now i want to separate this gases from each other.but how can i do this?

2007-02-10 13:09:07 · 5 answers · asked by Anonymous in Chemistry

2007-02-10 13:07:19 · 6 answers · asked by questionwala 2 in Physics

2007-02-10 13:07:05 · 2 answers · asked by KN 1 in Zoology

See: http://en.wikipedia.org/wiki/Area_51:_The_Alien_Interview

2007-02-10 13:04:50 · 6 answers · asked by darth_maul_8065 5 in Astronomy & Space

Thanks you so much! Please state your source. :)

2007-02-10 13:04:42 · 2 answers · asked by Okay.... 3 in Earth Sciences & Geology

Each problem has two equations. Here are my problems (There is 6 of them)

#1.
x-y = 1
4x+3y= 11

#2.
2x-y= -11
-x+2y =13

#3.
y= -2x + 4
2x+y= 4

#4.
y = -6
2x + 2y = -12

#5.
x + y = 4
y = -x + 1

#6.
2x+3y= -1
4x+6y = -2

How do you solve these and what would the answers be? My teacher said if the lines cross the answer is (x,y). If the lines are parallel there is No Solution. And, if the lines are parallel and overlap, there are infinite solutions. So if someone can easily explain to me how to do this, I will appreciate it. Thanks.

2007-02-10 13:03:25 · 8 answers · asked by yoshi2919 2 in Mathematics

2007-02-10 13:01:33 · 4 answers · asked by amir 1 in Mathematics

I wrote something on my desk in math yesterday. He found out and he made me clean it, which is respectable. But now he keeps callin me the name I put on the desk. Hes really getting on my nerves, what could I do?

2007-02-10 13:01:13 · 13 answers · asked by GO BENGALS 2 in Mathematics

i was crushed by a forklift carrying a pallet and it hurt this woodnt be the 1st time ,then two cars nearly knock off my motorbike bike within 5 mins, it rains when i take the dogs out for a walk everytime, why o why is it always me??????????????????????????????????

2007-02-10 13:00:21 · 5 answers · asked by Anonymous in Weather

In Drosophila, Dichaete (D) is a chromosome 3 mutation with a dominant effect on wing shape. It is lethal when homozygous. The genes ebony (e) and pink (p) are chromosome 3 recessive mutations affecting body and eye color, respectively. Flies from a Dichaete stock were crossed to homozygous ebony, pink flies, and the F1 progeny, with a Dichaete phenotype, were backcrossed to the ebony, pink homozygotes. The results of this back cross were

Phenotype
Number

Dichaete
401

ebony, pink
389

Dichaete, ebony
84

pink
96

Dichaete, pink
2

ebony
3

Dichaete, ebony, pink
12

wild type
13


(a) Diagram this cross, showing the genotypes of the parents and offspring of both crosses.

(b) What is the sequence of and interlocus distance between these three genes?

2007-02-10 12:59:14 · 1 answers · asked by Lilac 2 in Biology

I am given this formula (7/4)pi r^3 where pi is 4.5678, and I am given two values in centimeters 7.10 cm and 7.00 cm.

Am I suppose to replace the centimeters in r^3 and multiply it with (7/4) and pi?

2007-02-10 12:58:47 · 4 answers · asked by Anonymous in Mathematics

please tell me some of the basic stuff about evolution.

2007-02-10 12:57:21 · 14 answers · asked by boratiskuta 1 in Biology

2007-02-10 12:54:24 · 6 answers · asked by Anonymous in Mathematics