Science & Mathematics - 31 December 2007

Okay, science lovers, it's almost time for a new year to begin, and I want to know...what questions do you hope to never see in the science category in 2008 (or any other year)?

My vote goes to "Why is the sky blue?" Whaddaya think, sirs?

2007-12-31 07:00:00 · 4 answers · asked by Lucas C 7 in Other - Science

We've all heard politicians allude to the "Great State of California" or the "Great State of Texas", which begs the question: are there any states that are not "great states" and if so which are they?

2007-12-31 06:52:02 · 7 answers · asked by Anonymous in Geography

i have a meade etx 125 telescope i also have 126 2x barlow lens but any body know any Meade 1.25" Series 5000 2x TeleXtender what is different those both barlow lens? and they also have Meade 1.25" Series 5000 3x TeleXtender too and also what is different series 5000 2x and 3x? did any body know? because i am trying to get the serious 5000 just need to know what is different all 3 barlow lens

2007-12-31 06:51:07 · 2 answers · asked by bruceleenjackiechanmpls 1 in Astronomy & Space

2007-12-31 06:50:38 · 4 answers · asked by robzr6 1 in Physics

-9/7

plz explain

2007-12-31 06:48:53 · 11 answers · asked by Bloo 2 in Mathematics

thomas sedan gets THREE more than THREE times the amount of miles to the gallon than camrons sport utilty SUV. if the SUV gets TWELVE miles per gallon how many miles per gallon does the sedan get?



A. n= 3(12) +3

B. n= 3 (12)-3

C. 3n - 3=12

D. 3n +3=12

2007-12-31 06:47:10 · 7 answers · asked by Anonymous in Mathematics

==>if u think u can help, plz help answer the questions below <==
A)can a seed germinate in soil if it’s place upside down?
B)can bean seed grow without their cotyledons?
C)can another food source take the place of the cotyledons?

==> thnx :D <==

2007-12-31 06:40:50 · 2 answers · asked by gigi 2 in Botany

Suppose one painter can paint an entire house in twelve hours, and the second painter takes eight hours. How long would it take the two painters to paint the house together?

1. Work:: ______ x Rate:: ______ = Work Done:: ____
2. Work:: ______ x Rate:: ______ = Work Done:: ____


Answer: ___________

does that make sense???
on my worksheet it has it in boxes but I'll try doing it in boxes if it helps.

here's the link
http://i8.tinypic.com/8b97h2b.jpg

2007-12-31 06:40:41 · 5 answers · asked by Anonymous in Mathematics

i am writing a piece to explain what global warming is

2007-12-31 06:38:18 · 2 answers · asked by drummr403 1 in Earth Sciences & Geology

If I get one wrong can you tell me the right answer and maybe the steps you took to get there, thank you.

GIVE EACH ABSOLUTE VALUE

i= imaginary number
I...I absolute value brackets

1.
I 8 - 6i I
A: square root of 28

2.
I -1 I
A: 1

3. I -12 + 22.5i I
A: square root of 362.25

4.
I 19i I
A: 19

ADD EACH PAIR OF COMPLEX NUMBERS

5. ( 2 + i ) + (-3 + 2i)
A: -1 + 3i

6.
( -5 + 4i ) + 3
A: -2 + 4i

7.
( 6 - 3i ) + ( -4 - 2i )
A: 2 + 5i

GIVE EACH ABSOLUTE VALUE

8.
I 15 + 7i I
A: square root of 274

9.
I -2 - 6i I
A: 2i times the square root of 10

10.
I square root of 8 - i times the square root of 4 I
A: Can you show me the steps on how you got this one, thx

11.
I 0.2 + 0.8i I
A: square root of .68

12.
I -14 I
A: 14

13.
I -3.6i I
A: 3.6

14.
I 20 + 21i I
A: 29

15. I -30 - 5.5i I
A: 30.5

ADD EACH PAIR OF COMPLEX NUMBERS

16.
( 3i ) + ( 8 )
A: 3i + 8

17.
( -4 - 3i ) + ( 2 - 2i )
A: -2 - 5i

18.
( 3 + 3i ) + ( 3 - 3i)
A: 6

19.
( 2 + 3i ) + ( 3 + 2i )
A: 5 + 5i

2007-12-31 06:38:00 · 3 answers · asked by Anonymous in Mathematics

For a minute, I thought it was sea-floor but apparently I am wrong.. I really am wondering where they happen

2007-12-31 06:35:11 · 4 answers · asked by Love...love....love... 3 in Earth Sciences & Geology

I have a project and need some minerals and their uses. This would be much appreciated!

2007-12-31 06:27:55 · 2 answers · asked by shortsinkerdx1@sbcglobal.net 2 in Earth Sciences & Geology

X = 2, 3i, -3i

I don't know what I'm susposed to do.

2007-12-31 06:25:57 · 6 answers · asked by Anonymous in Mathematics

I know Ohio, Oregon, Mexico, NY, NC & SC and we all know Florida.

2007-12-31 06:23:30 · 20 answers · asked by j_emmans 6 in Geography

2007-12-31 06:16:51 · 13 answers · asked by Anonymous in Physics

In all my higher physics textbooks, the U.K mains voltage is quoted as being 230V. However, I had always thought that it was 240V. Who is correct?

2007-12-31 06:15:51 · 12 answers · asked by robzr6 1 in Physics

1. Replace the ? with a polynomial to make a true statement:
2x^-2 +x^-1 -3 =x^-2 (?)


2. Write in decimal form: 10 ^-4

a) 1,000
b) 100
c)0.00001
d) 0.0001

With question no.2 is there something wrong with the no. of zeros in the multiple choice or is it just me?


Thank you for your help.

2007-12-31 06:13:26 · 3 answers · asked by Noname 2 in Mathematics

2007-12-31 06:12:41 · 27 answers · asked by I dont know 4 in Geography

Tidal charts seem to confirm it, at least on the East Coast. Am I right?

2007-12-31 06:08:13 · 3 answers · asked by Brian S 2 in Earth Sciences & Geology

...and reverse it.
However, if there are objects/bodies beyond our viewing range, how can we be sure about precisely dating the Big Bang? (Hopefully this makes sense). In other words, if we're unsure of the size of the universe, how can we use the rate of expansion to determine age?

Also, is it assumed the rate of expansion is (and has always been) constant?

Thx.

2007-12-31 06:05:07 · 7 answers · asked by M L 2 in Astronomy & Space

whithout the help of humans? in the wild? i was wondering.

2007-12-31 06:04:52 · 5 answers · asked by ♥IMO♥ 2 in Zoology

im an indigo child.. and im in highschool.. i hate my classes and im just not interested in trying to learn stuff im not interested in.. i hear this happens to indigo children.. what can i do to help me try to be interested in certian subjects so i can pass my classes???

2007-12-31 06:03:55 · 12 answers · asked by Millie Y 1 in Other - Alternative

2007-12-31 06:02:52 · 3 answers · asked by hpfan 1 in Zoology

Had to put it here for you all to see.

It will be coming on the History Channel.

Finally we will be getting answers that we already know.....hope there are some we did not know about.

I wonder if they will also tell about the USO?

2007-12-31 05:56:44 · 8 answers · asked by LandOfMisty 5 in Paranormal Phenomena

2007-12-31 05:56:42 · 1 answers · asked by Emily M 1 in Botany

If you could create something that would be beneficial for our society what would you invent? Be realistic :)

2007-12-31 05:55:07 · 17 answers · asked by Ivanna 2 in Other - Science

What should one do when a magic becomes too great for one to handle? When the stem of the magic is natural, but it spirals into nothing but hate and destruction, but is too in-routed to a person - to a living being - to ever destroy?

2007-12-31 05:54:15 · 16 answers · asked by Pebbles 5 in Other - Alternative

The idea of numbers being in a loop has always interested me. I first began thinking about this when trying to understand tan90 as when it appraches from the left it tends towards positive infinity and as it approoaches from the right it tends towards negative infinity. I know my hypothesis is totally abstract but then again is infinity itself and mathematics in general abstract. This notion first began when reading about a closed universe and thought that if it is theoretical for a universe to be closed why not the number system that defines it. I imagine the numbers zero and positive/negative infinity as being different poles on a sphere. where positive infinity and negative infinity are a whole circumference apart from each other but are also at the same point.

2007-12-31 05:54:03 · 13 answers · asked by Anonymous in Mathematics

2007-12-31 05:52:50 · 2 answers · asked by Cathy s 1 in Astronomy & Space

^^ there ya go.

2007-12-31 05:52:40 · 2 answers · asked by Anonymous in Other - Science