Science & Mathematics - 24 September 2006

plz help me?is it a physical change or a chemical
'

2006-09-24 03:18:57 · 10 answers · asked by sana_ahmad75 1 in Chemistry

= x^2 + 3, if x < 0
= 0, if x = 0
f(x) = x^2 - 3 if 0 < x < 2
= 1 if x = 2
= x^3 - 7 if 2 < x.
Then lim ........................ f(x) =
x=>0+

2006-09-24 03:16:10 · 6 answers · asked by Olivia 4 in Mathematics

how to find it

2006-09-24 03:15:57 · 2 answers · asked by javad khosraviyan 1 in Astronomy & Space

2006-09-24 03:13:42 · 1 answers · asked by mary m 1 in Other - Science

2006-09-24 03:09:35 · 14 answers · asked by khushboo a 1 in Mathematics

and the pressure of the bloodflow? Why its unit is different than ordinary pressure unit ie bar or N/mm2 or dyne/cm2 etc? again,why the units are different in higher bp and lower bp? what is meant by those unit? (diahstolic or so is the name of one of the units).Only serious answers please

2006-09-24 03:07:47 · 7 answers · asked by shree30 1 in Medicine

lim ...............(x^2 - 9)/(x^3 + 27)
x=>-3

2006-09-24 03:05:17 · 4 answers · asked by Olivia 4 in Mathematics

is this story about a planet beyond pluto substantuated or opinion.has it ben named yet?

2006-09-24 03:03:04 · 15 answers · asked by houdini 3 in Astronomy & Space

2006-09-24 03:02:03 · 7 answers · asked by Olivia 4 in Mathematics

please help me

2006-09-24 03:01:32 · 5 answers · asked by babis p 1 in Mathematics

2006-09-24 02:58:22 · 7 answers · asked by Anonymous in Biology

What are the differences between normal flashlights and LEDs???

2006-09-24 02:51:13 · 6 answers · asked by Anonymous in Engineering

2006-09-24 02:48:27 · 9 answers · asked by Pam 1 in Mathematics

2006-09-24 02:47:18 · 5 answers · asked by sharon c 1 in Physics

different people have different allergies, some are allergic to face powder,some allergic to touch washing soap, in their meals some particular vegetable or fruit, and at times if they unknowingly used or ate the particullar allergetic thing then on knowing about it later they fall sick. what is this and how does this happen in human system?

2006-09-24 02:46:04 · 10 answers · asked by kailash s 2 in Other - Science

In our world where the inner gravity and pressure against the Vacuum of space light curves and half our Earth emit's heat, thus the best answer would be choose one?
A: Landing a space space shuttle at 4 am would give less heat energy on re-entering the atmosphere.
B: Not at all ,the mass of a planet puts pressure on space.
C: About 1pm would be the best time of the day to land a space shuttle when the the Sun's light has curved it's light energy around our upper atmosphere giving less heat pressure on any shuttle heat tiles.

2006-09-24 02:43:00 · 4 answers · asked by Anonymous in Astronomy & Space

2006-09-24 02:42:58 · 5 answers · asked by Anonymous in Physics

2006-09-24 02:33:00 · 6 answers · asked by jhaziel o 1 in Chemistry

2006-09-24 02:32:49 · 5 answers · asked by Anonymous in Mathematics

2006-09-24 02:32:01 · 3 answers · asked by jhaziel o 1 in Chemistry

genetic engineering!!

2006-09-24 02:31:14 · 3 answers · asked by Anonymous in Biology

2006-09-24 02:30:18 · 4 answers · asked by jhaziel o 1 in Chemistry

try dopller effect

2006-09-24 02:29:54 · 3 answers · asked by Anonymous in Physics

2006-09-24 02:29:02 · 1 answers · asked by that kid with strange interests! 1 in Physics

Hi, folks. I was just discussing evolution with a very intelligent Creationist over on the Religion and Spirituality board & then through private emails and s/he made me really examine my belief in evolution. So I'm coming to learn a bit more about what I profess to believe.

Is the primary driving force behind macroevolution mutations? And in primates, since we only give birth to one every 9 months per fertile female, the mutation would have to be either dominant - and thus, wouldn't it eventually eclipse the non-mutated creature, or there would have to be a mass mutation with a sudden spike in births with the mutation, right? Can that - in primates that produce offspring so slowly - actually result in divergent evolution?

Sorry if this is a really stupid question. Please put it in terms that an English major will understand! Thanks!

2006-09-24 02:28:46 · 5 answers · asked by ZombieTrix 2012 6 in Biology

2006-09-24 02:26:18 · 6 answers · asked by Anonymous in Mathematics

A polynomial represented by f has a constant term 5, and f(3) = f(-3) = 6. What is the remainder when f is divided by x^3 - 9x?

I've managed to factorise the divisor to x(x-3)(x+3) which seems to match up with the values above. After that I have no idea.

2006-09-24 02:24:00 · 2 answers · asked by jeremykong2 2 in Mathematics

2006-09-24 02:16:32 · 4 answers · asked by Anonymous in Chemistry

IC is from an LG1715 flatscreen power board. Identification is: "FAN7601 VE26" I assume it is a Fairchild Green Current Mode PWM Controller but I cant find any UK stockists (such as RS Compounents). Can anyone give me a supplier or equivalent IC sourceable in the UK?

http://www.fairchildsemi.com/ds/FA/FAN7601.pdf

2006-09-24 02:15:52 · 5 answers · asked by Anonymous in Engineering

I am trying to calculate how many gallons of water I use per month but my water bill has it recorded in cubicmeters can anyone help me with the conversion
How much gallons is 31 cubic meters?

2006-09-24 02:12:05 · 6 answers · asked by pudding heart 1 in Mathematics