Science & Mathematics - 10 November 2006

I want to find tehcnical information in how does tachogeneratos works, but most of the searches in the web lead to manufactures who only give info about their products, but not the physical principle in the functioning of these machines. Do you any website were i can find pshysical information about tachogenerators?

2006-11-10 08:38:51 · 1 answers · asked by daitanaka 2 in Engineering

im doing a report, and i need to know what endangered animals live in wetlands. even if you only know one, please, please, please tell me!!!!

2006-11-10 08:37:21 · 2 answers · asked by tangerine 1 in Zoology

ok we're having the weirdest weather I have ever seen... it's like a blizzard and yet it is also thundering and lightning at the same time... how is that even possible.. I don't get it....

2006-11-10 08:36:23 · 7 answers · asked by Kelloggs 3 in Weather

f: R-->R

If f is everywhere differentiable with c = sup{lf'(x)l: x in R}<1
why is there a unique y in R for which f(y) = y
*lf'(x)l: absolute value of f'(x)

show counter-example that f is differentiable with lf'(x)l < 1
for any x in R, f need not have any fixed points in R

2006-11-10 08:36:21 · 1 answers · asked by Kevin B 1 in Mathematics

2006-11-10 08:34:39 · 3 answers · asked by Lily 1 in Zoology

2006-11-10 08:31:26 · 10 answers · asked by themightybrain 2 in Astronomy & Space

Log 4 a = k

Solve log k 4

This is a maths equation I need to work out for homework and tryed and failed hopefully somebody will post a solution the answer is 1/k by the way but I need the solution?

Thanks

2006-11-10 08:28:45 · 4 answers · asked by alanjb 1 in Mathematics

I built a structure out of stock pannel (15'x5' metal grid ). the total wind surface square footage is 8.4375ft^2. it has 240 lb of sand that holds it down by means of weight on feet at the botom of the structure. for the purpose of this, disregard any breaking points of any material. my question is how much wind would it take to knock it over? How do I work this out? How did you get to your answer?

2006-11-10 08:27:58 · 3 answers · asked by info2know 3 in Engineering

can someone please explain it briefly in bilogical form ?

thanks.

2006-11-10 08:27:39 · 4 answers · asked by Anonymous in Biology

well i need all the good information for my Biology project.
please cover as much as you can and as brifely as you can.

i have almost completed it but just want to make sure if there is anything better i can add.
thanks

2006-11-10 08:23:22 · 2 answers · asked by Anonymous in Biology

why is a fur seal called a fur seal when it looks more like a sealion and looks less like a seal?

2006-11-10 08:21:09 · 3 answers · asked by US 2 in Zoology

2006-11-10 08:20:35 · 3 answers · asked by Anonymous in Physics

10.0 liters of oxygen are contained in a diver's tank at 20.0C and 2.0 atm pressure. What is the pressure when the tank is left exposed to the sun and it is heated to 45C?

Ok--I know that [(Pressure1*Volume1)/Temperature1] = [(Pressure2*Volume2)/Temperature2]

but how would I solve this? I don't know what the volume increases to, so is this solvable?

2006-11-10 08:20:02 · 4 answers · asked by Josh 5 in Chemistry

this is grade 11 university biology. sweet. cept not.

2006-11-10 08:19:56 · 4 answers · asked by Anonymous in Biology

2006-11-10 08:18:24 · 3 answers · asked by D M 1 in Mathematics

2006-11-10 08:18:23 · 15 answers · asked by STORMY K 3 in Weather

in 2 paragraph's

2006-11-10 08:17:42 · 4 answers · asked by Anonymous in Weather

What the meeting was like?

2006-11-10 08:16:41 · 3 answers · asked by cucumis_sativus 5 in Zoology

I've found websites that will ship it to me but the shipping costs more than the herb and frankly takes too long. Help?

2006-11-10 08:16:27 · 3 answers · asked by Anonymous in Botany

2006-11-10 08:14:19 · 11 answers · asked by Deborah U 1 in Weather

2006-11-10 08:10:08 · 2 answers · asked by Illusion 2 in Earth Sciences & Geology

2006-11-10 08:06:07 · 9 answers · asked by Clintopia 2 in Engineering

I've read that the spot on jupiter is a storm that has lasted over 300 years.

However, the article did not explain why it has been going on for so long.

Would anyone know

2006-11-10 08:00:40 · 10 answers · asked by Anonymous in Astronomy & Space

Every interpretation i've read essentially just repeats the same statement, thus not explaining what it actually means.

If you painted a picture covering the outside of a fish-bowl, the fish would see something different for whichever way he looked...

2006-11-10 07:59:22 · 7 answers · asked by Im a killer 2 in Astronomy & Space

i need it for a school project

2006-11-10 07:58:52 · 10 answers · asked by Anonymous in Astronomy & Space

2006-11-10 07:58:38 · 2 answers · asked by heatwave 1 in Chemistry

i am learning about multicellur and cells and bacteria...

2006-11-10 07:58:37 · 2 answers · asked by Kirstin Marie 5 in Biology

the system works thus:- turbine, up pipe, plemun chamber throttle bodies...

2006-11-10 07:57:11 · 1 answers · asked by Anonymous in Engineering

How long in ms does it take sound to travel 4.25 inches under normal conditions.

2006-11-10 07:56:02 · 3 answers · asked by dderat 4 in Physics

Please help with How this is done!!!!

2006-11-10 07:55:18 · 6 answers · asked by Dave 1 in Mathematics