English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Science & Mathematics - 16 September 2006

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

If x=y
Multiply by ( x ) -> x^2 = xy
Subtract (y^2) -> (x^2 – y^2) = (xy – y^2)
-> (x-y)(x+y)=y(x-y)
(x-y) cancels from both sides
-> x+y=y
-> y+y = y
-> 2y=y
-> 2=1
????????

2006-09-16 23:59:55 · 6 answers · asked by Anas 3 in Mathematics

Do they sit around all day messing about with stuff to see what happens or is there a greater intelligence pointing them in the right direction

2006-09-16 23:59:43 · 18 answers · asked by ? 6 in Other - Science

How might antigravity be produced?
Willit be generated somehow?

2006-09-16 23:44:24 · 7 answers · asked by Anonymous in Astronomy & Space

They are venomous but they can't bite.
They have wings but they can't fly.
They have legs but they can't walk!
They are ridiculous creatures, yet they have managed to predate the dinosaurs and still bumble about the Earth as if permanently drunk. Surley nature could not have created such a thing, without a sence of humour!

2006-09-16 23:34:43 · 27 answers · asked by Anonymous in Zoology

Identity the rules set by the IUPAC system on naming and writing formulas of:
1. Tertiary Compounds
2. Binary/ Tertiary Acids

* Give examples for each

2006-09-16 23:33:20 · 3 answers · asked by Ryan 1 in Chemistry

If I say things really slowly . I think it does !

2006-09-16 23:31:41 · 22 answers · asked by Anonymous in Other - Science

so how hot is the moons core?

2006-09-16 23:30:42 · 2 answers · asked by Jason 2 in Astronomy & Space

Can somebody please help me with this question, and also guide me as to what steps I need to take to solve this? Thank you!

2006-09-16 23:24:34 · 3 answers · asked by fillmachineoperator 1 in Chemistry

What I mean, were we brought here by another intelligent race as an experiment

2006-09-16 23:22:25 · 10 answers · asked by ? 6 in Astronomy & Space

Is there a SIMPLE formula for determining if an UNKNOWN number is odd or even? If "unknown number = n," then n / 2 doesn't work if n is equal to 1. Get it?

2006-09-16 23:20:02 · 9 answers · asked by The Baron 3 in Mathematics

Can anyone beat 13 seconds!

2006-09-16 23:18:42 · 13 answers · asked by Anonymous in Biology

A(-4;-1), B(1;4), C(3; -5), D(-2;-4), E(3;-3),F(1;-1), G(3;5), H(-2;-3) and K(-2;5). which three points lie on a straight line, which four points form a parallelogram, what else can be deduced from the given points. show all calculations and provide an explanation of your method.

2006-09-16 23:18:01 · 2 answers · asked by Evie 1 in Mathematics

There are three salts that is yet to be identified:

lead nitrate
iron 2 sulphate
ammonium chloride

can someone help me how to identify this salts or sites to this things?

2006-09-16 23:17:23 · 4 answers · asked by Anonymous in Chemistry

"timetravel" f.e.to 1945 would mean:regrouping matter(atoms,strings...name it whatever you prefer)back as "it was" at that time.So in my opinion "time" is the RELATION of matter."Relation"as they exist in maths,no real things.So to me "the fourth dimension"(so thrilling in science fiction) does'nt really exist.Of course,in maths we can create fourth,fifth etc dimensions and work very well with them.I have always been frustrated with Einstein's(Onestone hihi)"Time is relative". Marcel says:"time is a relation".It may seem only a symantic problem but as for me it is a filosofical (or even more)one.

2006-09-16 23:05:45 · 8 answers · asked by Anonymous in Physics

Please list the steps involved

2006-09-16 23:03:24 · 6 answers · asked by teacher's pet 2 in Mathematics

2006-09-16 22:59:09 · 3 answers · asked by Iron_maiden 1 in Other - Science

2006-09-16 22:55:48 · 10 answers · asked by eswaran 1 in Physics

2006-09-16 22:54:04 · 10 answers · asked by xrayeagle 1 in Astronomy & Space

How might antigravity be produced?
Willit be generated somehow?

2006-09-16 22:51:18 · 6 answers · asked by Anonymous in Physics

i hav a science test tomorrow for 100 ,marks..i have 5 lessons in biology..3 in physics and 2 BIGGGGG lessons in chemistry.ive finished studying but im afraid that i may not remember everything.....moreover.im VERRRYYYYYYYYYYYYYYYYYYYYYY tensed.im extremly worried plzzzzzzz help me

2006-09-16 22:41:00 · 9 answers · asked by Janani . 2 in Other - Science

2006-09-16 22:38:30 · 7 answers · asked by abyss692 1 in Biology

2006-09-16 22:37:04 · 5 answers · asked by Anonymous in Biology

2006-09-16 22:36:46 · 2 answers · asked by Anonymous in Biology

from camcorder with RCA connector to display on TV monitor

2006-09-16 22:33:59 · 2 answers · asked by sharudin h 1 in Engineering

-We say that the value of omega (exact) should be of 1,023 +- 0,02, which suggests that space with 3 dimensions is closed?

-the metric fluctuates in the infinitely small, then why its principal characteristic,its signature, should remain fixed?

-Is the mode ultracour of quantum gravity intrinssically topological so that the continius degrees of freedom desappear?

-Today, the speed of expansion of the universe rises with 72 km/s, and the value of the density of the universe is lower than the value of critical density. If the value of the universe exceeds the critical value, the expansion of the universe will be reversed completely and thus ended up this finding with the length of Planck? (big crunch)

2006-09-16 22:30:26 · 1 answers · asked by o0_belgium_0o 4 in Astronomy & Space

2006-09-16 22:24:43 · 8 answers · asked by amruta_pore 1 in Biology

something really which stands out from the rest?

2006-09-16 22:23:13 · 6 answers · asked by FRANCI 1 in Medicine

fedest.com, questions and answers