Science & Mathematics - 21 July 2006

What are the advantages and disadvantages each for a delta power system and a grounded Y power system? I am referring this as a high voltage distribution system (2.2kv to 69kv).

2006-07-21 03:37:31 · 4 answers · asked by Anonymous in Engineering

thanks for explaining suction pressure. i wish to make my doubt more clear. i will explain my understanding.... more discharge pressure means more work done by the pump. my q is will the discharge affects suction pressure.. does more suction press means more work done by pump or less work. is high suction pressure is required for more discharge. onother thing.. the pump is intaking the same amount of water that it delivers. so why suction pressure and discharge pressure not the same?? may sound idiotic.. but please explain me from the basics.

2006-07-21 03:36:08 · 7 answers · asked by shahferoz 1 in Engineering

2006-07-21 03:35:39 · 3 answers · asked by indiegurl 1 in Geography

If at the beginning of time--the big bang--the universe created all it was ever going to and the galaxies naturally came together, if only one planet with life came from each of them, what significance would that have?

2006-07-21 03:35:14 · 16 answers · asked by Anonymous in Astronomy & Space

For example, if one person sees red dose another person see a different colour?? Or if one person sees a round ball dose another person see a different shape??......That kind of thing!!

2006-07-21 03:29:40 · 35 answers · asked by JOJO 1 in Other - Science

just curious....

2006-07-21 03:28:02 · 19 answers · asked by Anonymous in Geography

kelvin,ampere,volt,farad,tesla,newton,ohm,coulomb.

2006-07-21 03:26:48 · 7 answers · asked by Anonymous in Physics

"E=mc² (Energy equals mass times the square of the speed of light.) Original statement: If a body gives off the energy L in the form of radiation, its mass diminshes by L/c²." by Albert Einstein

2006-07-21 03:23:40 · 13 answers · asked by Sir Q 1 in Physics

2006-07-21 03:20:16 · 27 answers · asked by ? 2 in Biology

Where did the term "high seas " ie, "he is off on the high seas" and are there bodies of water called the "low seas"

2006-07-21 03:17:36 · 2 answers · asked by loufedalis 7 in Earth Sciences & Geology

2006-07-21 03:13:27 · 13 answers · asked by Anonymous in Physics

2006-07-21 03:12:16 · 9 answers · asked by count alucard 5 in Physics

I bit just right into a strawberry the other day, and noticed a gas exchange between the hollow part and the surrounding air, meaning there was a pressure difference. That got me wondering, what is the gas inside a strawberry? How does it get there? Is it just air from wherever the berry was grown, or is it mostly CO2 because it's a plant?

2006-07-21 03:11:15 · 4 answers · asked by Anonymous in Botany

I found this in one of my friend's away messages.. makes me wonder.

2006-07-21 03:11:13 · 12 answers · asked by humdrum 3 in Zoology

weight

2006-07-21 03:10:49 · 1 answers · asked by Anonymous in Chemistry

2006-07-21 03:09:31 · 5 answers · asked by bobsie_bobsie 2 in Biology

2006-07-21 03:09:10 · 19 answers · asked by lanlinh19872005 1 in Other - Science

2006-07-21 03:08:03 · 1 answers · asked by bobsie_bobsie 2 in Biology

i have seen the word discontiguous in several internetworking books, and yet not inteh dictionary, my co-workers and i need to know before our presentation,thanx

2006-07-21 03:05:03 · 8 answers · asked by tony 1 in Other - Science

Any Entomologists out there? Here's one for ya....This morning I went outside and found the most interesting creature. At first I thought it was a dragonfly, because of four transparent wings-shaped like a dragonfly and buzz quickly like a dragonfly. But the insect has antenae like a butterfly. The legs are short like a dragonfly. The abdomen is narrow. I have never seen any thing like it! Could this be some crazy hybrid? Who can I contact? If anyone knows, let me know!!! I picked it up and put it in a jar with a tuille top so it can breathe. It does not have any dust stuff on it like a butterfly and it did not hurt it. I need answers quick. Let me know....

2006-07-21 03:01:17 · 7 answers · asked by Sherry 2 in Zoology

2006-07-21 02:59:35 · 10 answers · asked by JOE 1 in Earth Sciences & Geology

2006-07-21 02:59:24 · 3 answers · asked by count alucard 5 in Physics

this is related to java

2006-07-21 02:58:51 · 3 answers · asked by jai 2 in Engineering

I am interested with Biology what careers could I choose that involve biology?

2006-07-21 02:58:30 · 8 answers · asked by Anonymous in Biology

2006-07-21 02:52:49 · 4 answers · asked by indiegurl 1 in Geography

would we fallow it cause of a bunch of static electricty or wat

2006-07-21 02:50:51 · 10 answers · asked by Anonymous in Physics

2006-07-21 02:47:18 · 4 answers · asked by Anonymous in Other - Science

i need a simple formula for this type of question.........

3 boys can dig 5 wells in 2 days
how many wells can 2 boys dig in 3 days?
sometimes you can be asked to tell the number of boys or days.
i need a simple and general formula

2006-07-21 02:46:48 · 13 answers · asked by Omar 1 in Mathematics

(i recently went to the singapore science centre and bought this limestone which contained crystal,so i broke it apart and found some shiny crystal like thing inside so i would like to ask if anybody knows what it really is...
pls help me

2006-07-21 02:46:21 · 5 answers · asked by Anonymous in Earth Sciences & Geology

There are stats that are irrefutable in the movie but the Neo Cons will chalk it all up to nonsense as they repeat what Fox News has put out to refute it.

It is so scary to me that folks blanket themselves in ignorance and expouse the exact same response: We have had ice ages and warming periods before. They miss the issue that the Artic ice contains records of temperatures and CO2 levels. We are approaching levels of CO2 never expercienced before. THe polar caps are melting - in our lifetimes - at unprecedented levels.

Would a neo-con be able to watch the Gore movie and then refute the claims or will they only be able to absorb what the major pervert O'Reilly tells them to believe on any given day?

2006-07-21 02:42:31 · 2 answers · asked by Anonymous in Earth Sciences & Geology