Science & Mathematics - 20 January 2007

i want some copper that doesn't soluble in HNO3

2007-01-20 15:24:09 · 2 answers · asked by Anonymous in Chemistry

2007-01-20 15:22:06 · 3 answers · asked by Anonymous in Earth Sciences & Geology

I have never seen one like this before. It looks like it could be a shore bird, although I see it at our community 3-hole golf course greens, about 3 miles from the Pacific in central California It is slim, has long legs like a shore bird, looks a lot like and is the size of a plover. Except it has a long white neck with a narrow black ring in the middle. And has a yellow beak. The back, wings and head are grey, the underside is off-white. It seems used to people and walks slowly along the short grass seeking grubs. I have only seen it for a week and have not seen it in flight.
I have searched my bird books and googled but see nothing just like

2007-01-20 15:19:32 · 6 answers · asked by Everyman 3 in Zoology

Many medical schools have clinics where med students can volunteer under the supervision of an attending doctor, and the students interview, examine, and treat patients. Is there any protection these students have from being sued for malpractice? Does the liability fall with the attending? Or can students be sued?

2007-01-20 15:19:07 · 5 answers · asked by Surely Funke 6 in Medicine

2007-01-20 15:17:53 · 6 answers · asked by vinod g 1 in Mathematics

Find the position vector of the point D such that ABCD is a parallelogram. I used AB=DC where AB and DC are vectors and AB=DC in terms of their magnitude but couldn;t find a valuse for p.

OA= 2i + 3j - 4k
OB= 5i - j + 2k
OC= 11i + pj +14k

Can anyone help me see if p can be found through the magnitude thing? cause i got p^2 + 8p +83=0 when i used AB=DC but the equation can not be solved.

2007-01-20 15:16:12 · 2 answers · asked by Anonymous in Mathematics

This is the question exactly from the book

A group asked this survey question: Do you agree that all countries should sign the Kyoto Accord?

a) Describe any problems with this question?

b) How would you improve the question?

2007-01-20 15:14:13 · 2 answers · asked by Anonymous in Mathematics

I am struggling with this math problem.

x^2-2x-35
over
x+5

^2 means to the second power.
Thanks for the help.

2007-01-20 15:13:50 · 7 answers · asked by richardsonlover12 1 in Mathematics

2007-01-20 15:11:24 · 4 answers · asked by Rachel T. 2 in Medicine

I am having some difficulties figureing out these problems and the textbook is not explaining it to well. I would ask my teacher but it is due on monday. Thank you in advance for any help.

find each of the following products:
a(a+5)(a-5)

and the other problem is
for each od the folwoing problems, let x represent the number then write an expression for the product.

The square of 5 more than a number.

Thanks again

2007-01-20 15:10:14 · 10 answers · asked by Tasha J 1 in Mathematics

a cubed minus 16ab squared.

2007-01-20 15:09:51 · 5 answers · asked by Anonymous in Mathematics

True or false

2007-01-20 15:05:19 · 4 answers · asked by steph158_4 1 in Mathematics

I have a zip code database that includes latitude and longitude. Can anyone help me the formula that count the distance between two zip codes?

2007-01-20 15:03:33 · 4 answers · asked by Anonymous in Geography

2007-01-20 15:02:57 · 7 answers · asked by steph158_4 1 in Mathematics

The problem is set up like this

preform the indicated calculations. Write your results in scientific notation.

(6 x 10^12)(3.2 x 10^8)
----------------------------
(1.6 x 10^7) 3 x 10^2)
the line in between the problems I am assuming is divide.


I also am having problems with this.

The price of an item is given by p=2x^2-100. Find the polynomial that represents the revenue generated from the sale of x items.


Can someone please help me I am so lost.

2007-01-20 15:02:52 · 4 answers · asked by Jeff D 1 in Mathematics

2007-01-20 15:02:29 · 6 answers · asked by steph158_4 1 in Mathematics

From the bigining of kerala what type of charector we found about kerala and what are the changes happend in fifty years.

2007-01-20 15:02:27 · 4 answers · asked by jsd comrades 1 in Geography

a. 5pi/4
b. 17pi/8
c. -pi/15
d. 37.3pi

how to figure these out?

2007-01-20 14:59:25 · 1 answers · asked by Anonymous in Mathematics

The Myan End-Time refers to the release of a bursting, twisting, uncoiling serpent of light residing in the constellation Sagittarius, rising out of the Mouth of God, the buldge in core of the Milky Way, striking the earth on the Winter Solstice, Dec. 21st, 2012. The shifting of our 4th dimension space-time perceptions of reality, by capturing our conscienceness, literally. The Bibical "rapture" is the experience of expanding one's sense of self into reality: the 5th dimension. How does this strike you? Ever hear of this as it pertains to the Myans?

2007-01-20 14:57:49 · 3 answers · asked by ZORRO 3 in Astronomy & Space

There's a lot of stuff here, but please if you're in doubt just keep reading. It might be a little hard to follow but that's because these are scientists. I believe that's why most creationalists keep shutting out the evolution theory, because they don't understand it! They need to be more UP to date with current data. The evolution theory is a theory, and we learn more and more every day about it. Now a theory is not just a normal "guess" it's the best guess we have from the present day knowledge we have and has been repeatedly tested (hundreds of times) and blah blah blah. Anyways, here is a link you guys doubting the evolution theory.

http://www.talkorigins.org/faqs/comdesc/

please read it completely and don't just stop reading because it's too hard. Just skip the section that you don't understand. I have many more scientific links if you want more. I'm just tired of people saying that there's no proof...

2007-01-20 14:55:21 · 4 answers · asked by bob888 3 in Biology

Find the number of permutations of 'n' objects taken n - 1 at any time for any positve interger 'n'. Compare this answer with the number of permutations of all 'n' objects. Does this make sense? Explain.

2007-01-20 14:50:32 · 3 answers · asked by Anonymous in Mathematics

iam doing a project on mango leaves i am not getting as many informations about the mango leaves so tell me uses of amngo leaves? with the sources if posiible also send me the pictures opf the mango leaves

2007-01-20 14:49:01 · 3 answers · asked by seenu 2 in Botany

A music store wants to display 3 identical keyboards, 2 identical trumpets, and 2 identical guitars in its store window. How many distinguishable displays are possible?

2007-01-20 14:47:58 · 7 answers · asked by Anonymous in Mathematics

I don't mean as in a photograph, I mean the light itself. Such that using this material during the day would later give you an accurate account of every last photon that hit it from any direction. Thus giving you color, intensity, and direction that could later on be used for other purposes. The ideal of this material would be the ability to than release the stored light again, as if you had cought it in a mirror and stored it until you chose to see the reflection.

2007-01-20 14:46:53 · 4 answers · asked by George M 2 in Engineering

H2O(l)+energy<->H2O(g)

2007-01-20 14:46:40 · 2 answers · asked by S 3 in Chemistry

http://answers.yahoo.com/question/index;_ylt=ArtE3FWjHRPFfGrVVD_Qyvzsy6IX?qid=20070111125207AAgDM8K&show=7#profile-info-5361ee4debd8b62f1f800fb1b2ce83d5aa


I didn't even answer, so I'm not complaining that mine wasn't chosen... It's just odd that something that makes no sense at all was the "best"

2007-01-20 14:45:39 · 27 answers · asked by Anonymous in Other - Science

Its complicated as to why I need this... but I need to know all of a chicken's body parts...

2007-01-20 14:42:16 · 2 answers · asked by Katrina 2 in Biology

any articles or references

2007-01-20 14:42:14 · 2 answers · asked by Anonymous in Engineering

Find a vector which is perpendicular to both AB and BC.

I only managed to form two equations which is AB.v=0 and BC.v=0 where v is the unknown vector and AB and BC are vectors.
I need one more equation as i have three unknowns so what more can you extract out from the question?
one more information is that A,B and C are not collinear.

Information if you want to work out the problem:
OA= i + j + k
OB= 2i + 3j+ 4k
OC= -i - 4j - 7k

2007-01-20 14:40:08 · 4 answers · asked by Anonymous in Mathematics

Six columns represent the average score for a student on six 20-point quizzes. The average is 14, but to obtain a satisfactory grade, an average of 15 is needed. The teacher gives two options to raise the average: (1) Throw out the lowest quiz score and base the average on the five remaining quiz scores or (2) take a seventh 25-point quiz to raise the average. Which of these options should the students choose if the lowest score on the six quizzes was 10 points?

2007-01-20 14:37:53 · 1 answers · asked by lynda c 1 in Mathematics