Science & Mathematics - 16 October 2006

We have a water softener in our home, but we believe it is not working properly. Rather than purchase a test-kit, is there an easy test we can do here at home to determine whether or not it is functioning properly? You would think we could tell the difference in the shower, but we just aren't sure. Sometimes we think it works, and sometimes we think it doesn't. We just want to make sure before we call a repair-person out. Thanks!

2006-10-16 04:48:30 · 4 answers · asked by mizmonica 2 in Other - Science

i'm a bit crap at maths you see.

2006-10-16 04:45:36 · 8 answers · asked by Anonymous in Mathematics

2006-10-16 04:45:30 · 5 answers · asked by 9929 3 in Biology

I am trying to do an assignement however I can't figure out what is the purpose for using a train tunnel. does anyone know why are train tunnels made? what is the purpose of the invention of train tunnels?

2006-10-16 04:42:14 · 5 answers · asked by www.mrcooldude.com 2 in Other - Science

i need to slove the inequality: 3/(x+2)<4 and then graph it on a number line. please help me!!!

2006-10-16 04:38:52 · 11 answers · asked by mycatisfat7 1 in Mathematics

2006-10-16 04:37:31 · 2 answers · asked by Anonymous in Physics

now i know that it is name like that because there are the seven siters stars and also that it represent 7native americans

2006-10-16 04:32:05 · 4 answers · asked by cinthia b 1 in Astronomy & Space

2006-10-16 04:31:57 · 8 answers · asked by sandybirgit 1 in Mathematics

Please, answer that!

And this one: is not correct to think that the several "universes" that the scientists postuate today is, as a whole, a univese only? A universe made of universes is a univese... not different universes...

2006-10-16 04:31:27 · 21 answers · asked by Anonymous in Astronomy & Space

2006-10-16 04:30:55 · 3 answers · asked by MM 1 in Chemistry

2006-10-16 04:30:19 · 5 answers · asked by Anonymous in Geography

2006-10-16 04:29:18 · 13 answers · asked by muaythai 1 in Other - Science

this in fraction form like this... ___5____ is over the x -6(x negative 6) = 7 and I need to find value of x

2006-10-16 04:23:10 · 12 answers · asked by Suzicat 1 in Mathematics

Just think,,, large self contained structures with large expanses for growing food, parks, trees and birds,, some on the surface,, most below to protect from radiation.

1/6th gravity sports, and recreation, a means of learning to recycle EVERYTHING and expand our foothold away from our ever shrinking earth bound resources.
I belive it is not only possible but imperative we start NOW to get off of this rock before it is too late.
Anyone agree?

2006-10-16 04:23:10 · 6 answers · asked by landerscott 4 in Other - Science

Please answer a.s.a.p.
The first answer will also get the best answer reward.

2006-10-16 04:20:54 · 11 answers · asked by Daniel 2 in Mathematics

2006-10-16 04:14:25 · 5 answers · asked by ARTURO C 1 in Physics

2006-10-16 04:09:26 · 4 answers · asked by 9929 3 in Biology

2006-10-16 04:09:24 · 10 answers · asked by Anonymous in Other - Science

1. Find the volts available at the secoundary.
2. The current in a ten ohm device connected to the secoundary.
3. The power supplied to the primary.

I know the first one, 60V in the secoundary.

Not sure how to solve the 2nd. I know the formula is C=V/T....

the third the formula is Power=C*V

Anyone want to help me out. Not sure what to plug in to get the results....explain please

2006-10-16 04:09:18 · 2 answers · asked by wildbutterflychick 2 in Physics

how did u do the operation?

2006-10-16 04:08:13 · 11 answers · asked by Anonymous in Mathematics

2006-10-16 04:06:25 · 5 answers · asked by Choad McChump 1 in Mathematics

I know the answer is 103.71, but I need to show my work. I just plugged in mnumbers until I found it. Can someone explain to me how they got hte answer? At first i used two equations like
X * .08 = T

X + T = 112
X = 112-T

,but then that would mean (112-T).08 = Tand then it would beb 8.96 -.08T = T and I do not know how to solve that.

2006-10-16 04:05:29 · 7 answers · asked by phonics808 2 in Mathematics

2006-10-16 04:03:35 · 1 answers · asked by heron 1 in Mathematics

2006-10-16 04:01:25 · 6 answers · asked by wildbutterflychick 2 in Physics

If i was going to go five seconds into the past to stop myself from going to the past - then all of a sudden before i visit the past another me comes streaming forth out of nowhere and successfully stops me visiting the past - wouldn't that prove alternate dimensions?

That would mean i was successful in stopping myself visiting the past - but if i didn't ever visit the past who's the guy standing in front of me? It would have to be me from another timeline in which i was successful in halting my own progression through time and the me in the current dimension is an alternate reality in which my time travelling attempt failed.

It might be a little confusing - but time travel is actually possible and this shows that alternate dimensions probably exist. The only case in which this shouldn't be accepted is if "destiny" guides our every move and in turn makes it impossible for me to interact with myself - through a series of coincidences what render my time travelling attempts moot.

2006-10-16 03:58:42 · 6 answers · asked by Anonymous in Other - Science

Construction/engering or law school.
my son is intested in both industries, but my boyfriend and i are in construction/elevator business. thanks.

2006-10-16 03:58:34 · 4 answers · asked by Anonymous in Engineering

Perhaps HE30 TF Aluminium would be a good Aluminium to use for my Astronomical Telescope mirror. I am going to try to grind my own mirror.!

2006-10-16 03:55:09 · 9 answers · asked by Richard A 1 in Physics

a^b-b^a=b-a

2006-10-16 03:51:43 · 2 answers · asked by Anonymous in Mathematics

2006-10-16 03:50:59 · 12 answers · asked by Anonymous in Zoology

2006-10-16 03:45:00 · 8 answers · asked by Anonymous in Mathematics