Science & Mathematics - 14 December 2006

2006-12-14 09:16:21 · 6 answers · asked by brighteyes 1 in Earth Sciences & Geology

Since today seems to be the day for asking about extraterrestrial life, I thought I'd see what everyone thought about the Drake Equation. Basically this equation allows us to predict how many "intelligent" and communicative species there are in space.
it is :

N x R* x Fp x Ne x Fl x Fi x Fc x L.

where N is the number of civilizations in our galaxy able to communicate

R* is the rate of star formation in our galaxy
Fp is the fraction of those stars with planets
Ne is average number of planets per system can support life
Fl is the fraction of the above that actually go on to develop life
Fi is the fraction of the above that actually go on to develop intelligent life
Fc is the fraction of the above that are willing and able to communicate
L is the expected lifetime of such a civilization.

website: http://en.wikipedia.org/wiki/Drake_equation

Check it out , plug in your own numbers and tell me what you think is the right answer!!!

2006-12-14 09:15:14 · 6 answers · asked by ~XenoFluX 3 in Astronomy & Space

pleez help factor!
6x(squared)-20x-16
any ideas?

2006-12-14 09:15:12 · 7 answers · asked by Anonymous in Mathematics

I need to know why stats are staying that anesthesiologist make more than internal medicine doctors? Are Anesthesiologist doctors themselves with extra years in pain relief? Whats up? and if you could be a doctor who specializes in anesthesiology? PLEASE HELP!

2006-12-14 09:14:09 · 9 answers · asked by B2J 1 in Medicine

please dont lie

2006-12-14 09:13:46 · 6 answers · asked by .. 1 in Chemistry

the new Molarity?

2006-12-14 09:13:18 · 4 answers · asked by redhotcutiegirl 1 in Chemistry

Answer the following question and explain your reasoning..

A network of fine capillaries connects the arteries and the veins. The blood flows from the heart through large arteries, which subdivide and deliver blood to the capillary system. Each capillary is very small, about 10-6 m in radius, but there are so many of them that the total cross-section area through which the blood passes is about 0.2 m2 for the entire capillary system. This total area for the capillaries is greater than the cross-
section of a single vessel (such as the aorta) through which all blood flows. The average speed the blood moves through a capillary is

a) faster than through the aorta.
b) slower than through the aorta.
c) the same speed as through the aorta.
c) any of these, depending upon the length of the aorta.
d) none of these

2006-12-14 09:13:13 · 4 answers · asked by medman 1 in Medicine

the height, width, and length of a rectangular prism are in the ratio 1:2:4. if the surface area of the prism is 17,500cm^2, write an equation to model the problem and find the dimensions (height, width, and length) of the prism.

if you know the answer, plz tell me how you got it..like the formulas and stuff. thx!

2006-12-14 09:12:30 · 2 answers · asked by meow 2 in Mathematics

2006-12-14 09:12:22 · 2 answers · asked by J 1 in Engineering

2006-12-14 09:11:31 · 11 answers · asked by Phil s 1 in Mathematics

Theres someways to convert pounds,height,width,length into metrics help is there some kinda metric scale online?

2006-12-14 09:10:42 · 5 answers · asked by Anonymous in Physics

2006-12-14 09:09:48 · 15 answers · asked by MelainePinkfluff 1 in Zoology

2006-12-14 09:09:40 · 8 answers · asked by Harold T 1 in Chemistry

2006-12-14 09:08:51 · 6 answers · asked by Anonymous in Geography

state any assumption you make for your calculation.

2006-12-14 09:07:54 · 2 answers · asked by Anonymous in Mathematics

LDL density is anywhere from 1.01 to 1.05 g/cm^3, HDL density is anywhere from 1.08 g/cm^3 to 1.21 g/cm^3, so why is body fat usually listed as somewhere between .90 and .92 g/cm^3?

2006-12-14 09:07:54 · 1 answers · asked by sonnetgirl16 1 in Biology

2006-12-14 09:07:14 · 5 answers · asked by Anonymous in Geography

What are the rules before and during the MRI, I mean what should and shouldn't you do, seriously and honestly.

2006-12-14 09:06:02 · 3 answers · asked by Anonymous in Medicine

2006-12-14 09:05:45 · 10 answers · asked by cupcake 1 in Zoology

An atom of carbon enters a plant as CO2. A cow eats the plant. Explain IN DETAIL what happens to the carbon atom from the time it enters the plant to the time it leaves the cow. Include both photosynthesis and cellular respiration in your explanation.

2006-12-14 09:03:48 · 1 answers · asked by EJ 1 in Chemistry

or does the pressure cause the heat

2006-12-14 09:01:44 · 11 answers · asked by Harold T 1 in Chemistry

need to know final exams coming up soon :(

2006-12-14 08:59:42 · 9 answers · asked by smellykellygirl001 1 in Chemistry

Im not talking about human physical features!!!! Like, mountains, weather, global warming, etc!!!!!

2006-12-14 08:58:17 · 8 answers · asked by theresa_xo92 2 in Astronomy & Space

whats the reaction type?
whats the molecular representation?

2006-12-14 08:58:06 · 3 answers · asked by cece 1 in Chemistry

2006-12-14 08:57:34 · 4 answers · asked by Anonymous in Earth Sciences & Geology

This is a Space Elevator that is a cargo that takes people and objects from earth to space.

2006-12-14 08:57:17 · 3 answers · asked by Anonymous in Astronomy & Space

2006-12-14 08:54:53 · 8 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-14 08:53:52 · 6 answers · asked by theresa_xo92 2 in Astronomy & Space

2006-12-14 08:50:12 · 18 answers · asked by Simon 3 in Astronomy & Space

please work the equation:


5x+10=11x-2

2006-12-14 08:50:06 · 8 answers · asked by Captain705 1 in Mathematics