Science & Mathematics - 11 February 2007

alliens bases?

2007-02-11 16:23:19 · 16 answers · asked by hygrass 4 in Astronomy & Space

can anybody help me?

2007-02-11 16:22:41 · 8 answers · asked by jabour j 1 in Mathematics

then does that mean that the future is going to be dark? Just some food for thought.

2007-02-11 16:21:31 · 8 answers · asked by democrat13 2 in Physics

Ok, I got the explanations from you people last time. I got stuck...math isn't my thing.

(x^3-3x^2+x-8)÷(x-1)

I got,
............x^2+3x^2
............___________
x-1 into x^3-3x^2+x-8
............-x3
............___
............0-3x^2
............+3x^2
............_____
............0+X

now what? Do I put 1 because x to become x is multiplied by 1?

2007-02-11 16:20:00 · 4 answers · asked by Onions 2 in Mathematics

2007-02-11 16:16:55 · 2 answers · asked by ar_phoenix 1 in Chemistry

2007-02-11 16:16:32 · 6 answers · asked by jimmy lie 1 in Physics

Basically I am talking about space-time. I have heard people say that time is like the fourth dimension, but when we are talking about dimensions, aren't we talking about space? Einstein says that space and time are linked, so then it would seem to follow that there could still be 3 dimensions up/down (altitude), east/west (latitude), north/south (longitude), but the space it each direction is now linked to time. We just don't notice the link because we are not traveling close enough to the speed of light (or fast enough).

2007-02-11 16:16:01 · 5 answers · asked by Wonderer 1 in Physics

The diagonals of a square are perpendicular.

2007-02-11 16:14:45 · 3 answers · asked by Cat 1 in Mathematics

Solve for x:

5^x - 5^(x-2) = 120(sqrt 5)

2007-02-11 16:11:39 · 2 answers · asked by Anonymous in Mathematics

I need help with

4y-1/2y^2+5y-3 - y+3/ 6y+y-2 I know that I'm using Subtracting rational expressions, but I can't seem to factor the denomators.

2007-02-11 16:11:12 · 3 answers · asked by Anonymous in Mathematics

2007-02-11 16:05:35 · 6 answers · asked by Out4lox 2 in Earth Sciences & Geology

I would like to know the scientific reason for this. Any guess to what way it would affect India and the World?

2007-02-11 16:04:52 · 9 answers · asked by comrade 4 in Earth Sciences & Geology

Solve for x:

log (base 3) x + 4 log (base 9) x = 12

2007-02-11 16:04:11 · 1 answers · asked by Anonymous in Mathematics

For example if you look at census data of US cities with populations over 5000, you'll find that 30% of the populations start with a 1.

2007-02-11 16:03:18 · 1 answers · asked by di_zou 2 in Mathematics

What examples of natural selection and evidence for evolution exist today that have helped people to now accept Charles Darwin's theory?

2007-02-11 16:03:18 · 4 answers · asked by Sarah S 3 in Biology

2007-02-11 16:03:10 · 22 answers · asked by Anonymous in Earth Sciences & Geology

Solve for N in terms of X: (all logs are base 10)

8 log N = log x^(3/2) + log 2 - 1/2 log x + log x^3 - log 2/x^4

2007-02-11 16:02:16 · 1 answers · asked by Anonymous in Mathematics

Why did people not accept Darwins theory at the time of its writing?

2007-02-11 16:01:12 · 3 answers · asked by Sarah S 3 in Biology

2007-02-11 15:59:18 · 1 answers · asked by Anonymous in Biology

Once again I am having trouble comeing up with these answers.

Explain why xylem and phloem together can be considered to be transport systems.

Thanks in advance.

2007-02-11 15:59:07 · 4 answers · asked by Silly_Smilly 3 in Botany

If I write that geologists study the earth, do you capitalize earth or not?

2007-02-11 15:57:58 · 6 answers · asked by Sarah S 3 in Earth Sciences & Geology

Ok, heres the question-

A hydrogen molecule consists of two hydrogen atoms whose total mass is 5.3 10-26 kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is about 1.94 10-46 kgm2. Estimate, from these data, the effective distance between the atoms.

2007-02-11 15:55:25 · 2 answers · asked by Churro 2 in Physics

Technology will most likely be in existence, but change is something people fear. Our species seems to cling to ignorance *but this observation may only apply to those in my area* so why do you think that in 50yrs time we will learn to trust flying cars? Also, though it was long before my time, my father tells me tales of promises made to colonize the moon by 2000, but we're in 2007 now and I've yet to hear of a manned visit to the moon since 1960-something *69 i think, but could be and probably am wrong* and even that landing was fairly debatable. We can't even get to space reliably, what with so many things going wrong and having the ship blow up seconds after lift-off.

What I'm wondering is if we should really get excited about the prospect of flying cars in our lifetimes, or should we see it as simply a pipe dream?

2007-02-11 15:55:19 · 16 answers · asked by mandy 3 in Astronomy & Space

It is related to analysis of variances ANOVA

2007-02-11 15:54:49 · 3 answers · asked by KESHAV K 1 in Mathematics

http://www.xzone-radio.com/20070203_35.htm

2007-02-11 15:52:54 · 3 answers · asked by Anonymous in Zoology

Problem 1: When 18 seconds elapse on a clock on the alien spaceship traveling at 4/7, how much time elapses on Earth clocls according to Earth observers?

Problem 2: The aliens observe an experiment on Earth as they fly by at a speed of 4/7. If Earth observers measure the duration of the experiment to be 30 seconds, what will be the duration of the experiment according to the alien observers?

2007-02-11 15:51:59 · 4 answers · asked by Anonymous in Physics

Why can the gram stain be used to differentiate bacteria, but not other microbial cells?

2007-02-11 15:51:22 · 4 answers · asked by stargirl2000s 2 in Biology

All the killing that took place in Lebanon was done with US weapons, why the doble standard.!!!???

2007-02-11 15:51:03 · 8 answers · asked by Anonymous in Geography

2007-02-11 15:50:07 · 3 answers · asked by shawn t 1 in Medicine

A) 15
B) 105
C) 1365
D) 210

Please explain your answer...

2007-02-11 15:49:17 · 6 answers · asked by Dan 3 in Mathematics