Science & Mathematics - 22 October 2007

2007-10-22 14:53:10 · 3 answers · asked by slow ride 1 in Engineering

2007-10-22 14:50:26 · 11 answers · asked by Anonymous in Physics

Why is it important that solutions administered to hospital patients through an I.V. be isotonic? What would happen if the solution was hypertonic to the patient’s blood? What would happen if the solution was hypotonic?

2007-10-22 14:50:11 · 1 answers · asked by 123 1 in Biology

Then what are the possible dangers of eating genetically modified foods, or releasing/production of bacteria to the environment that have genetic alterations targeting human gen expression and living in human intestinal lining or internal linings of digestive truck

2007-10-22 14:49:51 · 2 answers · asked by Genetikçi 2 in Other - Science

answer doesnt have to be right
i thought hydrogen..
but i need other examples to test.

2007-10-22 14:47:16 · 1 answers · asked by cityancolour 2 in Chemistry

What is the cardinality of {o,{o}} where o is the empty set

2007-10-22 14:46:12 · 3 answers · asked by Y1083 1 in Mathematics

wanting to build a robot to organize my closet....any ideas?

2007-10-22 14:45:38 · 2 answers · asked by Anonymous in Engineering

2007-10-22 14:44:39 · 26 answers · asked by Billie 5 in Parapsychology

can somebody explain how I answer write this question? I know what the zeroes are im just not sure about the last two points...

Determine the equation if the zeroes are -2 and 3 and the graph passes through the point (1,4)

Determine the equation if the zeroes are -3, 1 and 2 and the y-intercept is 3

2007-10-22 14:43:51 · 2 answers · asked by Anonymous in Mathematics

It's the sum from K=1 to infinity for (K)/(K!)

It's merely auxillary to another problem (statistics.....poisson distribution).....

But I've forgotten how to do this one, and I don't have a book on integrals and sums with me.

2007-10-22 14:43:43 · 4 answers · asked by Anonymous in Mathematics

I keep getting -9 and its wrong

2007-10-22 14:43:30 · 10 answers · asked by johnniedr3 1 in Mathematics

has any1 heard of a movi called "the core"

2007-10-22 14:42:32 · 4 answers · asked by i LOVE zjefferson121 1 in Astronomy & Space

i need the spacific answer because like if i get this i get 10 extra bonus points on my next science test.

2007-10-22 14:41:11 · 4 answers · asked by Crazyclown 1 in Zoology

Why can't ammonia NH3 donate a proton (when in water) but ammonium NH4 can? and why can't ammonium accept a proton and ammonia can?

btw all I learned so far are 2 theories of acids/bases: Arrhenius and Bronsted-Lowry.

2007-10-22 14:40:34 · 4 answers · asked by Anonymous in Chemistry

Our class had to do an experiment on osmosis. We placed a potato cube into a salt mix water concentration for about 21 hours
and the cube gained weight. Our previous observations was that the cube lost weight. Can anyone explain why the potato cube would gain weight? Thx so much.

2007-10-22 14:40:02 · 2 answers · asked by Anonymous in Chemistry

2007-10-22 14:37:18 · 4 answers · asked by Anonymous in Biology

its close, If you think about Armagedon how do you think/what do you think will happen and what will you be doing

2007-10-22 14:37:06 · 10 answers · asked by Anonymous in Astronomy & Space

& ORTHO & PARA DIRECTING GROUPS,META DIRECTING GROUPS

2007-10-22 14:31:24 · 2 answers · asked by Anonymous in Chemistry

I googled the definition and there were a lot...none of which I understood. So ..maybe an example would explain it better. Does it have to do with paranormal? I always thought it did.

2007-10-22 14:30:24 · 6 answers · asked by Deenie 6 in Paranormal Phenomena

It is possible to optimise the bacterial consortia in an activated sludge process by adjusting the operational conditions. Thereby problems like high numbers of free swimming bacteria or sludge with poor settling properties can be reduced. what are the factors that can influence the microbial composition in the process and why?

2007-10-22 14:28:29 · 4 answers · asked by king_dipu 2 in Engineering

Show that a positive integer is divisible by 11 if and only if the difference of the sum of its decimal digits in even-numbered positions and the sum of its decimal digits in odd-numbered positions is divisible by 11.

2007-10-22 14:27:43 · 2 answers · asked by Anonymous in Mathematics

all i know is something about the horizontal rule or something..

2007-10-22 14:27:29 · 2 answers · asked by jmacsgrl15 2 in Mathematics

2007-10-22 14:27:27 · 1 answers · asked by Anonymous in Mathematics

once again biology....

role in ATP production for...

1. carbohydrates
2. lipids
3. proteins
your help will be appreciated

2007-10-22 14:27:26 · 1 answers · asked by MiMi ! 1 in Biology

Do you think the ocean floor contains any living things?

2007-10-22 14:26:19 · 5 answers · asked by sk8terchick818 2 in Physics

φ(n) is almost always divisible by 4. Describe all the n's for which φ(n) is not divisible by 4.

2007-10-22 14:25:40 · 2 answers · asked by gumy23s 1 in Mathematics

2007-10-22 14:25:31 · 1 answers · asked by birmingham927 2 in Mathematics

An airplane flies at an altitude of 5miles toward a point directly over an observer. The speed of the plane is 600mph. Find the rate at which the angle of elevation "theta" is changing when the angle is a) theta = 30degrees
b) theta = 60deg
c) theta = 75deg

2007-10-22 14:23:40 · 1 answers · asked by Sean 2 in Mathematics

I took my chemistry class in order to challenge myself mentally..and now I'm struggling. My question has to do with 4 questions on my study sheet that I really don't know how to do, and I'm going to need it is my guide for the next test. I would really appreciate it if someone could help me out with this if they get it. I don't know the answers, and although I have a kinda-sorta idea of how to get them, I don't have any answers to check it with. Care to try, anyone?

How many moles contain each of the following?
1.) 3.75 x 10^24 molecules CO2
2.) 3.58 x 10^23 formula unites ZNCl2

Determine the number of moles present:
a.) 22.6g AgNO3
b.) 6.50g HCL

thank you!

2007-10-22 14:23:30 · 3 answers · asked by .Vee. 1 in Chemistry

Pls don't jus tgive me the answer, but just give the solution showing the steps involved in solving this problem

2007-10-22 14:21:12 · 2 answers · asked by venky 2 in Mathematics