Science & Mathematics - 26 November 2006

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why is half of the moon dark and is it always dark on the same side?

2006-11-26 10:43:06 · 6 answers · asked by Anonymous in Astronomy & Space

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I need help on this Math Question?

Line segment RS has endpoints R(12,22) and S(52, -12) and is the radius of a circle.

a) If point R is the centre of the circle then determine the other endpoint of the diameter of the circle.

b) Calculate the diameter of the circle to the nearest tenth.

2006-11-26 10:42:33 · 4 answers · asked by astro_dj 2 in Mathematics

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What did scientist used to believe contained the blueprint for life?

DNA was not thought to be the genetic blueprint. Many scientist hypothesized that "blank" contained the genetic code and bluprint of life.

2006-11-26 10:42:24 · 5 answers · asked by JustMe 2 in Biology

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need information on the ocean rock fish the can kill you if stepped on?

I need the scientifice name, and 3 facts about it thankx

2006-11-26 10:41:25 · 2 answers · asked by glossykisses16 1 in Zoology

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Tree on TV that are 4000 years old, it has only been 4416 since the flood, can this be true about trees?

2006-11-26 10:37:24 · 5 answers · asked by jeni 7 in Botany

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What does a Magnitude mean when a earthquake happens?

example 7.6 magnitude earthquake

2006-11-26 10:34:48 · 6 answers · asked by Anonymous in Earth Sciences & Geology

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Help: can you help me come up with a formula for the number of regions?

The "missing" region

Mark a number of points unevenly round a circle and join every point to every other point. How many regions has the circle been divided into? Can you find a formula to predict the number of regions Y given the number of points X?

The diagram alongside shows that there are Y = 8 regions created with X = 4 points. The table below gives some more values which you can check if you like!
Points X 2 3 4 5 6 7
Regions Y 2 4 8 16 31 57
Differences D 2 4 8 15 26

Can you find a (polynomial) function for Y(X) ?

the diagram is within the pdf linked: http://www.itemaths.org.uk/using-ict/graphical-calculators-ks3.pdf

2006-11-26 10:30:44 · 1 answers · asked by Still Waters 2 in Mathematics

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Which of the following is not used as an antiseptic?

Choices are iodophor, chlorhexidine, 3% hydrogen peroxide, Merthiolate, aqueous glutaraldehyde

2006-11-26 10:30:35 · 5 answers · asked by Anonymous in Medicine

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What would the planetary wind system be like if the earth did not rotate ?

Earth science

2006-11-26 10:29:10 · 7 answers · asked by Lilmissmommy 2 in Earth Sciences & Geology

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Fusion. $7 billion dollars for ITER - too little too late?

Fusion has for decades been heralded as the solution to our global energy problems. Its clean, safe and has an enormously abundant fuel supply (so they say). And given the recent ITER annoucement and funding injection, fusion will be with us in........................ 30 years!!!!!!!!!!!

Given Sir Nicholas Stern's LSE presentation on not going green, why are we not throwing everything we have at this problem and cracking this thing in 10 years rather than 30?????

2006-11-26 10:28:40 · 5 answers · asked by Moebious 3 in Physics

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If a freefall thrill ride at an amusement park was as tall as teh empire state building, what will happen to?

What will happen to te people on a thrill ride that has a hill or freefall that is as tall as the Empire State Building?

2006-11-26 10:28:36 · 5 answers · asked by bandmember18 1 in Physics

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Ellipse Problem? Please help.?

Find the equation for the ellipse if it passes through (8,6), centered at the origin, and length of major axis is 32 on the x-axis. Meaning 16 on the positive x-axis and 16 on the negative x-axis.

2006-11-26 10:26:00 · 5 answers · asked by Anonymous in Mathematics

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why sea water cannot be used in boilers?

2006-11-26 10:25:49 · 7 answers · asked by balwinder s 1 in Chemistry

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Do you think the public perception of robots is positive or negative?

The technology for all sorts of robots is rapidly advancing, do you think public perception will help or hinder this?

2006-11-26 10:23:18 · 6 answers · asked by jw 2 in Other - Science

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which elements are used to prepare pure hydrogen?

2006-11-26 10:22:17 · 5 answers · asked by balwinder s 1 in Chemistry

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Is there such a thing as cosmetic vocal surgery?

I've never heard of it, but it seems feasible and marketable. I imagine that more people are dissatisfied with their voices than their visible features.
If such a surgery exists, what's it called?
If it doesn't exist, why not?

2006-11-26 10:18:17 · 3 answers · asked by ? 5 in Medicine

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math question?

can you help me answer this math problem and give me the steps for it to thx
-the value of 92 stamps is $14. if there are only 10-c and 25-c stamps, how many 10-c stamps are there

2006-11-26 10:16:45 · 9 answers · asked by cindy 3 in Mathematics

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Does revenge exist in the animal world?

2006-11-26 10:15:42 · 16 answers · asked by Anonymous in Zoology

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A thermodynamic system undergoes a process in which it's internal energy decreases by 500J?

If at the same time 220 J of work is done on the system, find the energy transformed to or from the system as heat?

I need help.. this question is bugging me.

2006-11-26 10:15:34 · 2 answers · asked by Adam 2 in Physics

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