Science & Mathematics - 13 November 2007

2007-11-13 15:41:17 · 7 answers · asked by Anonymous in Weather

First lets clarify the space over which this is happening. Let's say its the vector space V of polynomials. T:V-->V
I'm looking for the simplest easy to understand answer.
Is it because there are no elements in the domain whose image are constants? And constants are in the codomain but not in the range.....is that right...?

2007-11-13 15:39:31 · 1 answers · asked by Fred 1 in Mathematics

2007-11-13 15:37:40 · 2 answers · asked by WOMBAT, Manliness Expert 7 in Physics

Since there is no pressure from the outside balancing the pressure from the inside shouldn't the atoms and molecules just separate from each other?

2007-11-13 15:37:21 · 5 answers · asked by two bit 3 in Astronomy & Space

Mastering Physics frustrates me in that I finish all the problems except for one or two and those just sit there as I try until my tries run out.
Id like help on this problem. You dont need to do it for me, just point me in the right direction.
Jane makes a siphon to mix a drink with 7/8 orange juice and 1/8 cranberry from two identical glasses; one w/ cranberry one w/ OJ
The glass containing cranberry juice has a very large diameter with respect to the diameter of the straw and that the cross-sectional area of the straw is the same at all points. Atmospheric pressure is Pa and the cranberry juice has negligible viscosity.
Consider the end of the straw from which the cranberry juice is flowing into the glass containing orange juice, and let h_o be the distance below the surface of cranberry juice at which that end of the straw is located. Whats the initial velocity in g and h_o of the cranberry juice as it flows out of the straw? g is the magnitude of acceleration due to gravity.

2007-11-13 15:35:31 · 2 answers · asked by leah 1 in Physics

Since all "scentific" discoveries have to be sanctioned and scrutinized by an acidemic community that is finacially paid off so it discourages new discoveries?

2007-11-13 15:31:54 · 6 answers · asked by Vivianna 4 in Other - Science

2007-11-13 15:31:35 · 2 answers · asked by Anonymous in Earth Sciences & Geology

Uniformitarianism is the concept that the processes that are at work on earth today are the same processes that shaped the early history of earth.
True
False


If you wanted to study climate change, which fossil would be most useful? A fossil of an organism that is __________.
small, hard, abundant, sensitive to temperature change, and easily preserved
small, hard, abundant, resistant to temperature change, and easily preserved
large and difficult to find, but resistant to temperature change
large and difficult to find, but sensitive to temperature change


The fossil record provides evidence of past life as well as clues to the past climate, environment, and abiotic factors in an area.
True
False

2007-11-13 15:31:08 · 1 answers · asked by ......Really?...... 2 in Earth Sciences & Geology

2007-11-13 15:29:42 · 1 answers · asked by m_panagiotou 1 in Mathematics

help =/
how do i do that?

ex: 33 1/3% of 18

and

70% of 40

please help me.
give me steps.

2007-11-13 15:29:29 · 6 answers · asked by Anonymous in Mathematics

I had a professor in college who felt strongly that space is a substance and that this was an important idea in Metaphysics.

2007-11-13 15:27:45 · 4 answers · asked by exp 1 in Astronomy & Space

According to the national restaurant association, 20% of fine-dining restaurants have instituted policies restricting the use of cell phones. If you select a random sample of 100 fine-dining restaurants

a)What is the probability that the sample has between 15% and 25% that have established policies restricting cell phone use?
b)The probability is 90% that the sample percentage will be contained within what symmetrical limits of the population percentage?
c)The probability is 95% that the sample percentage will be contained within what summetrical limits of the population percentage


If someone can explain this to me since i havent been in class i injured my leg during a football game and couldnt walk please help me

2007-11-13 15:22:24 · 2 answers · asked by Anonymous in Mathematics

I have to do a project to build a model of a building & I have to test it out & I have to know what it takes to do it

2007-11-13 15:17:53 · 2 answers · asked by kaitlynn w 1 in Earth Sciences & Geology

which prediction is correct?
a. Half of the sons and none of the daughters will have hemophilia.
b. All of the daughters and none of the sons will have hemophilia.
c. Half of the daughters and none of the sons will have hemophilia.
d. All of the sons and none of the daughters will have hemophilia.
e. Half of the sons and half of the daughters will have hemophilia.

2007-11-13 15:13:35 · 3 answers · asked by tee 1 in Biology

Can someone answer this? Compare the motion and spacing of particles as a material cools from a gas to a liquid and then to a solid phase.

2007-11-13 15:11:30 · 5 answers · asked by lovetoread72 1 in Earth Sciences & Geology

I need help with my hw

2007-11-13 15:09:48 · 2 answers · asked by Unknown 1 in Earth Sciences & Geology

Long story short...my neighbor had a bit of a domestic dispute this evening came over to our home and needed a phone...I ended up crossing the yard in between our houses and heard Hissing and allot of it...three Doe and a Buck came barreling through the yards...I could not see them untill they were very close...I stepped out of the way and watched them run on to the other side of the street where two of them stopped and looked at me and then ran on...

Question:was I in danger and why?...I have heard deer are dangerous but I don't exactly know why...are the Doe ALL in heat at the same time??? Who are danderous the Doe or the Buck or both...What was the hissing...I swear it was the Doe hissing...any info would be appreciated!

2007-11-13 15:08:39 · 15 answers · asked by Jennifer 3 in Zoology

The universe had a beginning so then it must have an ending. I am not asking when it will happen, but how it will happen.

What are your thoughts?

2007-11-13 15:08:18 · 12 answers · asked by Anonymous in Astronomy & Space

2007-11-13 15:06:29 · 2 answers · asked by Anonymous in Biology

2007-11-13 15:06:27 · 2 answers · asked by Anonymous in Medicine

Methanol, CH3OH, can be made by combining gaseous carbon monoxide and hydrogen gas.
In one experiment 2.07 g of H2 is mixed with 16.90 g of CO.


How many grams of CH3OH will be produced?

2007-11-13 15:04:28 · 2 answers · asked by matt b 1 in Chemistry

2007-11-13 15:00:31 · 4 answers · asked by arbederi 1 in Physics

Okay. I am only 12 years old. Dont spaz cause im on yahoo, i just want a couple serious answers.
First, The ghost thing.

Okay. so 2 years ago, my dad died. About 5 minutes ago, i was reading answers in the paranormal section, and my dog was just standing in front of the door, wagging his tail, looking into the hall of the apartment building through a crack in the door. My mom went in the hall, and called for my dog to come. He just wouldnt come into the hall. He was still wagging his tail, but he would not go out of the apartment. I dont know if this is linked with my dad, i dont really know, but can someone just try and give an explanation?
Okay. Now the psychic thing.
I believe all humans have a part of their mind they have not gained control of yet. I, however can notice this sence in myself. I can see stuff in my sleep, just short little maybe 5 second flashes of time, and a week later, usually it happens. I get a sence that i have been in the situation just a while earlier.

2007-11-13 14:58:41 · 16 answers · asked by Anonymous in Paranormal Phenomena

If a 0.060 M sample of Co(N03)2 gave an absorbance of 0.29 at 500 nm in a 1 cm cell. What is the cobalt concentration of a solution giving and absorbance of 0.14 in the same cell at the same wavelength

2007-11-13 14:57:23 · 1 answers · asked by babye 1 in Chemistry

I have heard that this winter is suppose to be warm and dry from some people, and cold and snowy from others. So, which one is it?

2007-11-13 14:55:15 · 2 answers · asked by porpoise rider 81 3 in Weather

Which of the following molecules can form hydrogen bonds with other molecules of the same kind:

1) CH3F
2) CH3NH2
3) CH3OH
4) CH3Br

Explain your choice(s)

2007-11-13 14:54:16 · 1 answers · asked by To-the-Stars 4 in Chemistry

Please somebody tell me if this is wrong. We did a lab on reactivity in class (mixed a buch of metals w/ a bunch of nonmetals), and a post lab question is to say what ions tin and lead formed by looking at our data. I don't really no what this means, but here was my thought process.
The possible valences for tin and lead are +2, +4, and -4 right?? And since metals always "want" to lose electrons, and non metals always want to gain electrons I figured that when they bonded sn and pb would get a +2 or +4 charge, cuz they lost electrons. However, my instinct just tells me this is wrong, and I didnt use the data like the questino said to. I would appreciate any help, and promise to give 10 pts to best answer. at the very least pls confirm or deny my thought process.

2007-11-13 14:52:17 · 2 answers · asked by Person X 2 in Chemistry

Whaaat? So I like to look at the sky and such, and so I goggeled "professional stargazer" as something to do, humorously, and apparently there are such things as that. But, uh, how would one make money? Just wondering.
And don't try and be witty or cute. >:B

2007-11-13 14:52:09 · 9 answers · asked by metameta3 1 in Astronomy & Space

What do you make of the recent UFO conference?

2007-11-13 14:51:31 · 6 answers · asked by Robert S 7 in Astronomy & Space

What is the actual definition of "gravity." We all know how gravity works and it's effects. But nobody really "knows" what gravity is and why large masses attract other masses.

2007-11-13 14:50:13 · 10 answers · asked by Kenton C 4 in Physics