Science & Mathematics - 29 September 2007

2007-09-29 10:26:30 · 8 answers · asked by Anonymous in Mathematics

2007-09-29 10:26:05 · 3 answers · asked by cc_f_cutie 1 in Agriculture

For each positive integer n, let S(n) denote the sum of the digits of n. For how many values of n is n+S(N)+S(S(n)) = 2007?

2007-09-29 10:22:23 · 1 answers · asked by journey 1 in Mathematics

The diagram can be found in engineering statics textbook 11th edition as problem 3-33.

2007-09-29 10:20:59 · 1 answers · asked by edgar s 1 in Engineering

Lea took 2 days to get to her grandma's house which is 450 miles away. On saturday she traveled 50 more miles than sunday, how many miles did she travel on sunday? on Saturday?

2007-09-29 10:20:38 · 12 answers · asked by mike_online_now 3 in Mathematics

If f(x)=x^2+2 find the sum and differences of the roots (solutions) of the equation: f(f(x) + 3f(x) = xf(x) + f(x).

10 points for best answer! (Please show work)!

2007-09-29 10:20:32 · 1 answers · asked by Cerina A 3 in Mathematics

A spacecraft is filled with 0.500 atm of N2 and 0.500 atm of O2. Suppose a micrometeor strikes this spacecraft and puts a very small hole in its side. Under these circumstances,

a. O2 is lost from the craft 6.9% faster than N2 is lost.

b. O2 is lost from the craft 14% faster than N2 is lost.

c. N2 is lost from the craft 6.9% faster than O2 is lost.

d. N2 is lost from the craft 14% faster than O2 is lost.

e. N2 and O2 are lost from the craft at the same rate.

2007-09-29 10:18:10 · 1 answers · asked by Anonymous in Chemistry

2007-09-29 10:18:00 · 13 answers · asked by Odett 1 in Mathematics

Find the vertical, horizontal and oblique asymptotes for the rational function below, if any. Explain what you are doing step by step.

R(x) = (x + 5)/(x^2 + 1)

2007-09-29 10:13:39 · 3 answers · asked by journey 1 in Mathematics

How are bubbles inserted into the bloodstream for ultrasound imaging? What device is used? Source please!

2007-09-29 10:10:37 · 2 answers · asked by Rori S 1 in Medicine

2007-09-29 10:10:32 · 13 answers · asked by alser 2 in Zoology

I have always been fascinated by things like telekinesis, but I was just wondering how far can it be developed, obviously not as much as in films but how much?

2007-09-29 10:09:39 · 14 answers · asked by Ruhaif Tousis 1 in Parapsychology

2007-09-29 10:08:23 · 17 answers · asked by alser 2 in Astronomy & Space

Simplify : sqrt -2 * sqrt - 8


http://img.photobucket.com/albums/v711/shannayanna476/M3FA_1.gif
How many real roots does this quadratic equation have that is represented by the graph above?

2007-09-29 10:07:17 · 2 answers · asked by gaby t 1 in Mathematics

As a process of nature, natural selection was familiar to biologists before Darwin, who defined it as a "mechanism that keeps species unchanging without being corrupted". Darwin was the first person to put forward the assertion that this process had evolutionary power and he then erected his entire theory on the foundation of this assertion. However, since Darwin’s time, there has not been a single shred of evidence put forward to show that natural selection causes living beings to evolve. Colin Patterson, the senior palaeontologist of the Museum of Natural History in England, stresses that natural selection has never been observed to have the power to cause things to evolve:
“No one has ever produced a species by mechanisms of natural selection. No one has ever got near it and most of the current argument in neo-Darwinism is about this question1.”
Natural selection holds that those living things that are more suited to the natural conditions of their habitats will prevail by having offspring that will survive, whereas those that are unfit will disappear. For example, in a deer herd under the threat of wild animals, naturally those that can run faster will survive. That is true. But no matter how long this process goes on, it will not transform those deer into another living species. The deer will always remain deer.
When we look at the few incidents the evolutionists have put forth as observed examples of natural selection, we see that these are nothing but a simple attempt to hoodwink.

2007-09-29 10:04:29 · 8 answers · asked by Anonymous in Biology

the water out of the tank. Radius= 5 feet

2007-09-29 10:03:44 · 2 answers · asked by Anonymous in Engineering

where does the univerese begin and where does it end?

2007-09-29 10:01:52 · 11 answers · asked by seahorse 5 in Astronomy & Space

Thanks! Hopefully someone out there knows alot about Parkinson's.

2007-09-29 10:01:34 · 1 answers · asked by pisces_02 2 in Medicine

What is the smallest that these two numbers could be?

2007-09-29 09:58:30 · 3 answers · asked by Ellie :) 2 in Mathematics

2007-09-29 09:58:08 · 7 answers · asked by Anonymous in Zoology

What happens to the field of view when you switch from the low power magnification to the high power magnification

2007-09-29 09:56:05 · 5 answers · asked by Anonymous in Biology

Arrange In increasing ionization energy.

Ar Cl Li Na P


there are exceptions to the rules I just can't remember what they are


A. Ar B. P C. Na < Li < P < Cl < Ar
D. P < Cl < Ar < Li < Na
E. Cl

2007-09-29 09:47:16 · 1 answers · asked by desigoddess217 1 in Chemistry

What do these "green" plants do that others cant do for life on earth?

2007-09-29 09:44:52 · 7 answers · asked by rich8792 3 in Botany

2007-09-29 09:44:16 · 1 answers · asked by kevster1020 2 in Geography

If anyone has hints on how to do this that would be awesome.

2007-09-29 09:41:54 · 3 answers · asked by ryan 3 in Mathematics

Ordered pairs: (0,6) (-1,9) (-2,12) (-3,15) (-4, 18)
Equation: y=-3x+6

Does the equation make sense?

2007-09-29 09:41:39 · 6 answers · asked by Lola 1 in Mathematics

...to his planet - do you think you would be brave enough to go?

2007-09-29 09:39:12 · 26 answers · asked by Hello Dave 6 in Astronomy & Space

For the final step in a calculation, Paul accidentally divided by 1000 instead of multiplying by 1000. What should he do to his answer to correct it?
Multiply it by 1000
Multiply it by 100,000
Multiply it by 1,000,000
Square it.
Double it.

An even number can be all of the following EXCEPT
the sum of two odd numbers.
the sum of two even numbers.
the sum of two prime numbers.
the product of two even numbers.
the product of two odd numbers.

3-|-8+4|
7
4
-7
-1

If A = {1,3,5,7,9,11} and B = {2,4,6,8,10,12} What is the intersection of A and B?
{ }
{4,5,6}
{1,3,5,7,9,11}
{1,2,3,4,5,6,7,8,9,10,11,12}

P = {0,1,2,3,4,5,6} and Q = {2,4,6,8,10}.
What is the Union of P and Q?

Simplify and show your work:
|3(-2) - 7| - 7 = ?

2007-09-29 09:39:06 · 2 answers · asked by Anonymous in Mathematics

Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressure it is found that one volume of Cl2 reacts with three volumes of F2 to yield two volumes of the product. What is the formula of the product

2007-09-29 09:38:30 · 4 answers · asked by PiNk-PrInCeSs 3 in Chemistry

Explain your reasoning.

2007-09-29 09:35:59 · 8 answers · asked by lolabarry 2 in Physics