Science & Mathematics - 22 November 2007

if we are travelling at the speed of light, and we shine a torch ahead of us, will we be able to see the light??
plz give reason!

2007-11-22 23:57:18 · 26 answers · asked by addy 1 in Physics

2007-11-22 23:54:15 · 4 answers · asked by A 2 in Biology

why is it, when you cut a lenth of paper half the size of the piece you just cut its half the size of the piece you are about to cut?

2007-11-22 23:45:40 · 6 answers · asked by Anonymous in Engineering

2007-11-22 23:41:37 · 4 answers · asked by Alex N 3 in Geography

(I remember reading something of one soon, but i cant remember when and where.)

2007-11-22 23:29:41 · 9 answers · asked by Yuri K 2 in Astronomy & Space

And is antenna size one of such factors?
Thanks in advance.

2007-11-22 23:28:09 · 4 answers · asked by Soong 1 in Astronomy & Space

When trying to imagine the universe, infinity is illogical but if there is no universe then infinity becomes logical, and were it not for probes that will reach out to the edge of the universe, we could easily say that what we perceive is not real, for after a super novo there will be no record that life ever existed. It could be construed as just a dream? but we know we are experiencing reality.

2007-11-22 23:21:56 · 8 answers · asked by Anonymous in Astronomy & Space

which one was 1st created???



CHICKEN or EGG????

2007-11-22 23:20:37 · 16 answers · asked by Jerick E 1 in Astronomy & Space

i don't know, want to know

2007-11-22 23:18:27 · 12 answers · asked by cya 1 in Other - Alternative

I m going for a computer course but my family wants me to be a doctor.

2007-11-22 23:11:02 · 11 answers · asked by THE GENTELMAN 1 in Medicine

My math teacher is like this. He always arrives in the classroom a few minuts before class and kind of "hangs out" with the students and talks to them about random stuff. During break and after class he will also talk if anybody wants to talk, about maths or anything else. He usually starts a lesson by writing a headline on the board, describing what we've been working on, then invites the class to tell him something about the headline. He sums up what people have said and then points to a problem that we can't solve or a situation we haven't considered. Proofs for all theorems are worked through, allowing any and all questions during the proof and always answering them fairly. He will allow the class to take the proof a different way than the textbook if he can see that the proof will work using a different approach. He always asks us to think about the possible next step, and asks us to consider the proof as a whole. Continued in "details"...

2007-11-22 23:05:31 · 10 answers · asked by Todd 1 in Mathematics

ok i have just got my card reader from barclays, and after playing with it, I think it must work by useing certain numbers stored on your chip and applying them to a function to give a number, and each sucesive time the number increases so i assume it must have a internal clock which alows the number to be diffrent every time, but can any of you smart boffins out there work out the maths, just so i dont have to carry the bloody thing arround with me every time i want to log on, I mean i can just store a series of pre worked out numbers but i guess that defeats the point!

2007-11-22 22:58:51 · 3 answers · asked by Mark R 2 in Mathematics

I am really confused about binary numbers, could someone help me with this question please. If a binary number needs to represent 16 different values, how long must the number be in bits ?

2007-11-22 22:56:55 · 3 answers · asked by Anonymous in Mathematics

can zinc chloride or zinc sulphate used as electrolyte in the voltaic cell in order to determine the potential difference between two different metal that act as electrode......the electrode used is cooper and zinc?????

2007-11-22 22:52:39 · 1 answers · asked by Daireen 2 in Chemistry

Ok...if you at the beach and you dig a hole..how far can it go? Like how deep untill you can't dig anymore..thought it would be interesting to know..thanx!

2007-11-22 22:50:06 · 2 answers · asked by minx7♪♫ 3 in Earth Sciences & Geology

I'm sorry by this English of Tarzã

A Brasilian

2007-11-22 22:48:27 · 1 answers · asked by Fred 2 in Earth Sciences & Geology

ghost belivers ...can i know your opinion please?

2007-11-22 22:38:44 · 12 answers · asked by cold kid 2 in Paranormal Phenomena

What is your opinion on global warming, why, and how/what is your soucre.

2007-11-22 22:30:47 · 6 answers · asked by Albert P 1 in Earth Sciences & Geology

2007-11-22 21:57:59 · 10 answers · asked by Rowan M 2 in Zoology

2007-11-22 21:57:50 · 7 answers · asked by s 1 in Earth Sciences & Geology

problem....

A chemist burns 0.8650g of graphite (a form of carbon) in a new bomb calorimeter, COsub2 forms. If 393.5 kJ of heat is released per mole of graphite and T increases 2.613K, what is the heat capacity of the bomb calorimeter....

please give a solution...
thank you....

2007-11-22 21:57:19 · 1 answers · asked by bench 1 in Chemistry

2007-11-22 21:54:00 · 5 answers · asked by s 1 in Earth Sciences & Geology

2007-11-22 21:43:28 · 30 answers · asked by Anonymous in Astronomy & Space

2007-11-22 21:41:30 · 14 answers · asked by Anonymous in Astronomy & Space

[yes no] Is Fe2+(aq) capable of reducing Sn2+(aq) to Sn metal?
[ yes no] Is Cr3+(aq) capable of oxidizing Fe2+(aq)?
[yes no] Is Fe2+(aq) capable of reducing Cr3+(aq) to Cr2+(aq)?
[yes no] Is Cr metal capable of reducing Fe2+(aq)?
[yes no] Is Ni2+(aq) capable of oxidizing H2(g)?
[yes no] Is H2(g) capable of reducing Ag+(aq)?

2007-11-22 21:41:14 · 1 answers · asked by estranged 1 in Chemistry

what is the temp of the core of the earth?

2007-11-22 21:22:14 · 5 answers · asked by Prashaanth R 2 in Earth Sciences & Geology

Imagine if earth, was a black dwarf in its life cycle, then maybe might give us a formula after all the all the processes through yellow,red,white,black, and finally turning into a earth like object

Well far stretch out (and fictional), but after all those processes, what if then the result turned out to be some sort of entity element/particle so advanced and complex,it had self awareness of sorts, and on a black dwarf object these self aware element/particles, had to find a way using all the resources available,

To evolutionise into a being that the environmental boundaries allow and are available, could these super complex, self aware element/particles be what we call 'life'.

Put these both fictional and fantastic ideas together, you got one of the stages of black dwarf, that has a young sun next to it, and a theoretical fiction idea of what life could be, and what we are all a part of, as the say we are all made of stars ;)

2007-11-22 21:17:19 · 9 answers · asked by H 3 in Astronomy & Space

2007-11-22 21:13:57 · 12 answers · asked by gie 1 in Astronomy & Space

it says in the holy quran there is people that live on diff planets

2007-11-22 21:09:23 · 15 answers · asked by Anonymous in Astronomy & Space

Say the bomb vessel is meant to be charged to 30 bar and you charge it to 20 bar with pure oxygen, will this affect the calibration of the bomb vessel? (Will your result still be valid assuming the sample does burn up completely.)

2007-11-22 21:00:12 · 1 answers · asked by Anonymous in Chemistry