Science & Mathematics - 26 November 2006

Thank you!

2006-11-26 15:56:03 · 4 answers · asked by heyy ya 1 in Physics

the system doesnt say anything so im not too sure...

2006-11-26 15:55:50 · 5 answers · asked by Val­­® 3 in Engineering

Well, I'm Korean, and my parents say I have to be VERY becareful because once I loose my blood, I will never regain them back with my own heart. This really freaked me out cause... I don't want to die or anything... (BTW is this true?)

In Korea, it was very rare to get a O- blood type. (about 30 people have them in the whole Korean population - 40 million)

Both my parents are plus O type, and neither my grandparents have O- bloods nor my great grand parents... So how'd I get this O minus blood type, which is so rare for my nationality?

2006-11-26 15:54:20 · 10 answers · asked by gogogo 3 in Biology

what are the errors involved in using the method below in determining the heat capacity or latent heat of substances and state what may be done to reduce these errors.
@= change in temperature
(Ms)(Cs)(@s)= (Mw)(Cw)(@w) + (Mc)(Cc)(@c)

2006-11-26 15:52:03 · 2 answers · asked by Stephanie 1 in Physics

My eyes change colors all the time. They usually start off in the morning blue with a golden-hazel ring in the center that tends to stay there almost all the time. My eyes usually change color three to four times a day, usually keeping the golden-hazel ring in the center, excpet for a few times when they turn solid green or a grey center with a blue outline. I'm not sure why they change colors, and i've tried to do a self study, but mood and surroundings dont seem to effect it, it's just sort of random. Any thoughts?

2006-11-26 15:48:45 · 6 answers · asked by Kevin M 1 in Biology

#1

If f(x)= sqrt(x^3 + 5x +121) * (x^2 +x +11) then, f'(0)=?

Note that the square root does not extend over (x^2 +x +11).
It's the square root of (x^3 + 5x +121) multiplied by (x^2 +x +11).


#2
if y is a differentiable function of x, then the slope of the curve xy^2 -2y + 4y^3 = 6 at the point where y = 1 is what?


#3
Find all open intervals on which the following function is decreasing:
f(x) = x / (x^2 + x -2)


It's crucial that I see your work (how you got the answer).
Thanks a million. You people are awsome.

2006-11-26 15:47:07 · 3 answers · asked by Mandali 1 in Mathematics

the chances of us finding somthing are so small becuase our technology isnt good enough. shoul we even be searching?

2006-11-26 15:45:16 · 10 answers · asked by Chase S 2 in Astronomy & Space

I've heard that racoons will eat almost anything. Is this true? Do they have any tastebuds?

2006-11-26 15:43:40 · 5 answers · asked by jdimmitt22 2 in Zoology

2006-11-26 15:43:33 · 5 answers · asked by Anonymous in Mathematics

The ball's kinetic energy at A:
1.4J
The ball's speed at B:
4.31m/s

Determine the total work done on the ball as it moves from A to B.

2006-11-26 15:41:19 · 3 answers · asked by Fanjame 1 in Physics

a. A male black Labrador retriever of genotype BbCc is mated with a female black Labrador retriever of genotype BbCc. what colors can thier offspring be?
b. In what % do you expect each of them to occur?

I have no idea how to do this!

2006-11-26 15:40:35 · 3 answers · asked by pReCioUs_mE 1 in Biology

[[pls explain step by step of how you did it or just say the answer]]
aunt alice gave each of her nieces a number of silver dollars equal to their age.the three sisters agreed to redistribute the money. the youngest would split half of her silver dollars evenly with the two other sisters. the middle sister would then give each of the other two four silver dollars. finally, the oldest was to split half of all her dollars equally among the two younger siblings. after exchanging the money, each girl had sixteen dollars.

2006-11-26 15:39:05 · 8 answers · asked by Orange? 4 in Mathematics

(x^4+x^3-2x^2-3x-1)/(x-2)

2006-11-26 15:36:46 · 1 answers · asked by jere 1 in Mathematics

2006-11-26 15:35:54 · 1 answers · asked by ancy v 1 in Engineering

What is the relationship between the moon's surface gravity, lack of an atmosphere, and temperature range?

also, why is the moon's surface for heavily cratered than Earth's surface?

2006-11-26 15:35:04 · 6 answers · asked by Courtney 3 in Astronomy & Space

2006-11-26 15:33:43 · 4 answers · asked by jere 1 in Mathematics

3/x = x + 5/2 ( the x + 5 is all over 2)

2006-11-26 15:33:41 · 4 answers · asked by tigertank702 1 in Mathematics

Tarzan (m = 85 kg) tries to cross a river by swinging from a 10-m-long vine. His speed at the bottom of the swing (as he just clears the water) is 8.0 m/s. Tarzan does not know that the vine has a breaking strength of 1000 N. Does he make it safely across the river? Justify your answer.

2006-11-26 15:30:03 · 3 answers · asked by Kitana 2 in Earth Sciences & Geology

2006-11-26 15:28:28 · 5 answers · asked by Meisha 1 in Botany

2006-11-26 15:27:20 · 5 answers · asked by geniusflightnurse 4 in Medicine

A:cleavage
B:hardness
C:streak
D:fracture

2006-11-26 15:26:23 · 6 answers · asked by Angel E 2 in Earth Sciences & Geology

2006-11-26 15:25:09 · 5 answers · asked by Anonymous in Astronomy & Space

1) Is refraction of light a reversible process?

2) What happens to the wavelength of light as it passes from a more dense to a less dense medium?

3) If the angle of incidence from glass to air exceed the critical angle, what will happen?

4) How might the following professionals make use of Snell's Law?
a) Gemologist
b) food scientist
c) Environmental Protection Agency (EPA) Investigator

5) Every day life application for general concepts of refraction of light??

Much thanks! Just answer as many as you can :]

2006-11-26 15:24:23 · 3 answers · asked by heyy ya 1 in Physics

LiOH + CO2 → Li2CO3 + H2O







If the percent yield of the above reaction is found to be 91.72 %, how many grams of H2O are produced from the complete reaction of 119.75 g of LiOH ?

2006-11-26 15:24:12 · 3 answers · asked by Christie 1 in Chemistry

Do you think is it better to learn mathematics beyond the necessary subjects of your job? or just enough to finish your job?

What are benefits learning Mathematics? in your opinion? or experienced? or based on proved researched?

2006-11-26 15:22:59 · 19 answers · asked by Doo.ri 3 in Mathematics

40400/324800

2006-11-26 15:22:56 · 7 answers · asked by ...... 2 in Mathematics

8t^2 - 32a

2006-11-26 15:22:35 · 7 answers · asked by tigertank702 1 in Mathematics

For the reaction LiOH +CO2→Li2CO3+H2O how many moles of Li2CO3 are produced from the complete reaction of 5.40 moles of LiOH

2006-11-26 15:22:26 · 2 answers · asked by Demaurey D 1 in Chemistry

2006-11-26 15:21:27 · 8 answers · asked by Eric 2 in Mathematics

2006-11-26 15:20:23 · 13 answers · asked by jagadeesh_kumarsh 1 in Weather