Science & Mathematics - 30 November 2006

2006-11-30 07:48:42 · 5 answers · asked by amir_amaturastro 1 in Astronomy & Space

2006-11-30 07:47:36 · 6 answers · asked by TJH 2 in Mathematics

2006-11-30 07:45:24 · 7 answers · asked by victimofthekillers 1 in Astronomy & Space

When i say what chemicals i mean like as far as breaking it down to the periodic table. And as a chemist or thinking as a chemist would how would i explain the reation light or chemicals to develop have of unprocessed film.

2006-11-30 07:45:16 · 2 answers · asked by Raven 1 in Chemistry

2006-11-30 07:44:30 · 7 answers · asked by Anonymous in Chemistry

I have a hypothesis testing question which I'm having trouble with, any informative help would be welcome.

There is a hypothetical brewery and it has 5 taps for filling cans (which tap fills a can is entirely random). The can must be filled with 1000units, but above this has to be kept to a minimum to avoid overfilling. Every now and then a red can is sent through the system of blue cans, and the tap used to fill it and how much it is filled with is noted. Therefore I have a set of data with 30 fill amounts for each of the 5 taps.

By analysing the data decide if any tap appears to be filling the cans with more beer than other taps?

For this I have done hypothesis of; H0: u1-u2>=0 and HA: u1-u2<0. Is this correct?

If so, do I use the left tail of a one tailed distribtuion diagram?

2006-11-30 07:44:23 · 1 answers · asked by Anonymous in Mathematics

EVA is a type of glue used to stick the layers of a solar panel together. What is it? How does it work and why is it see through, infact - Why is PVA see through?

2006-11-30 07:43:57 · 1 answers · asked by Anonymous in Chemistry

I have a hypothesis testing question which I'm having trouble with, any informative help would be welcome.

There is a hypothetical brewery and it has 5 taps for filling cans (which tap fills a can is entirely random). The can must be filled with 1000units, but above this has to be kept to a minimum to avoid overfilling. Every now and then a red can is sent through the system of blue cans, and the tap used to fill it and how much it is filled with is noted. Therefore I have a set of data with 30 fill amounts for each of the 5 taps.

By analysing the data decide if any tap appears to be filling the cans with more beer than other taps?

For this I have done hypothesis of; H0: u1-u2>=0 and HA: u1-u2<0. Is this correct?

If so, do I use the left tail of a one tailed distribtuion diagram?

2006-11-30 07:43:18 · 1 answers · asked by Anonymous in Mathematics

f(x)= 9x^3-lnx?
1. domain is all real numbers
2. it is always concave up
3. it has no relative minima
4. it has one relative maximum
5. it has one point of inflection.

i crossed out 3, 4, and 5 because it does have a relative min?
there is no relative max because it always goes up to infinity?
and it seems to have no point of inflection because it is concave up?
is any of this right?
im thinking its number 2? what do you think?

2006-11-30 07:43:16 · 6 answers · asked by Anonymous in Mathematics

2006-11-30 07:43:09 · 4 answers · asked by big baby 1 in Physics

HELP ME!

2006-11-30 07:40:38 · 7 answers · asked by angie s 2 in Earth Sciences & Geology

The Bible tells us that G*d reacted to the threat of Earthling invasion by foiling the Tower of Babel project, and causing confusion with different languages. This proves that Heaven is within the Earth's atmosphere, as people back then lacked the technology to breathe beyond the atmosphere, and there'd be no reason to be threatened if they were just going to asphyxiate once the tower was tall enough.

So since Heaven is "up there" within reach of ancient engineers, why don't planes ever crash into it?

2006-11-30 07:38:53 · 12 answers · asked by Anonymous in Astronomy & Space

2006-11-30 07:38:46 · 6 answers · asked by mrada6 2 in Physics

i have homework to do in chem. and i can't figure out the balanced equation for burning oxygen and cellulose. i think the equation starts as O2 + C52H84O22 and i know it equals an unknow amount of CO2 and water. PLEASE HELP!

2006-11-30 07:38:30 · 1 answers · asked by :P 3 in Chemistry

2006-11-30 07:38:04 · 5 answers · asked by victimofthekillers 1 in Astronomy & Space

I'm fascinated by particle physics, but I can't quite grasp quarks. What are they some kind of energy? Also, (in plain English) why do they have funny names like up, down, left, right, etc.?

2006-11-30 07:36:47 · 6 answers · asked by toko 3 in Physics

True or False?

2006-11-30 07:36:42 · 3 answers · asked by metal m 1 in Biology

I nee help on HOMEWORK

2006-11-30 07:36:33 · 11 answers · asked by Anonymous in Mathematics

2006-11-30 07:36:31 · 5 answers · asked by Blake I 1 in Astronomy & Space

Solve. 1. 1/2(3x+2)=13 2. -2(6-5a)= -8 3.-8(3p-2)=8 4. 5(7+n)=36 5. 8y-(3-6y)= -1 2/3 6. 2(3b+4)-(b-5)=12

2006-11-30 07:34:59 · 7 answers · asked by steelerxfan 2 in Mathematics

2006-11-30 07:34:08 · 5 answers · asked by dawn p 1 in Biology

2006-11-30 07:33:07 · 19 answers · asked by nothingspecial 1 in Physics

2006-11-30 07:32:45 · 7 answers · asked by mister roy jones 2 in Mathematics

I need to take a drug test for target. I smoked yesterday about 3 pm I have a drug test tonight at 10:20 pm....what is my best bet for passing the test. Or at least giving me more time

2006-11-30 07:31:43 · 16 answers · asked by Matthew 1 in Medicine

HELLP!
if you respond quickly i will choose your answer as best

2006-11-30 07:30:34 · 5 answers · asked by angie s 2 in Earth Sciences & Geology

2006-11-30 07:27:37 · 8 answers · asked by geniusgearguy 2 in Geography

seen a documentry on it, need others honest but serious opinions, ty.

2006-11-30 07:24:35 · 7 answers · asked by Gary88 1 in Physics

2006-11-30 07:24:12 · 7 answers · asked by JJS 1 in Mathematics

A skydiver weighs 500 N, and has a mass of 50 kg. The skydiver jumps out of a plane, and falls through air. As the skydiver continues to fall and speed up, the air drag on them increases. After they've sped up to a certain speed, the force of air drag is 500 N upward on them.
What will now happen to the sky diver once the air drag equals their weight?

(CHOOSE ALL THAT APPLY)

[ ] Their velocity will decrease
[ ] Their acceleration becomes zero
[ ] They will stop in mid air
[ ] Their velocity will increase
[ ] They will maintain constant velocity from then on
[ ] They will still accelerate, but at less than "g"
[ ] They will no longer accelerate

2006-11-30 07:21:19 · 11 answers · asked by James W 2 in Physics

define the differences between Embryonic Stem Cells, Adult Stem Cells, and Cloning.

2006-11-30 07:21:07 · 1 answers · asked by Anonymous in Biology