Science & Mathematics - 17 September 2006

So how much energy is required to lift a 1 lb object in the air?
And how does this relate to a 10 lb, 100 lb, and 1000 lb object?

Like if you were trying to make a flying car... i know sounds weird

2006-09-17 08:05:59 · 6 answers · asked by Anonymous in Physics

Eventually I believe they will have to be made.. maybe not for a long time but eventually YES they will.

So how much energy is required to lift a 1 lb object in the air?
And how does this relate to a 10 lb, 100 lb, and 1000 lb object?

2006-09-17 08:04:07 · 2 answers · asked by Anonymous in Astronomy & Space

Im looking for a population graph of the California red-legged frog from around the early 1900's to the present, although Im pretty sure anything will do. I havent had any luck so far, please help me out.

2006-09-17 08:03:24 · 2 answers · asked by Sean 2 in Biology

2006-09-17 08:03:09 · 11 answers · asked by tommo 2 in Earth Sciences & Geology

A web site where it could be found?? THANK YOU!!

2006-09-17 08:00:36 · 1 answers · asked by Slugbug13 3 in Biology

2006-09-17 07:57:42 · 56 answers · asked by arun bose 1 in Physics

2006-09-17 07:57:27 · 10 answers · asked by Anonymous in Mathematics

I need this for my science fair and it is not allowed to be dangerous and will not hurt animals. It has to help mankind in some way.

2006-09-17 07:56:53 · 2 answers · asked by Anonymous in Other - Science

i've been thinking for the last couple months that i never see a blue sky anymore; i'm around detroit. it's not normal clouds.. just wondering what exactly.

2006-09-17 07:55:23 · 3 answers · asked by honorablepassion 2 in Weather

if it takes2,434 bricks to build one wall of a semi detached house and each brick cost 15p how much does it cost to build a street of 24 semi detached houses?

2006-09-17 07:55:04 · 16 answers · asked by josephine.wrightan@btinternet.co 1 in Mathematics

1.) a golf cart has an acceleration of 0.4 m/s square. what is its velocity after it has covered 10 m starting from rest?

(answer: 2.8 m/s)

how do u get the answer.

2006-09-17 07:52:27 · 14 answers · asked by yom b 1 in Mathematics

I read in my textbook that it was "all the life on Earth". Does this mean plants, animals, humans, bacteria, etc.?

2006-09-17 07:51:03 · 5 answers · asked by FallOutGirl 2 in Earth Sciences & Geology

2006-09-17 07:50:39 · 10 answers · asked by sexiness 1 in Mathematics

....why do they twinkle, and not when you look at them close up?

2006-09-17 07:50:36 · 11 answers · asked by quite contrary 1 in Physics

I'm an artist and am interested in the effect of water based paints poured into pools of turpentine. I use a syring to inject pools of water based colour into pools of turpentine (and vice versa).However the drying process eliminates the beauty of the effect and I would like to use alternatives that would hold the "lava lamp" look...something which doesn't evaporate but which is clear and more dense than water and turps.

2006-09-17 07:48:28 · 5 answers · asked by Martin B 1 in Chemistry

2006-09-17 07:46:51 · 6 answers · asked by Giga 1 in Astronomy & Space

2006-09-17 07:44:05 · 9 answers · asked by sexiness 1 in Mathematics

Do you believe in the Paranormal (PSI related)events?
I'm not talking about television.
Have you ever seen "PSI Factor" TV show? It is still on in Iran.well. I follow it every week and it's the best TV show I have seen ever.all about strange events.my favourite things.But do you think they have actually happened?Some of them are just hard to believe.I have heard of getting older but I haven't ever heard of getting younger untill you are only six! Are there any proofs on any of them?Were really 10 stors of a skyscraper in the U.S disappeared?If so why haven't we heard about them on news?Could such important events be hidden?Why 99% of U.F.Os are just seen in the U.S?Don't tell me because little green aliens have fallen in love with Americans!cos they haven't.because movie makers in Hollywood want it to be that way!(But to be honest I saw one of these strange objects over Iran's sky at dawn and I live in the northern part of Iran right in the cat's head so it couldn't have been a satellite but I could be wrong) I believe in the other world,miracles,strange powers of mind, and lots of other things.But that doesn't mean that I should believe aliens have abducted a man so he could talk to live cells and he could change his figure or a statue is looking for his lost head or the earth was going to be sawallowed by an unknown darkness!Tell me have any of you ever seen or heard of an area in a jungle which can turn you to a 70 year old man within seconds?If it was true then government should have warned people not to go there!It's too stupid.But as I said some of them are quite believable such as seeing ghosts,U.F.Os,U.S.Os,using your mind to do strange things,telepathy and so on. NOT ALL OF THEM.They claim ALL these stories are based on actual case files of O.S.I.R reaserchs and they have actually happened.(O.S.I.R stands for the Office of Sientific Investigation and Research and I don't know if it is in the U.S or in Canada) Could science explain them?Do you believe in them?
Read this part if you don't know what O.S.I.R is otherwise please answer the question.
The Office of Scientific Investigation and Research - the O.S.I.R.- is a private organization that, among its many activities, scientifically explores incidents which might be paranormal in nature. These include such areas as haunting and poltergeist phenomena, possessions, exorcisms, miracles, psi-related phenomena (including psychokinesis, precognition, altered states, near-death experiences and channeling), geophysical mysteries, astral projection, reincarnation and telepathy.
By the way you can find all stories of "PSI Factor" episodes in it's official websie.

2006-09-17 07:43:20 · 5 answers · asked by Anonymous in Other - Science

What Branch of Earth Science does earthquakes belong to?

2006-09-17 07:43:07 · 7 answers · asked by xrentxheadx 1 in Earth Sciences & Geology

I am curious as to why we are finding E.Coli in our vegetables, when it is a bacteria that resides in animals guts, or around natural hot springs? Here is a little definition from Wikipedia:
"Escherichia coli ... usually abbreviated to E. coli, discovered by Theodor Escherich, a German pediatrician and bacteriologist, is one of the main species of bacteria that live in the lower intestines of mammals. They have also been located on the edge of hot springs. They are necessary for the proper digestion of food and are part of the intestinal flora. Its presence in groundwater is a common indicator of fecal contamination."
So if it is a problem with groundwater, are we watering our spinach plants with contaminated water? What are some solutions that we can use to fix this problem?

2006-09-17 07:42:07 · 12 answers · asked by Megs 1 in Biology

2006-09-17 07:40:58 · 8 answers · asked by Jasmine 1 in Mathematics

2006-09-17 07:38:46 · 15 answers · asked by sexiness 1 in Mathematics

2006-09-17 07:36:20 · 5 answers · asked by arun bose 1 in Physics

2006-09-17 07:35:30 · 7 answers · asked by Norberto A 1 in Mathematics

2006-09-17 07:33:53 · 5 answers · asked by anthony r 1 in Chemistry

2006-09-17 07:32:32 · 8 answers · asked by arun bose 1 in Physics

2006-09-17 07:31:15 · 9 answers · asked by Anonymous in Medicine

2006-09-17 07:29:56 · 4 answers · asked by Rockford 7 in Medicine

2006-09-17 07:29:48 · 7 answers · asked by Sue D 1 in Earth Sciences & Geology

x^2-25y^2/5x^2+25y divided by x^2-5xy
I got the answer 1/5x^3

2006-09-17 07:29:30 · 4 answers · asked by Anonymous in Mathematics