Science & Mathematics - 9 November 2006

2006-11-09 14:08:19 · 5 answers · asked by white gurl 1 in Earth Sciences & Geology

Why is string theory such a prevalent theory among physicists when there is absolutely no empirical evidence for it?

2006-11-09 14:07:01 · 5 answers · asked by taotemu 3 in Physics

2006-11-09 14:06:54 · 7 answers · asked by warrenisace 1 in Weather

thanks i owe ya one

2006-11-09 14:04:58 · 3 answers · asked by cartergirl_denise 1 in Physics

A: How many black and how many red counters are there in a triangular array like this but with 20 rows?

 - Black
 -Red
 -Black
 -Red
 -Black

You should not actually need to make a diagram with 20 rows in order to answer this question.

B: Write a brief explanation of your solution to part (a).

C: Repeat part (a) but with a triangular array with 21 rows.

D: What integers are represented by the triangular arrays in parts (a) and (c)?

E: Make a table of integers represented by triangular arrays like those in parts (a) and (c), but with n rows for n=1, 2, 3, 4, 5, 6, 7, and 8.

F: Carefully considering the table of part (e), conjecture what integer is represented in a triangular array like those in parts (a) and (c), but with n rows, where n is any natural number (Suggestion: Consider n odd and n even separately.)

2006-11-09 14:03:50 · 2 answers · asked by llarsen78 1 in Mathematics

2006-11-09 14:03:46 · 7 answers · asked by loist63 1 in Earth Sciences & Geology

Sqrt(x^3y^9) = xy^4sqrt(xy)

Sqrt(x^9y^9) = x^4y^4sqrt(xy)

The ^ is where the number should be an exponet to the number it.
Now explain how the answer is what it is plz.

2006-11-09 14:03:29 · 3 answers · asked by nccgs 2 in Mathematics

thanks

2006-11-09 14:02:42 · 4 answers · asked by cartergirl_denise 1 in Chemistry

CH4 + O2 → CO2 + H2O


how many moles of CO2 are produced from the complete reaction of 4.58 moles of O2 ?

2006-11-09 14:01:06 · 2 answers · asked by simonkf2002 1 in Chemistry

thanks

2006-11-09 14:01:03 · 6 answers · asked by cartergirl_denise 1 in Physics

4Cu + O2 -->

What is the name of the compound ?

2006-11-09 14:00:05 · 4 answers · asked by simonkf2002 1 in Chemistry

What makes it different from the regular filters and distillation and so on? What is the membrane is that a filter too? If so, what is the purpose of having a total of 3 filters?
-
-
-
Please keep it simple to understand.

2006-11-09 13:59:01 · 4 answers · asked by whywhatwhenhowwho 1 in Engineering

2006-11-09 13:53:57 · 3 answers · asked by wiktoria 1 in Chemistry

i've noticed the same temperature feels much cooler at night than it does during the day. what's up with that? shouldn't we use wind chill factor or something to measure how how it feels outside?

but if we did, people would freak out, which is why we don't use the metric system. yet americans always put down mexican immigrants because "they don't learn our language. if i went to another country, i'd learn their language," yet you're too lazy to learn another way to measure distance or temperature?? yeah, sure. ok, a little tangent there.

2006-11-09 13:53:51 · 9 answers · asked by Anonymous in Weather

i need help wit 1 problem on my homework plz help

it says:
The ages of three brothers are consecutive integers(in order). The sum of their ages is 27. How old is each of the brothers?

plz help i forgot how to do it

2006-11-09 13:53:33 · 10 answers · asked by wen godzilla 2 in Mathematics

2006-11-09 13:53:27 · 3 answers · asked by Anonymous in Chemistry

Just Help me in discussing the effects of mass and air resistance to "Gravitational Acceleration". Thanks

2006-11-09 13:53:15 · 4 answers · asked by Anonymous in Physics

2006-11-09 13:50:50 · 5 answers · asked by wiktoria 1 in Chemistry

i mean like whhat's the difference between a pharmacist, pharmacologis, pharmaceutical. also what type of degrees are there for pharmacology, schools and jobs for pahrmacologist??/

2006-11-09 13:48:52 · 4 answers · asked by mike 1 in Medicine

2006-11-09 13:48:51 · 4 answers · asked by divineles 1 in Zoology

i cant remember all the steps exactly for diviosion so i need help...when i do division, i just sorta like naturally do it without thinking and i cant remember stuff like why u have to do that and crap like that.....HELP! I want her to b the smartest person the class cuz there's an annoying idiot who's in her class and is smart i guess and steals her ideas...

2006-11-09 13:46:06 · 4 answers · asked by Anonymous in Mathematics

2006-11-09 13:44:44 · 6 answers · asked by yagermon_10 1 in Mathematics

I work in the private sector and find my work so mundaine and really boring. I have challenging projects, but they are not personally fulfilling. I am not interested in going back to school at this time. I am an entreprenuer at heart, and live in a medium size town. Please help with ideas.

2006-11-09 13:44:33 · 3 answers · asked by engineerd 1 in Engineering

2006-11-09 13:41:32 · 3 answers · asked by Anonymous in Medicine

What is 2+28-65+48+99,002,456,486+1-87-998

2006-11-09 13:39:09 · 10 answers · asked by Austin E 1 in Mathematics

A 1000kg car racing up a mountain road runs out of gas at a height of 35m while traveling at 24m/s. The driver shifts into neutral and coasts onward. Neglecting all frictional losses.

1.Will he clear the 65m summit?


2. His brakes fail; at what speed will he reach the bottom of whichever side of the mountain he rolls down?

2006-11-09 13:38:25 · 3 answers · asked by Shane W 1 in Physics

Imagine there are 25 different species of protists living in a tide pool. Some of the species reproduce both asexually and sexually, and some of them can only reproduce asexually. Over the course of a year, the average water temperature of the tide pool increases significantly. Which species is more likely to thrive in the changing enviorment?

2006-11-09 13:36:38 · 5 answers · asked by megan6288 1 in Biology

2006-11-09 13:36:27 · 4 answers · asked by tkachuk51 3 in Chemistry

can someone explain to me this reaction and if there are anymore other reactions like this, and how to identify if the product will be something diffrient? does the product have to do with the fact that is is being burned and its not just yielding the product or what !?!?

2006-11-09 13:33:52 · 4 answers · asked by M P 2 in Chemistry

Any help? Thanks.

2006-11-09 13:33:28 · 5 answers · asked by Faith 1 in Mathematics