Science & Mathematics - 22 August 2007

when i was or 2 i dont know, me and my dad were looking for a madicine at a store, not even the workers ther could find it ,but the first one i grabed was the medicine.
when i went to mexicon about 5 years ago, we were in a hotel with a beach view, i saved my little cousins life.he was trying to get in the pool and i told him, no, u might drown so i made him put on a life saver, he sliped, and then if he hadnt of been wearing it , he would of hit his head and died.
and once, i was just talking without a seat belt and i just suddenly grabbend the seat belt and put it on out of nowhere, and suddenly we crashed 5 seconds later.and amazingly nothing happened.
oh.once i was going to the desert, ant our van was about to run out of gas, and i didnt know how to read.then i closed my eyes and told my dad, in 3 miles theres a gasolin station.ther was!and agen last week i went to a pool and i saved the same little cuzin from drowning.i have more stories.

2007-08-22 11:35:47 · 17 answers · asked by Anonymous in Physics

Does anyone know any helpful tricks in knowing how many valence electrons a given element has?

2007-08-22 11:35:41 · 5 answers · asked by behindthemask 2 in Chemistry

Both plants impair jugment. One has a shorter "high" effect... but why is Salvia legal, where as the other is not?

2007-08-22 11:35:31 · 5 answers · asked by Mom 4 in Agriculture

plz show the steps plz i need your help then free 10 pts
prove the identity or i cannot attend college plz im desperate for help if you answer these correctly then i can enter plz help me
1) (1+sin x) / cos x + cos x / (1+ sin x) = 2 sec x

2) (sinx +tan x) / (1+ cos x) = 1/ cot x

3) sec ^2 x / ((sec^2 x) - 1) = csc ^2 x

4) sincos2+sin^3x = 1 / csc x

2007-08-22 11:29:34 · 9 answers · asked by Anonymous in Mathematics

1)X-2y=-25
3x-y=0

2)u-v=0
7u+v=0

3)2a=8
a+b=2
Use The Substitution Method and the Combination Method.(Please Help)

2007-08-22 11:26:52 · 4 answers · asked by Anonymous in Mathematics

Give me a simple way to do that is proven to work, not difficult enough to a degree where i cant understand it. ( I am in AP chem)

2007-08-22 11:25:08 · 2 answers · asked by shashank 2 in Chemistry

2007-08-22 11:19:34 · 4 answers · asked by jhazle 1 in Chemistry

I will be going to England, and need to know if I need a "step-down" converter for a hair dryer and flattening brush AND a seperate one for an iPod charger and cell phone. I know I need the adapter plug, but wasn't sure about the voltage converter. Also, which is the best quality brand? Thanks!

2007-08-22 11:18:59 · 2 answers · asked by tootie 2 in Engineering

given the vectors v=-2i+5j and w=3i+4j, determine

1. (1/2)v
2. w-v
3. length of w
4. the unit vector for v

2007-08-22 11:18:18 · 2 answers · asked by Anonymous in Mathematics

i need help? i dont get it. can someone give all the answers to me or give me some tips. here it is:

lesson 10-4 practice b theoretical probability

AN EXPERIMENT CONSISTS OF ROLLING ONE FAIR DNUMBER CUBE. FINE THE PROBABILITY OF EACH EVENT.

number 1: P(3)
number 2: P(7)
number 3: P(1 or 4)
number 4: P( not 5)
number 5: P( <5)
number 6: P(>4 )
number 7: P(2 or odd)
number 8: P(3) ( equal or <)

PART 2:

AN EXPERIMENT CONSISTS OF ROLLING TWO FAIR NUMBER CUBES. FIND THE PROBABILITY OF EACH EVENT.

9: P( total shown = 3 )
10: P( total shown = 7 )
11: P( total shown = 9 )
12: P( total shown = 2 )
13: P( total shown = 4 )
14: P( total shown = 13)
15: P( total shown = (equal to or < 8 )
16: P( total shown = (equal to or < 12)
17: P ( total shown = ( < 7)

18: A BAG CONTAINS 9 PENNIES, 8 NICKELS, AND 5 DIMES. HOW MANY QUARTERS SHOULD BE ADDED TO THE BAD SO THE PROBABILITY OF DRAWING A DIME IS 1/6?

2007-08-22 11:07:38 · 2 answers · asked by Anonymous in Mathematics

how do you solve x^2 - 9 and the equation x^2 - 10

2007-08-22 11:06:30 · 6 answers · asked by Anonymous in Mathematics

2007-08-22 11:05:46 · 6 answers · asked by Anonymous in Paranormal Phenomena

2007-08-22 11:04:26 · 5 answers · asked by dad_hy 1 in Chemistry

Math.. forming a quadratic function given three points.

2007-08-22 11:03:13 · 4 answers · asked by Ricardo C 1 in Mathematics

does it go boom? blamo? create monkeys? what?

2007-08-22 11:02:16 · 14 answers · asked by benny b 1 in Chemistry

My daughter and I both got the answer 3, but her teacher said it's wrong.

2007-08-22 11:01:59 · 11 answers · asked by Emily Dew 7 in Mathematics

be specific please!!!i know how to find the domain and range of a normal function....

2007-08-22 11:01:08 · 1 answers · asked by pinkstar_032003 1 in Mathematics

be specific please!!!i know how to find the domain and range of a normal function....

2007-08-22 11:00:43 · 1 answers · asked by pinkstar_032003 1 in Mathematics

2007-08-22 11:00:27 · 20 answers · asked by Jeffrey K 1 in Zoology

2007-08-22 10:59:12 · 4 answers · asked by Red 2 in Mathematics

I have alot more problems then this. I'm stuck now.

I'm having troubles with these type of problems...

33 + 15w = 3w - w + 4w

12(5 + 2y) = 4y - (6 - 9y)

3y + 8 = -8x + 3
*slope intercept form*

Can anyone tell/show me how to do these?

2007-08-22 10:50:14 · 7 answers · asked by Msz Nia [[BabiieThiiqknesz]] 3 in Mathematics

if you look at almost every mammal on the planet it is only the female that has nipples. obviously this is to be able to feed the offspring of the animal while the male doesn't have any. my question is why do human males have nipples if they do not serve a purpose? if they do what do they serve?

sorry, but i am really bored.

2007-08-22 10:49:49 · 7 answers · asked by god_of_the_accursed 6 in Biology

I just moved into my own office finally and want to add some fauna.

2007-08-22 10:48:00 · 6 answers · asked by Anonymous in Botany

2007-08-22 10:46:10 · 2 answers · asked by dad_hy 1 in Chemistry

i have no clue!

2007-08-22 10:45:14 · 6 answers · asked by Anonymous in Weather

and for a thumbs up, how much area is transferred(as total volume doubled

2007-08-22 10:44:33 · 2 answers · asked by Book of Changes 3 in Physics

Theoretically, it sounds so simple, but in reality, it is increasingly difficult. Why? And why is creating a "close-to-perpetual-motion" machine so damn easy?

2007-08-22 10:41:04 · 8 answers · asked by ineedanswers 3 in Other - Science

2007-08-22 10:39:15 · 3 answers · asked by rose_pugh_69 2 in Earth Sciences & Geology

Something that can't be found on the internet.

2007-08-22 10:38:49 · 14 answers · asked by Anonymous in Physics

and then all life? Seconds, minutes, minutes or days. Similarly, the sunlight we receive right now how long ago was it transmitted?

2007-08-22 10:35:39 · 7 answers · asked by Colonia 2 in Physics