Science & Mathematics - 15 November 2007

Here are 3 interlocking gears. The largest gear has 14 teeth, the middle gear has 12 teeth, and the smallest gear has 6 teeth. The smallest gear can ONLY move in a clockwise direction, while the middle gear can move counter clockwise.


Q: How many turns will each gear have to make in order to turn all gears in their original starting direction??

2007-11-15 06:56:57 · 4 answers · asked by ** 3 in Engineering

i need help with an esaay question thanks

2007-11-15 06:55:31 · 1 answers · asked by Anonymous in Biology

My daughter asked me to ask.

2007-11-15 06:54:26 · 6 answers · asked by Ace of Spades 5 in Mathematics

how do you put subscripts and exponents without using like the ^ for an exponent?

2007-11-15 06:53:58 · 4 answers · asked by Matty B 3 in Mathematics

The question is, find the root of the following redicals to the nearest tenth.

(square root symbol) / 205.78

AND

(square root symbol) / 416

2007-11-15 06:53:06 · 2 answers · asked by Anonymous in Mathematics

2007-11-15 06:52:22 · 10 answers · asked by Nianna L 1 in Astronomy & Space

do i use the root test, the limit test...which test?

2007-11-15 06:51:27 · 6 answers · asked by whizkid2007 1 in Mathematics

I'm looking for a comparison of CO2 output from an automobile & a human being.

2007-11-15 06:50:26 · 1 answers · asked by bentoro2001 1 in Biology

Sodium chloride decomposes into metallic sodium and chlorine gas.

The correct answer for the chemical equation for this reaction is 2NaCl--->2Na + Cl2

Could somebody please explain how this answer is reached? It didnt say anywhere that there were 2 atoms of NaCl and I am wondering where the 2 came from.
Thank you!

2007-11-15 06:47:50 · 3 answers · asked by Jada 1 in Chemistry

2007-11-15 06:47:07 · 2 answers · asked by Yung Haze 1 in Weather

my friend stunned his partner because he was bitten by a rattlesnake. He stated it worked. Is it possible.

2007-11-15 06:46:25 · 7 answers · asked by Ace of Spades 5 in Medicine

Sodium hypochlorite: NaOCl

Should there be parenthesis around OCl, or do I have it right?

2007-11-15 06:46:00 · 2 answers · asked by isabelle.the.insomniac 2 in Chemistry

5 - x - 2 = 3 + 4x + 5

2.6x + 18 =m2.4x + 22

2007-11-15 06:45:13 · 6 answers · asked by Anonymous in Mathematics

1). A TRIANGLE OF BASE 8 CM AND HEIGHT 7 CM. Find the Area.

2). A TRIANGLE WITH A 50 MM BASE AND A 7 MM HEIGHT. Find the Area.

2007-11-15 06:40:46 · 10 answers · asked by jane 1 in Mathematics

what would i^100 be when written in a+bi form when you perform the indicated operation on it?

2007-11-15 06:38:35 · 5 answers · asked by Ayy Girl! 1 in Mathematics

Ln (13-12 x) = 5

I keep getting -11.284430 and it is not right...any ideas

2007-11-15 06:34:43 · 1 answers · asked by Nanna2 1 in Astronomy & Space

Hey there,
Can anyone please answer these questions:

(1) Is velocity on an incline constant or variable?
(So my graph should be a straight line or a curve?)

(2) Is acceleration on an incline constant or variable?
(So my graph should be a straight line or a curve?)

Thank you very much.

2007-11-15 06:32:04 · 5 answers · asked by Anonymous in Physics

2007-11-15 06:28:21 · 4 answers · asked by Anonymous in Geography

f(x) = X ^2 -3

Is it invertible and if so what is its inverse?
I say Not invertible but I want to double check bc I am not good at these.

Along with this one

F (x) = 2x / x - 7

I didn't think that was invertible either....

2007-11-15 06:27:12 · 6 answers · asked by Nanna2 1 in Mathematics

if not. why?

2007-11-15 06:25:09 · 6 answers · asked by Jay_Hill hs7 1 in Zoology

is it possible fossils can take only a couple hundred years to fossilize

2007-11-15 06:22:29 · 6 answers · asked by Jay_Hill hs7 1 in Earth Sciences & Geology

a 2
b 32
c 34
d 36

2007-11-15 06:21:18 · 3 answers · asked by WuteverIDC 1 in Biology

please wright down your work.

2007-11-15 06:18:46 · 4 answers · asked by Anonymous in Mathematics

2007-11-15 06:18:35 · 5 answers · asked by Silviu L 1 in Zoology

2007-11-15 06:18:19 · 1 answers · asked by Anonymous in Chemistry

A football is kicked following the path modelled by the equation h= -4t^2 + 10t + 3, where h is the hight of the ball above the ground in metres and t is the time since the ball was kicked in seconds.
a) describe the path of the ball
b) after how many seconds does the ball reach the ground?
c) how long does the ball stay above 5m?

Please briefly describe a and b as I think I can answer these but what I need to know is why when graphing this equation is the x-coordinate less than zero? Secondly, I have no idea how to preform the operations to answer c....Thanks ahead of time!!

2007-11-15 06:16:17 · 2 answers · asked by Anonymous in Mathematics

when i was really small maybe 4 i was in my room and woke up to find a huge revolving yellowish looking light on my wall..like a door and i couldnt open my door to get out, but i remeber vividly pounding and screaming for help..nobody helped me..the next day i told my mom and she was like..maybe it was a tow truck in the parking lot or something..but to this day 22 yrs later i say it was a door!

2007-11-15 06:13:32 · 5 answers · asked by Anonymous in Paranormal Phenomena

Hey there,
Can anyone please answer these questions:

(1) Is velocity on an incline constant or variable?
(So my graph should be a straight line or a curve?)

(2) Is acceleration on an incline constant or variable?
(So my graph should be a straight line or a curve?)

Thank you very much.

2007-11-15 06:12:55 · 1 answers · asked by Anonymous in Physics

How do you find the answer to this question? Also, my teacher is really concerned with the class learning how to write problems like this out in parentheses....how do I do this??

2007-11-15 06:12:42 · 2 answers · asked by Anonymous in Chemistry

2007-11-15 06:06:51 · 4 answers · asked by Anonymous in Chemistry