Science & Mathematics - 26 October 2007

Need suggestions for project i was thinking commercials?

2007-10-26 09:44:43 · 6 answers · asked by Anonymous in Mathematics

2007-10-26 09:44:20 · 13 answers · asked by Anonymous in Astronomy & Space

2007-10-26 09:41:51 · 2 answers · asked by Anonymous in Mathematics

is there any way you know if an ORB is real or just dust particles? And if its just dust, how do they turn into the shape of a circle ? Why are they only in one room and come in all sizes if its just dust and not real orbs? Thanks

2007-10-26 09:35:40 · 12 answers · asked by Thallasa35 2 in Paranormal Phenomena

is tehre any way you know if an ORB is real or just dust particles? And if its just dust, how do they turn into the shape of a circle ? Why are they only in one room and come in all sizes if its just dust and not real orbs? Thanks

2007-10-26 09:35:00 · 6 answers · asked by Thallasa35 2 in Paranormal Phenomena

And then produces a large seed pod hanging on a stem?

2007-10-26 09:34:55 · 4 answers · asked by Anonymous in Botany

I missed this day in class when my teacher went over the Kb and Ka values. How would I calculate the molar concentration of this question? Do I need an ICE chart and what values would I put where?


Calculate the molar concentration of OH - ions in an 1.32 M solution of hypobromite ion, BrO- (Kb = 4.0 10-6).

2007-10-26 09:30:56 · 2 answers · asked by Anonymous in Chemistry

y = 2x² - 3x + 4, =4x +1
Please show steps of working
It is out of the PearsonLongman AS Core for OCR textbook.
Thanks

2007-10-26 09:30:37 · 12 answers · asked by rmg12 2 in Mathematics

They don't have webs... You never see them with anything.

My mum told me she once saw a house spider run along the floor and jump to catch a wasp that was flying low in the house. It missed though. Could that be possible?

2007-10-26 09:28:38 · 1 answers · asked by let me have my fractured logic 5 in Zoology

2007-10-26 09:26:53 · 19 answers · asked by ♥Wendy♥ 1 in Astronomy & Space

(cot x) / (csc (-x))
= (1/tan x) / ( 1/sin -x)
=(1/tan x) X (sin -x / 1) ????
?
The answers given are
tan x
sin 2x
-cos x
cos x
or -cos^2x

any ideas on my next step?

2007-10-26 09:17:02 · 5 answers · asked by Anonymous in Mathematics

What is the difference between the cells that make a living thing up, and the cells that make a television up.

also... if chromosomes make cells, then what are chromosomes made of?

2007-10-26 09:14:17 · 9 answers · asked by Anonymous in Biology

Spcae folding has been talked about for traveling long distances.

2007-10-26 09:14:07 · 9 answers · asked by Wizzerd 3 in Astronomy & Space

I got to 9x2+30x^2y^2+25y^2. Now how do I simplify that? Or is that correct? the answer choices are like 9x^2+25y^2, 9x^2+15xy+25y^2, plus two others. Thanks a lot.

2007-10-26 09:11:05 · 8 answers · asked by ♫ ∫aoli 4 in Mathematics

why?
i just dont get it!

2007-10-26 09:03:29 · 5 answers · asked by Anonymous in Zoology

The air in a jar of home-canned green beans is heated to the boiling point of
water at 100oC and the jar is sealed at that temperature. Assume that the
pressure is 1.00 atm when the jar is sealed. What will be the pressure in the
jar when it is cooled to room temperature at 20.0oC?

2007-10-26 09:01:46 · 2 answers · asked by Anonymous in Chemistry

2007-10-26 09:01:03 · 3 answers · asked by Anonymous in Mathematics

y=x^2-6x+6
y-x=-4

2007-10-26 08:55:18 · 9 answers · asked by metsrule3029 1 in Mathematics

I am sure that the older people on this chatline have seen the clips showing the American Flag that was posted on the moon waving in the breeze, when there is no breeze in outter space!

And, now, the People's Republic of China will be launching their own moon exploration soon and what do you think they will find when they get to the moon, the American Flag maybe? How about the footprints left by our astronauts, or the surface vehicle and equipment we left behind?

What do you think the US Government really did with the billions of tax dollars they 'spent' on the moon exploration expenses?

I am seeking intelligent answers to this question, not silly answers.

2007-10-26 08:55:16 · 40 answers · asked by libertybell 2 in Astronomy & Space

2007-10-26 08:54:52 · 1 answers · asked by mhicks04 1 in Mathematics

2007-10-26 08:52:02 · 6 answers · asked by Anonymous in Mathematics

I'm trying to help my 10 years old niece for her Science Fair. What is the term used to explain this occurence? Would you say thermal conductivity? Thank you.

2007-10-26 08:51:09 · 1 answers · asked by cappuccino_lava 6 in Physics

y=(x^2)/(3x-1)

please show as much work as possible im pretty sure i did it wrong

2007-10-26 08:48:00 · 4 answers · asked by dee j 1 in Mathematics

2 sin x = sqrt(3)

The solutions are
x| x=__+2pi*k

and

x| x=__+2pi*k

2007-10-26 08:46:41 · 2 answers · asked by Anonymous in Mathematics

I read this on the web but didnt understand clearly... Can they really crawl out of water when it drys up and find more water? It would be an odd sight! How far could they go? So can they breath air?
If this is true does this mean catfish must be very closely related to the fish that crawled onto land at the very start of evelution!
Thanks !!

2007-10-26 08:45:37 · 12 answers · asked by let me have my fractured logic 5 in Zoology

2007-10-26 08:41:51 · 5 answers · asked by xo_kayla_444 2 in Physics

verify f(x)= x/x+1 satisfies the hypothesis of the mean value theorem on the interval [0,2]. Then find all values of c that satisfy the conclusion of the theorem.

please show as much work as possible!!

2007-10-26 08:41:17 · 2 answers · asked by dee j 1 in Mathematics

1 decreases
2 increases
3 stays the same
4 none of these

2007-10-26 08:40:30 · 3 answers · asked by tia 3 in Chemistry

I'm don't know how to solve this problem. Could someone assist me?

A manufacturing produces bolts of a fabric with a fixed width. The quantity q of this fabric (measured in yards) that is sold is a function of the selling price p (in dollars per yard), so we can write q=f(p). Then the total revenue earned with selling price is R(p)=pf(p).

a. What does it mean to say that f(20)=10,000 and f ' (20) = -350?

b. Assuming the values in part a, find R ' (20) and interpret your answer.

2007-10-26 08:35:59 · 1 answers · asked by sg88 1 in Mathematics

x^(2/3)+y^(2/3)=1

i posted this question better under the engineering section. but i still am stuck on this problem.

2007-10-26 08:30:27 · 1 answers · asked by james l 2 in Mathematics