Science & Mathematics - 22 October 2007

if 2 really good doctors switched your blood with a bllod like substitue one doctor pumping out blood and the other pumping in.....


would you live

2007-10-22 16:22:12 · 14 answers · asked by davon tremaine foots a.k.a D.T.F 3 in Physics

How are ions formed?

What are examples of biologically important ions... both negitively and positively charged?

2007-10-22 16:20:26 · 1 answers · asked by !Asian_Boi! 1 in Biology

A helicopter is travleing at 40 m/s at a constant altitude of 100 m over a levle feild. If a wheel falls off the helicopter, w/ what speed will it hit the ground?
-40 m/s
-50m/s
or
-60 m/s

2007-10-22 16:19:56 · 4 answers · asked by Anonymous in Physics

no damn clue!

2007-10-22 16:19:53 · 1 answers · asked by Anonymous in Mathematics

2007-10-22 16:19:39 · 3 answers · asked by Anonymous in Weather

2007-10-22 16:18:14 · 1 answers · asked by Kara S 1 in Chemistry

2007-10-22 16:16:54 · 1 answers · asked by Anonymous in Earth Sciences & Geology

I'm a freshman college student, and I'm staying at the dorm with my friend. Strangely, I feel like we're not alone. Arounf midnight, I hear this eerie "tap, tap, tap" in dormitory corridor. Like someone's walking. Sometimes, there's this feeling that someone's in the room with us. There's this chair in our dorm, and my friend and roommate TJ doesn't want to sit in that same exact chair! One time, I got out of bed and looked out the window. I saw this figure of a lonely Spanish girl, watching the waves. She's sobbing. The, she disappeared! The same thing happens every night. She's there, watching the waves with an air of melancholy.

2007-10-22 16:14:34 · 11 answers · asked by Anonymous in Paranormal Phenomena

different question below:

If the magnitude of the vector component equals zero, what is the magnitude of the other component?

2007-10-22 16:09:31 · 1 answers · asked by jalisamarie12 1 in Physics

What is the difference between virtual image created by a converging lens to the one created by a diverging lens?

2007-10-22 16:08:42 · 1 answers · asked by To-the-Stars 4 in Physics

which of the four forces acts over the longest distance?

2007-10-22 16:06:33 · 1 answers · asked by hm 2 in Physics

2007-10-22 16:06:14 · 5 answers · asked by Anonymous in Weather

2007-10-22 16:04:29 · 6 answers · asked by Anonymous in Other - Science

2007-10-22 16:04:24 · 1 answers · asked by mskloraine 1 in Mathematics

How do u factor these two expressions:

5x^2-14x+8

and 3x^2-7x-20?

2007-10-22 16:03:07 · 8 answers · asked by Chipee 1 in Mathematics

I have used p(1), c(1),d(1), etc. to mean p subscript 1, c subscript 1, and etc. Also, c(1)...c(k) and d(1)...d(k) are non-negative integers. And p(1)...p(k) represent different primes.

2007-10-22 16:02:08 · 2 answers · asked by Anonymous in Mathematics

I realize that at present moment, this type of operation may not be speculated as being feasible. There is a great deal of hypothesizing going on that is concerned with the complete recreation of Mars' environment (Terraforming) into an earth-like environmeny, which seems possible. However, the gravity which is currently present on Mars is about 1/3 of the gravity which exists on earth. People who would one day migrate to this terraforming Mars would find themselves in an environment similar to ours, but the gravity would be radically different and they may experience bone/muscle loss. So... any ideas on how to bolster or otherwise modify a planet's gravity field, to make it stronger until it is level with Earth's?

2007-10-22 16:02:08 · 15 answers · asked by ssu.trublu 1 in Astronomy & Space

2007-10-22 15:57:25 · 2 answers · asked by Anonymous in Physics

2007-10-22 15:56:41 · 2 answers · asked by Anonymous in Astronomy & Space

I know one of them is Mammals... i think...

2007-10-22 15:54:42 · 4 answers · asked by ebpm 1 in Biology

-Gene expression remains constant throughout an organism's life span
-Different individuals of the same species express all the same genes
-Gene expression is not influenced by environment
-Different tissues within an organism express different genes
-None of the above

2007-10-22 15:54:12 · 1 answers · asked by Anonymous in Biology

-only DNA has a backbone of sugars and phosphates
-hydrogen bonding is important only in DNA
-no sugar is present in either molecule
-adenine pairs with different bases in DNA and RNA
-thymine pairs with different bases in DNA and RNA

2007-10-22 15:50:14 · 2 answers · asked by Anonymous in Biology

whats the mass percentage of water in sodium carbonate decahydrate

2007-10-22 15:49:53 · 3 answers · asked by Janie 2 in Chemistry

Can energy be released when matter changes> Can it be absorbed> Can a change in matter take place in which energy is neighter released nor absorbed?

2007-10-22 15:47:21 · 2 answers · asked by Anonymous in Chemistry

Liouville's lambda function λ(n) is defined by factoring n into a product of primes n = (p_1)^k_1 + (p_2)^k_2 +...(p_r)^k_r and then setting λ(n) = (-1)^(k_1 + k_2 +...k_r)

The function g(n) is defined as follows):
G(n) = λ(a_1) + λ(a_2) + ... λ(a_r), where a_1 through a_r are the divisors of n.

I noticed that when you compute the value of G(n), it is 1 for perfect squares and -2 for all other values. How do I prove this?

2007-10-22 15:45:56 · 1 answers · asked by gumy23s 1 in Mathematics

KOH + BaCl2 -------------> BaOH2 + KCl

2007-10-22 15:45:29 · 5 answers · asked by HAPPY <3 2 in Chemistry

a) A rectangular parking is to be fenced on three sides leaving the fourth side open to the street. If there is 800 meters of fencing available, determine the dimensions that would produce the maximum area.
b) Two numbers differ by 6. If their product is a minimum, determine these numbers. ( i guessed x and x-6 but i wasn't sure)
Show steps please.

2007-10-22 15:45:20 · 2 answers · asked by Anonymous in Mathematics

1. if you have two vectors, how would you theoretically find the equation of the plane they span (you're not given a point in the plane)

2. if you have two planes that intersect at a line, how do you find the equation of the orthogonal vector from that line to a point?


thanks!!

2007-10-22 15:44:10 · 1 answers · asked by Jo 1 in Mathematics

2007-10-22 15:41:47 · 2 answers · asked by Ashley F 1 in Chemistry

so i have to have th things float at first then sink to the bottom when i squeeze it in water. any ideas?

2007-10-22 15:41:04 · 1 answers · asked by Laura Block 4 in Physics