Science & Mathematics - 3 February 2007

When it's cold outside, why does your nose run?

2007-02-03 04:08:28 · 4 answers · asked by stephy 3 in Weather

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

2007-02-03 04:08:16 · 5 answers · asked by Olivia 4 in Mathematics

1- What kind of home does bottlenose dolphins make for itself?
2- What does bottlenose dolphins do when the season changes?

2007-02-03 04:07:46 · 1 answers · asked by akdmkslady 1 in Zoology

A sample of sulfur having a mass of 1.28 g combines with oxygen to form a compound with a mass of 3.20 g. What is the empirical formula of the compound?

2007-02-03 04:05:24 · 3 answers · asked by jsock 1 in Chemistry

Anyway to make snow melt faster, like can I do something to the snow without buying something to make it melt? I dont want to wait for everything to melt... :P

2007-02-03 04:02:24 · 9 answers · asked by Suirenai 3 in Weather

2007-02-03 04:02:18 · 4 answers · asked by dantefan200 1 in Biology

like easy to build and very useful as well...

2007-02-03 04:01:08 · 1 answers · asked by scylla 1 in Engineering

need a scientific answer
Pls help its for my science coursework conclusion

2007-02-03 04:00:39 · 5 answers · asked by Luke J 1 in Chemistry

I need to know what $13,5600 timed by .0075 is please.

2007-02-03 04:00:02 · 7 answers · asked by garber_jamie 1 in Mathematics

2007-02-03 03:58:55 · 3 answers · asked by shafali v 1 in Chemistry

if a girl travels with a velocity of 20m/s[W] for 10seconds and then accelerates at 2m/s [E] for 4seconds. what is her diplacement after 14seconds? choices are:
a) 64m [W]
b) 216m [W]
c) 264m [W]
d) 280m [W]
e) 416 m [W]
thanks!!

2007-02-03 03:58:22 · 5 answers · asked by Anonymous in Physics

asimo is honda`s robot if you don`t know

2007-02-03 03:56:42 · 3 answers · asked by elite 3 in Engineering

I think it has something to do with a chemical reaction

2007-02-03 03:55:03 · 2 answers · asked by Me 2 in Chemistry

What is the universe.what is this world.can any body tell that .Is there any life after this world when we die,or are we gonna be alive again.How is this possible that a world in an empty space with out any support.How is this world created ,we know that every thing has a creator.How is that world dont have a creator.Who created this universe which is an infinity.No one got so far in the universe.only america saw mars through viking 1.How can a man create this world.Can u imagine,there is water in the earth but not in other planets.neither in moon,its the satelite of the world which revolve around the world in one orbit.Sun,moon,stars,black hole,and other planet etc who made this tell me ur answer plz...i want to know.]

2007-02-03 03:54:21 · 5 answers · asked by Ghost 1 in Astronomy & Space

2007-02-03 03:52:49 · 5 answers · asked by Anonymous in Chemistry

2007-02-03 03:51:52 · 3 answers · asked by Anonymous in Chemistry

I heard of purple haze, white widow, what are these are they more expensive? are more than just these types? and whats the the common one that everyone seems to smoke now a days

2007-02-03 03:51:36 · 1 answers · asked by triggnom2 1 in Botany

if most galaxies have a black holes a the centre of them, will a galaxy end by getting wiped out into it's own black hole?

2007-02-03 03:51:10 · 8 answers · asked by Anonymous in Astronomy & Space

log N is an irrational number, where N is a positive INTEGER.

2007-02-03 03:48:27 · 1 answers · asked by Kristada 2 in Mathematics

. . . . . 2.3
∫ [(cos x)/x] dx =
. . . . . .1.9

Correct to six decimal places, I came up with.... c. -0.094765

a. - 0.181097

b. -0.139520

c. -0.094765

d. -0.048752

e. 0.164432

f. 0.246669

g. 0.328928

h. none of these

2007-02-03 03:46:31 · 1 answers · asked by Olivia 4 in Mathematics

Why do the size of the microchips keep decreasing yet the memory keeps increasing? What do we owe this to? Why do semiconductors play a major role? Also why is the choice of the wire so important?

Why do the size of the microchips keep decreasing yet the memory keeps increasing? What do we owe this to? Why do semiconductors play a major role? Also why is the choice of the wire so important?
Why do the size of the microchips keep decreasing yet the memory keeps increasing? What do we owe this to? Why do semiconductors play a major role? Also why is the choice of the wire so important?
http://www.cnn.com/2007/TECH/01/25/densest.memory.circuit.ap/index.html
http://www.livescience.com/technology/070130_memory_chip.html
theres some info on those links

2007-02-03 03:46:07 · 1 answers · asked by Anonymous in Physics

r + 9r^(1/2) + 8= 0

r^(1/2) means the square root of r

Whenever I try to solve the equation i get 1 and 64 as my solutions. When i graph the equation, though, there are no solutions! Please help me

2007-02-03 03:44:13 · 6 answers · asked by no name 1 in Mathematics

2007-02-03 03:41:05 · 3 answers · asked by abcd1234 1 in Physics

How can I get 255 divided by 15. I need details how to do it I dont even Know if i got it right.Is it 16

2007-02-03 03:39:40 · 15 answers · asked by Anonymous in Mathematics

a. 1

b. x

c. 1/x

d. -x

or none of these

2007-02-03 03:32:32 · 3 answers · asked by Olivia 4 in Mathematics

2007-02-03 03:32:04 · 8 answers · asked by Joe N 1 in Geography

Because lets say you have captivated cats about more than 10, chances are there will be a lot of inbreeding going on.

How does the wild prevent inbreeding?

2007-02-03 03:31:53 · 7 answers · asked by forbidden_love500 1 in Zoology

2007-02-03 03:29:59 · 12 answers · asked by Aquamarinegurl 1 in Astronomy & Space

do cfl light bulbs run on ac or dc current?

2007-02-03 03:26:47 · 9 answers · asked by nasserc267 1 in Physics

The Planet Saturn:
I would love to visit the Moon Titan!!!

2007-02-03 03:25:08 · 13 answers · asked by Anonymous in Astronomy & Space