Science & Mathematics - 8 January 2007

I'm not asking about visibility from earth, just the number of stars in the galaxy visible to us or not.

2007-01-08 14:33:45 · 12 answers · asked by Tod 2 in Astronomy & Space

i was wondering. i was watching a movie where this girl did. and how many do you have to take?

2007-01-08 14:33:41 · 7 answers · asked by ForgeryOfRomance 1 in Medicine

4y^2 +12xy+3x^2-2x+5=0. Find 2 algebraic functions that are determined by this equation. (ie, Use the quadratic formula to solve for y in terms of x).

2007-01-08 14:33:31 · 2 answers · asked by clock 2 in Mathematics

Adult and not pregnant.

2007-01-08 14:32:10 · 8 answers · asked by J. Micro. 2 in Biology

Do they just use the side of the solar plane which Earth uses as North and then adopt that based on the planets inclination? And how does this work for Pluto that is not on the solar plane? So how did they determine Mars North and South poll positions.

2007-01-08 14:31:28 · 5 answers · asked by Richard R 1 in Astronomy & Space

I have this thing when I get light headed with dead things... (I know, I'm sensitive) how do I MENTALLY prepare for dissecting a dead frog?

2007-01-08 14:31:24 · 8 answers · asked by Sarah . 1 in Biology

This is about the tests for differentiating aldehydes or ketones. Thanks in advance!

2007-01-08 14:30:34 · 2 answers · asked by thomasian 2 in Chemistry

2007-01-08 14:30:27 · 6 answers · asked by Joe Kim 2 in Biology

something like tron or the matrix

2007-01-08 14:30:18 · 7 answers · asked by ? 4 in Other - Science

2007-01-08 14:30:11 · 14 answers · asked by H W 1 in Geography

why does a hurricane need moist air, warm ocean water, converging equatorial winds, and must be at least 300 miles from the equator?
If you only know 1 or 2 things plz still answer, anything will help now.

2007-01-08 14:29:17 · 6 answers · asked by Candy!!!!!!!!! 4 in Weather

The x's kinda threw me off.

2007-01-08 14:29:10 · 4 answers · asked by Tiffany 3 in Mathematics

your own personal feeling on the season fall, what does it represent to you in colors, is this the one of the best season for you?

2007-01-08 14:28:51 · 4 answers · asked by CADIZDC 1 in Weather

:]
please.
explain your answer.

2007-01-08 14:27:57 · 4 answers · asked by southern_hillbilly_babe06 1 in Earth Sciences & Geology

I understand that a rocket releases gasses that propel it forward this makes sense where there is an atmosphere. In the vacuum of space there is nothing for the gasses to push against??

2007-01-08 14:26:27 · 9 answers · asked by electricman2170 3 in Physics

Find the inverse of each quadratic function.

y = 4 - X^2 +3X

AND

y = x + 2x^2 -1

Please explain to me how you completed it, so I can get a clearer understanding.
THANKS!

2007-01-08 14:26:03 · 3 answers · asked by smileyface(= 1 in Mathematics

2007-01-08 14:25:42 · 5 answers · asked by Alex 2 in Weather

Astrophysicist Stephen Hawking has warned that the survival of the human race depends on its ability to find new homes elsewhere in the universe because there's an increasing risk that a disaster will destroy Earth. Where do you think we should go?, and how, if just to bring six or seven people on a spacecraft to the space station takes months, years and millions of dollars and sometimes fail.

2007-01-08 14:23:40 · 9 answers · asked by Anonymous in Astronomy & Space

already knowing by definition a prime number is any number greater than 1 with exactly 2 factors, 1 and itself, and taking into account that 1 is a unit, 2 is a prime, and 4 is a composite all by definition

2007-01-08 14:23:22 · 5 answers · asked by j b 2 in Mathematics

I do not think that this procedure is one that would work. I am not Christian or anything by that matter but i do believe there is more to life than having blood running through your body. I really think they want your money.

2007-01-08 14:23:06 · 4 answers · asked by necro 3 in Chemistry

I'm doing observations for an experiment and would like to know what you would see if you made calcium hydroxide a saturated solution and then heated it up and made it saturated again.

2007-01-08 14:22:57 · 1 answers · asked by untilyoucamealong04 3 in Chemistry

Please!!!!!!!!!!!

2007-01-08 14:22:55 · 4 answers · asked by Anonymous in Medicine

[A] Mg-O
[B] C-O
[C] O-O
[D] Si-O
[E] N-O

2007-01-08 14:20:45 · 2 answers · asked by Stephanie 2 in Chemistry

2007-01-08 14:20:41 · 12 answers · asked by sweetsimplicitx 1 in Botany

I'm not sure what I took, but I had to take one during a sleep study at a hospital. Then, I had these weird sensations, where I saw purple stuff floating around me, and felt like the room was getting smaller? Is this normal?

2007-01-08 14:18:25 · 5 answers · asked by Anonymous in Medicine

1) A force of 60 N is applied to a 4 kg mass at rest for 15 sec.
A) What is the acceleration of the object?
B) What is the Speed of the object at the end of the 15 seconds?

2) A 50 kg object is on a horizontal surface that has a µ = 0.25 and is traveling at a constant velocity.
A) What is the weight of the object?
B) What is the normal force acting on the object?
C) What is the force of friction acting on the object?
D) What is the net force on the object?

3) A 350 kg crate is pulled across the floor by a rope. The force on the rope is 500N. The crate is moving at a constant velocity of 2.5 m/s.
A) What is the force of friction acting on the object?
B) What is the weight of the object?
C) What is the coefficient of frictions (µ) between the crate and the floor?

4) A bullet is fired horizontally from a window 30m above the ground at 250 m/s.
A) How long will the bullet take to reach the ground?
B) How far does the buller travel horizontally before it hits the ground?

2007-01-08 14:18:11 · 6 answers · asked by Dan 1 in Physics

2007-01-08 14:17:39 · 2 answers · asked by j b 2 in Geography

How does water enter the body other than by consumption (eating/drinking)?

2007-01-08 14:16:04 · 6 answers · asked by winterdarkrain 1 in Biology

I'm writing a book and a related website focused on the wonder and process of visiting notable scopes and observatories, both large and small, throughout the world.

Thank you for you help!!

2007-01-08 14:15:54 · 2 answers · asked by lsberman 1 in Astronomy & Space

plzzz go on my answers and check which one answerd my question correctly,,,,cuz i really need it its due tomarrow,,
thank you soo much

2007-01-08 14:15:38 · 4 answers · asked by lola 1 in Mathematics