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Science & Mathematics - 27 January 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

Assuming it was possible to reach the speed of light, how long would it take to accelerate to 186,000 miles per second at the rate of acceleration that a human being could withstand for that period of time?

2007-01-27 07:06:15 · 6 answers · asked by itsabluesthing 1 in Physics

what is flow pressure? please hurry. . .i have a huge test this monday!!

2007-01-27 07:03:09 · 3 answers · asked by Anonymous in Engineering

2x+4y=8
(0, ), ( ,0), (3, ), ( , 7)

2007-01-27 07:03:09 · 5 answers · asked by Julie 1 in Mathematics

What are the real beginnings of evolution? That is, when did evolution start taking place? Should I also include the Big Bang Theory?

2007-01-27 07:02:33 · 6 answers · asked by sparklycrayons 1 in Biology

strange sensations

2007-01-27 07:01:54 · 2 answers · asked by Anonymous in Chemistry

..Does the heifer or young cow need to give births to young ones before being able to give milk?

2007-01-27 07:00:22 · 6 answers · asked by robin 3 in Zoology

2007-01-27 06:59:08 · 5 answers · asked by major 2 in Biology

3a^3 b^4 c^0 / (all to the ^ -4)
2a^4 b^5 c^6

you have to simplify the equation
please explain how to do it don't just give me an answer.
I need to know this for my final!

2007-01-27 06:57:25 · 3 answers · asked by pepsi 2 in Mathematics

2007-01-27 06:57:04 · 3 answers · asked by Anonymous in Mathematics

Thanx

2007-01-27 06:54:59 · 8 answers · asked by Anonymous in Mathematics

Find the value of x please.

I tried to solve this by using the fact cosec x is 1/sin x

therefore 1/sin x - sin = 2

The brining two to the otherside and multiplying through by sin x

getting 1-sin (squared) x -2.

I got stuck from here on!!

2007-01-27 06:54:30 · 7 answers · asked by Emma C 4 in Mathematics

How much is 8kilometers? 1kilometer? how long is it in feet?

2007-01-27 06:53:54 · 7 answers · asked by Anonymous in Geography

3.09474 KJ of energy is gained/lost by 236.0 ml of water containing 4.08 g of dissolved MgSO4, according to the equation,

MgSO4 → Mg2+(aq) + SO42−(aq).

The change in enthalpy must be −91.3 kJ/mol. What is the change in temperature ( oC ) for the above process assuming no heat is lost or gained by the surroundings ?

2007-01-27 06:51:31 · 1 answers · asked by MARK 2 in Chemistry

I heard from someone that a glass bottle or glass in general is still considered a liquid but is moving so slowly that it feels solid, is this true at all?

2007-01-27 06:51:03 · 6 answers · asked by Anonymous in Chemistry

how would solar storms harm an astronaut in space? and how would solar storms harm us on earth?

how can we protect ourselves from it?

2007-01-27 06:50:11 · 3 answers · asked by urbanvigilante 3 in Astronomy & Space

2007-01-27 06:49:56 · 2 answers · asked by anthony w 1 in Biology

eg. if i want to know what the graph of x^2.5 looks like.

2007-01-27 06:43:33 · 2 answers · asked by Anonymous in Mathematics

I need examples to understand this law please.

2007-01-27 06:41:39 · 6 answers · asked by moira77 4 in Physics

I mean like if you got really constipated and were trying to "go" could you push your intestines out by accident? I've read about kids getting them sucked out by pool drains so I know it's possible for them to come out there...

2007-01-27 06:40:19 · 5 answers · asked by shadow of a girl 1 in Medicine

2007-01-27 06:39:44 · 7 answers · asked by goring 6 in Astronomy & Space

what is emboryanic stem \cell
what does is the difference between emboryanic and adult cells
what does pluripotent mean
what does totipotent mean
according to scientist which type of stem cell is more useful
where is stem cells found
what is embryo
what is blastocys
what are icm cell?
what happens to the embryo once the stem cells are removed
what are some possible potential uses for stem cless
why are some people opposed to stem cell research
where would stem cells for research come from
what is intro fertillization
what happens to the left over embryos after couple has succesfully had children
what are other sources of stemm cell
are they as useful as embryonic stem cells
what ethical question did president bush have to consider before making his desicion
what is the position of the Senator Hatch on stem cell research
according to pres bush, how many stem cell lines exist?

2007-01-27 06:39:02 · 3 answers · asked by major 2 in Biology

2007-01-27 06:37:48 · 31 answers · asked by Anonymous in Astronomy & Space

2007-01-27 06:36:16 · 7 answers · asked by Anonymous in Zoology

A 500 mg of arabinose is rehydrated with 4 ml of water.
Then all of the arabinose is added to 150 ml of another media.
I thought the answer was 500 mg/(150 ml + 4ml)=3.25 mg/ml
My teacher says the answer is 125mg/150ml= .833 mg/m which can only be true if 1 ml of the original solution was to the added to 149 ml of media?

2007-01-27 06:33:25 · 2 answers · asked by Anonymous in Chemistry

2007-01-27 06:32:20 · 6 answers · asked by aleeza l 1 in Mathematics

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