Science & Mathematics - 26 January 2007

Is there a falling star?
I've never seen it...

2007-01-26 20:23:26 · 5 answers · asked by Budex M 1 in Astronomy & Space

2007-01-26 20:22:54 · 4 answers · asked by fercucci 1 in Mathematics

We know friction occurs beetween two solid objects but were not sure about a kite and the surrounding air, but weve got a sneaking feeling it does, like aerodynamics or something. Sensible answers please as this is for my 8 year old sons homework and he will be reading this, thanks

2007-01-26 20:19:50 · 15 answers · asked by weedraker 2 in Physics

Teen Challenge (A drug and alcohol residential treatment program) conducted an "Alumni Survey" to determine how successful their program was a treating drug addiction. They randomly selected 50 Alumni and mailed them a survey. 25 alumni responded with a completed survey. From this Teen Challenge concluded that their success rate at treating alcohol and drug addiction is 67%. Are there any problems with this conclusion?

2007-01-26 20:19:05 · 4 answers · asked by wahhaj93 1 in Mathematics

2007-01-26 20:18:58 · 8 answers · asked by Nadare 2 in Mathematics

2007-01-26 20:16:37 · 7 answers · asked by Anonymous in Mathematics

2007-01-26 20:16:28 · 7 answers · asked by Nadare 2 in Mathematics

2007-01-26 20:15:12 · 9 answers · asked by Anonymous in Mathematics

2007-01-26 20:14:13 · 3 answers · asked by Nadare 2 in Mathematics

2007-01-26 20:11:04 · 18 answers · asked by ? 6 in Geography

what is the population of Spain

2007-01-26 20:10:02 · 15 answers · asked by Nicklt w 1 in Geography

2007-01-26 20:05:31 · 17 answers · asked by rose1 5 in Weather

I am 17 and I sometimes just KNOW things. Usually when I'm on the phone with someone I will get a feeling that they're doing something or have a feeling they're wearing this and when i ask them i am usually right.

I remember being on the phone with my friend and I told her to stop looking at the speaker like that and she was actually looking at her stereo speaker wondering if it had dust on it.

I'm usually good at knowing what colors they're wearing, i'm right 99% of the time. Today I asked this one person I was on the phone with if he was wearing black shorts and a white shirt, he wasn't, he was wearing black sweats and a white tee. I asked if his 2 year old brother had on blue and he did. Things like this always happen.

Does anyone else have this THING? Why do i do this? Please do not ask me about what you're wearing but someone that will answer has on blue today.

2007-01-26 20:04:39 · 12 answers · asked by uglyvanity 3 in Paranormal Phenomena

I need to find a way to control the speed of an electric motor over a wide rpm range so that it is what I want it to be, per it's input w/o feedback. This would be a small motor, like an RC car type. I want to write a number to a DAC and either use a Voltage source or a Current source as the controll, but need to be able to lock the speed over a wide rpm range with a lightly varying load, ie: load will vary with rpm, pretty linearly, and be light in comparison with the torque capability of the motor, and needs to work with many motors ie: for production in a product. Any help? thanks,, C. Speed is going to be up near 7000 rpm at the top end, aroud 200 at the bottom.

2007-01-26 20:01:53 · 3 answers · asked by Anonymous in Engineering

A lion can eat the sheep for two hours. A wolf can eat the sheep for three hours and a dog can eat the sheep for five hours. For how many hours they can eat together the sheep??

2007-01-26 19:59:27 · 3 answers · asked by Indianidol9 1 in Zoology

2007-01-26 19:58:39 · 9 answers · asked by poo 1 in Medicine

Geonium is a man made atom, created at lequid helium temperature in ultrahigh vaccum for an individual electron in magnatic and electric trapping feilds. For this atom the electron gyromagnatic ratio g=2000 000 000110(60) has been measured im microwave spectroscopy experiments after substraction of quantum electrodynamics shifts. The g-g Dirac=11x10*-11 excess over the value g Dirac=2 for the theoretical Dirac point electron suggest for the electron of nature a corrosponding excess radius Re-RDirac ovar the Dirac Radius R dirac=0 and spatial Structure. This is well Known Ok. A near Dirac particles an electron radius Re~=
10*-20 centemeter had been extraplotted. In the Big Bang Cosmology, a close to zero or zero mass particle and antiparticle is higly required as per Fremi Yang model, which indicate nothing state (zero mass) that resulted a spontanoius quantum jump in QED and actually initiated the Big Bang. and the particle antiparticle were in Spin[ Dirac point particles]. So far we Know Quark - antiquark particles as most elementary particles. Some are of view as Nutrinos particles. Quarks has at finest level has colour as energy. In 1974 Abdul Salam- A Ex Student from Calcutta university, Citizen of Pakistan by Birth, Nobel Lauratee in Physics & also others pictured the electron and found a particle on the level of quark as composed of three subquarks each 10*10 times havier than electron in Gev as the proton is composed of three spin 1/2 particles.
Is it possible to have a sub sub quarks or Sub2 quarks particles all tightly bound in the nucleon?- This particles must be the Sub X qurks, smaller & smaller, less & less imperfect near Dirac particles held together by new stronger & stronger froces and with ever increasing mass in Gev- Probably in the bigining moment (zero time) of our universe the Big Bang in one spontanious quantum jump in an individual Ba+ ion, in which metastable state decayed in to finally nucleon- anti nucleon pair. Fremi Yang idea still demands zero total relativistic energy or mass of bound pair

2007-01-26 19:57:55 · 4 answers · asked by Prof. Pranab Bhattacharya 2 in Physics

2007-01-26 19:51:56 · 9 answers · asked by windbag 2 in Weather

He disagrees but isn't specific-so he's got every county apart from Essex in the bet-thinks he's crafty-but I think he's wrong!!
Any Geography teachers on to prove him wrong?

2007-01-26 19:49:00 · 7 answers · asked by Anonymous in Geography

Cu + H NO3 produces Cu (NO3)2 + H2O + NO

2007-01-26 19:39:49 · 4 answers · asked by Inquirer 2 in Chemistry

I know it is water.

2007-01-26 19:38:11 · 4 answers · asked by Anonymous in Chemistry

2007-01-26 19:37:15 · 1 answers · asked by santosh v 1 in Engineering

2007-01-26 19:37:14 · 11 answers · asked by Anonymous in Geography

2007-01-26 19:30:31 · 1 answers · asked by Gregory T 1 in Botany

2007-01-26 19:29:12 · 4 answers · asked by m.t.a. 1 in Botany

2007-01-26 19:28:24 · 5 answers · asked by clergy 1 in Physics

2007-01-26 19:24:42 · 2 answers · asked by Hattan 2 in Earth Sciences & Geology

How are the lights and appliances in your home wired? Draw a sketch of your hypothetical circuitry wiring in your home.
Explain.

2007-01-26 19:23:59 · 8 answers · asked by kafka 1 in Physics

i am very curious to know .. what is the reason behind the origin of the symbol "+" for medicines that is used all over the world and unique among various languages.. from where it came into picture and how it is related for medicines. who started this... any history behind this symbol" + " .. especially " a Red Addition Mark "

2007-01-26 19:16:47 · 3 answers · asked by sundarsosweet 1 in Medicine

i treated benzoic acid and acetic acid in the presence of MnO2.
a white product of needle like crystals having mp 112--115 degree centigrad.what will be this product

2007-01-26 19:14:12 · 1 answers · asked by Anonymous in Chemistry