Science & Mathematics - 10 July 2007

2007-07-10 08:58:05 · 3 answers · asked by incineratethemachine 2 in Engineering

I'm not sure as to why if we know the chemical make up of water, why we can not create an "artificial water"?

2007-07-10 08:54:03 · 11 answers · asked by James S 1 in Chemistry

2007-07-10 08:50:53 · 11 answers · asked by Anonymous in Mathematics

2007-07-10 08:50:46 · 69 answers · asked by Earthbound Inquisitor 2 in Astronomy & Space

Give me the next three numbers in this pattern.

2, 7, 22, 67, ___, ____,___

2007-07-10 08:47:58 · 9 answers · asked by nia j 1 in Mathematics

2007-07-10 08:46:44 · 6 answers · asked by Lorenzo de' Medici 1 in Weather

2007-07-10 08:46:40 · 4 answers · asked by Anonymous in Engineering

1) You push a block up a ramp with friction. The block is moving at constant speed.
-The force you push with is greater than the force of kinetic friction.
-The force you push with is less than the force of kinetic friction.
-The force you push with is equal to the force of kinetic friction.
-Kinetic friction is not the important friction in this case, static friction is.
2) As you ride on a loop to loop in a roller coaster, select all the forces that might be acting on you at the top of the loop
(select ALL that are correct)
force down due to gravity
force down from the seat on you
force up on you from the straps holding you in place
centripetal force on you that is down

2007-07-10 08:45:02 · 2 answers · asked by Anonymous in Physics

2007-07-10 08:44:32 · 6 answers · asked by Anonymous in Engineering

An investor buying investment A pays a front end charge, Investment B has no front end charge but has higher ongoing costs. I need to solve for n. n needs to be a natural number.

n = number or periods
LD = front end charge
r = rate of return
b = the higher ongoing cost in investment B over investment A.

The return for investment a should be (1- LD)/ (1+r)^n
The return for B should be 1/(1+(r-b))^n

I need the value of n when A = B. I was given a formula, but n ended up negative. That doesn't help.

2007-07-10 08:44:24 · 5 answers · asked by Steve G 1 in Mathematics

its one step equation

2007-07-10 08:44:15 · 8 answers · asked by Anonymous in Mathematics

cant figure it out what the evalate

2007-07-10 08:41:38 · 16 answers · asked by Anonymous in Mathematics

You place a needle into the end of a SHARP pencil eraser and insert a string into the needle and place it over your wrist. Hold it still and it should either go in circles or back and forth. If the pencil goes in circles you will have a girl if it goes back and forth it's a boy. How does this work?

2007-07-10 08:41:32 · 4 answers · asked by Anonymous in Physics

what are the leading alternative theories to the more popular "Big Bang Theory"?

2007-07-10 08:39:20 · 9 answers · asked by Anonymous in Astronomy & Space

2007-07-10 08:37:11 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-10 08:34:19 · 2 answers · asked by downtownbrownkat1 1 in Medicine

if a person was thrown into a room wit no air?

2007-07-10 08:32:55 · 5 answers · asked by Anonymous in Astronomy & Space

A projectile's launch speed is five times its speed at maximum height. Find launch angle.
How to get the answer of 78.5 degrees?

Thanks

2007-07-10 08:29:32 · 2 answers · asked by Allan C 1 in Physics

I'm not talking about that user 'Ghost' who I think got banned now but the paranomral occurence.

I personally believe it to be a bunch of lies made up by attention seekers, bored people, scammers etc.

2007-07-10 08:28:43 · 25 answers · asked by Anonymous in Paranormal Phenomena

2007-07-10 08:28:16 · 18 answers · asked by YIZZEL/JON 1 in Physics

2007-07-10 08:23:24 · 3 answers · asked by farooq 1 in Physics

2007-07-10 08:11:15 · 2 answers · asked by cHaKa dOLL 1 in Chemistry

my teacher set this for me and i will get 5 points/merits for my house if i find this out, so please help. I'm in desperation

2007-07-10 08:11:06 · 21 answers · asked by Anonymous in Mathematics

2007-07-10 08:10:40 · 11 answers · asked by Anonymous in Zoology

2007-07-10 08:09:38 · 32 answers · asked by Anonymous in Mathematics

how far back do the swab tests go??

2007-07-10 08:05:05 · 10 answers · asked by LuCKy 1 in Medicine

2007-07-10 08:03:15 · 2 answers · asked by TOM H 2 in Chemistry

Paxil.

2007-07-10 07:55:43 · 8 answers · asked by Anonymous in Medicine

I have heard about programs which can enable me watching my home / address directly by means of satalite pictures for free so how can i get to them

2007-07-10 07:52:41 · 9 answers · asked by Rahaf m 1 in Astronomy & Space

2007-07-10 07:51:57 · 23 answers · asked by jason s 2 in Physics