Science & Mathematics - 1 November 2006

Is there a device out there that I can install on a small rotary motor to covert the rotary movement of the rod to linear movement? (instead of going through the process of assembling the gear, shaft..., this must have been done before...).

2006-11-01 16:23:58 · 4 answers · asked by Anonymous in Engineering

2006-11-01 16:23:56 · 5 answers · asked by Anonymous in Weather

2006-11-01 16:23:26 · 3 answers · asked by flyboy711672005 1 in Medicine

I remember there being a way to find z-scores using the TI-83 instead of using a table. I think it involved the normalcdf function. How is this done?

2006-11-01 16:21:27 · 2 answers · asked by Anonymous 3 in Mathematics

if I have the limit as n goes to infinity of (1+1/n)^n = e.

How do I evaluate the limit as n goes to infinity of (1+2/n)^n?

2006-11-01 16:20:42 · 2 answers · asked by ? 1 in Mathematics

2006-11-01 16:20:02 · 20 answers · asked by bigbri4n 1 in Physics

1.) Find the angle to the nearest degree (rounded degree) that
x - 3y - 4=0 makes a positive x-axis

2.) Determine the rational zeros: f(x)=x^3 + 2x^2 + 4x + 9

3.) Solve: tan (theta) = - .5 for all values of (theta)

2006-11-01 16:19:44 · 2 answers · asked by trish 2 in Mathematics

help me!!!!!

2006-11-01 16:19:30 · 4 answers · asked by dest s 1 in Mathematics

Are the areas of two rectangles proportional to the lengths of their corresponding sides? Please Explain. Thanks.

2006-11-01 16:19:22 · 2 answers · asked by Anonymous in Mathematics

please give me step by step instructions on how to solve this, I have completly forgotten!!
31/3 - 2 5/6

2006-11-01 16:18:40 · 4 answers · asked by ? 3 in Mathematics

The theory of evolution has serious flaws.

It makes much more sense to believe that complex things and living things were intelligently designed or created.

2006-11-01 16:16:05 · 11 answers · asked by curious_inquisitor 1 in Biology

F(x,y)=x^4y^-1

2006-11-01 16:14:12 · 1 answers · asked by julia t 1 in Mathematics

I don't remember where I saw this, but I believe I read somewhere that if one places two different kinds of conductors next to each other in a circuit, running current in one direction produces heat, while running current in the other direction absorbs it. Did I make this up, or is there something remotely like this?

2006-11-01 16:13:41 · 8 answers · asked by Anonymous in Physics

is there anytime during the year that there would be no shadow

2006-11-01 16:11:03 · 1 answers · asked by Kristy S 1 in Geography

i need info for a project.

2006-11-01 16:07:43 · 1 answers · asked by bkern 3 in Engineering

how do i find the integral between 3 and -2 (3 on top) for
x^3(x^2 - 1)dx

2006-11-01 16:07:36 · 8 answers · asked by iamthehandcuff 1 in Mathematics

Multiply (5-3i)(3+6i). I heard my sub say that we're supposed to use "FLOI" when there's complex numbers and I have a test tomorrow. I need to confirm whether or not if its FOIL or FLOI so help someone, please. =]

2006-11-01 16:03:26 · 19 answers · asked by Anonymous in Mathematics

Simplify!
[ (x + 1) / (x - 1) ] - [ (x - 1) / (x + 1) ]


*Ans: 4x / (x^2 - 1)*

I'll post full solution in 30 min
see if u can solve it!

2006-11-01 16:00:57 · 11 answers · asked by Moo 4 in Mathematics

2006-11-01 15:59:13 · 6 answers · asked by soccerman2431 1 in Mathematics

2006-11-01 15:56:17 · 9 answers · asked by Anonymous in Physics

assuming "light speed" is the fastenst speed tha we know of today.

2006-11-01 15:56:17 · 10 answers · asked by sparcs1944 1 in Astronomy & Space

2006-11-01 15:54:55 · 4 answers · asked by substance 2 in Chemistry

2006-11-01 15:53:48 · 6 answers · asked by sabrina 1 in Zoology

With the doctor's permissioin, how do you wean yourself off of medication to the point where your body can function on its own?

2006-11-01 15:53:20 · 3 answers · asked by Snorty 1 in Medicine

2006-11-01 15:52:49 · 2 answers · asked by tanisq 1 in Mathematics

Is there any in-depth books and websites relating to the Physics of Supernovae and/or Black holes/M-Theory. (not the basic Brief History of Time kind of stuff). I will be most grateful.

2006-11-01 15:52:11 · 1 answers · asked by elguapo_marco_2008@sbcglobal.net 3 in Astronomy & Space

I have always wondered about this when ever I see pictures of them on TV.

2006-11-01 15:51:17 · 8 answers · asked by Geronimo 1 in Zoology

The phone company requires callers to dial 10 digits instead of 7 because it was running out of phone numbers. The number of possible 10-digit phone numbers is 100 times larger than the number of possible 7-digit phone numbers. Does this make sense? Explain

Please help because I'm very stuck!

2006-11-01 15:47:05 · 6 answers · asked by Cheza 2 in Mathematics

2006-11-01 15:45:25 · 7 answers · asked by Ryan D 2 in Mathematics

Describe three different methods of conceptualising fractions. Compare these methods with respect to the operations on fractions needed in order to work with them:

This is the answer:
Ratio, part whole and divison.
Divison: useful for multiplication and division
Part whole: useful for adding and subtraction

What, though, is ration useful for when conceptualising fractions?
How do division and part whole conceptualise fractions?

2006-11-01 15:45:21 · 1 answers · asked by Laura 1 in Mathematics