Science & Mathematics - 29 November 2007

you can have more than one, i don't care

2007-11-29 11:28:26 · 7 answers · asked by Clumsical 6 in Zoology

Im doing a project which Im adding milk, Tide, salt, and oil to different cups of water and seeing which substance best prevents the evaporation of water. How do I measure how much WATER evaporated and not the other substances? any ideas?

2007-11-29 11:25:52 · 4 answers · asked by fluorine DX4 3 in Chemistry

what do cows eat oh and chickens and how often

2007-11-29 11:24:34 · 6 answers · asked by ethelyn n 1 in Zoology

2007-11-29 11:24:15 · 3 answers · asked by AskMe 2 in Chemistry

Hi, I need help with this math problem, i would understand it, but the situations are different rather than same in this rate time and total problem, so it has me confused.

The fill pipe for a tank can fill the tank in 4 h, and the drain pipe can drain the tank in 2h. If both pipes are accidentally opened, how long will it takes to empty a half-filled tank?

What has me confused here is the filling/draining situation, and the thing about a half filled tank, so if you could please explain them, that would be nice... ^-^

2007-11-29 11:23:16 · 5 answers · asked by |♥*/♥\*♥| 3 in Mathematics

The ordering and transportation cost C of components used in manufacturing process is approximated by

C(x)= 10 (1/x + x/(x+3) )
where C is measured in thousands of dollars and x is the order size in hundreds

A.) Verfiy that C(3)=C(6)
B.) According to Rolle's Theorem, the rate of change of cost must be 0 for some order size in the interval [3/6] Find this order size in hundreds

It's for my AP Calc class, of course steps would be FANSTASTIC so I could figure out how to do this on my own but I'd more than happy with a step or two. Thanks

2007-11-29 11:22:51 · 1 answers · asked by ariellmae 2 in Mathematics

is this statement true H2(g)+Cl2(g)-->no reaction if so why? why not?

2007-11-29 11:21:47 · 2 answers · asked by Ms.Q's 1 in Chemistry

Please respond soon guys because this is a project due in 2 days at school...

2007-11-29 11:19:43 · 5 answers · asked by Rawan 2 in Chemistry

2007-11-29 11:19:23 · 1 answers · asked by Rainbow Bright 1 in Astronomy & Space

2007-11-29 11:19:16 · 10 answers · asked by danielle' 1 in Mathematics

If no, why do we use a compass for finding north?...

2007-11-29 11:17:42 · 12 answers · asked by tralala 1 in Earth Sciences & Geology

can you show your work if possible........?

2007-11-29 11:16:14 · 20 answers · asked by Juan C 6 in Mathematics

2007-11-29 11:12:06 · 2 answers · asked by Kitty Cat 1 in Astronomy & Space

2007-11-29 11:10:41 · 3 answers · asked by Anonymous in Geography

helolppp

2007-11-29 11:10:26 · 2 answers · asked by Charliejean:) 2 in Geography

i have to do this project in science but i really didnt pay attention today and she was telling us about space

MY QUESTIONS
1. where is venus located in the solar system?
2. What is the name of our solar system?
3. What else is located in our solar system besides planets?
4. How many moons does Venus have

2007-11-29 11:09:25 · 5 answers · asked by Cait 2 in Astronomy & Space

2007-11-29 11:08:00 · 3 answers · asked by Anonymous in Zoology

PLEASE ANSWER THE QUESTION I ASKED BEFORE

2007-11-29 11:07:12 · 2 answers · asked by Anonymous in Geography

2007-11-29 11:06:58 · 8 answers · asked by Children of God 2 in Mathematics

Please don't say Einstein. And I need someone that is somewhat interesting

2007-11-29 11:06:27 · 4 answers · asked by Str1pes 2 in Physics

Here's the question:

"Given a well shuffled standard 52 card deck of playing cards(which contains 13 cards in a four suits and 3 face cards in each suit) what is the probability that you draw a red card or a face card on the first draw?"

they gave me a hint too: "it could be both."

2007-11-29 11:05:46 · 2 answers · asked by Anonymous in Mathematics

Water flows over a section of Niagara Falls at the rate of 1.0 x 10^6 kg/s and falls 48.0 m. How much power is generated by the falling water?
_W

2007-11-29 11:04:50 · 1 answers · asked by Anonymous in Physics

We have a bottle of liquid laxative that expired a while ago....would it be harmful to someone's health if they took it? I'm just curious..would anything bad happen?

2007-11-29 11:04:46 · 1 answers · asked by Haley 2 in Medicine

help please =]]]

2007-11-29 11:03:35 · 10 answers · asked by Dancing Queen 4 in Geography

2007-11-29 11:02:49 · 6 answers · asked by Anonymous in Chemistry

2007-11-29 10:58:57 · 2 answers · asked by Anonymous in Biology

2007-11-29 10:58:56 · 4 answers · asked by Anonymous in Geography

A ferris wheel has radius 50 ft. A person take a seat and then the wheel turns (2(pi)/3) radians. How far is the person above the ground??

2007-11-29 10:58:11 · 1 answers · asked by Anonymous in Mathematics

2007-11-29 10:57:45 · 16 answers · asked by danielle' 1 in Mathematics

Link: http://www.costco.ca/Browse/Product.aspx?Prodid=10292165&whse=BCCA&topnav=&browse=&lang=en-CA&s=1

My parents insist on buying me this one, because its from costco. Costco usually has good quality and excellent warranty, and they will not buy from any other store.

Is it okay for a beginner? Or is it too cheap? If you think its junk please suggest the price range or characteristics of a good telescope

2007-11-29 10:55:19 · 13 answers · asked by Anonymous in Astronomy & Space