Science & Mathematics - 31 December 2006

2006-12-31 11:53:23 · 8 answers · asked by Anonymous in Astronomy & Space

Nobody has any evidence....

2006-12-31 11:51:19 · 15 answers · asked by Anonymous in Astronomy & Space

2006-12-31 11:51:15 · 1 answers · asked by Yea Yea 4 in Astronomy & Space

The Nature Club members are on a hike and walk at an average speed of 5km/h. The lunch committee follows an hour later walking at 9km/h. How far from camp will the luch committee catch up to the other club members.

2006-12-31 11:48:01 · 2 answers · asked by Cutie 4 in Mathematics

I know eddy currents will create a counter EMF but will it also act as a transformer secondary with real current? ( the copper tube will not be insulated so it will short itself out)

2006-12-31 11:47:23 · 4 answers · asked by DH 1 in Engineering

How do you know when a molecule a neutral in order to calculate its oxidation number?

2006-12-31 11:44:28 · 3 answers · asked by Luciya 2 in Chemistry

there is no non political answer !

2006-12-31 11:39:08 · 10 answers · asked by Anonymous in Astronomy & Space

hey everybody this is arobb i need and answer to my question because me and my friend is doing a project on the earth so i really need this answer

2006-12-31 11:36:36 · 2 answers · asked by Anonymous in Physics

This is confusing me! Please Help!

Solve the following systems of equations algebraically.

a.
5x-y=5
3x-5y=-63

b.
a-b+3c=-8
2b-c=15
3a+2c=-7

2006-12-31 11:27:28 · 10 answers · asked by Brad 1 in Mathematics

2006-12-31 11:19:32 · 11 answers · asked by Anonymous in Earth Sciences & Geology

2006-12-31 11:13:54 · 6 answers · asked by ¦w¤å ¶ 1 in Astronomy & Space

Hi,
what is 1/2 of 1/1/4 cups?
Thanks,
trebrk

2006-12-31 11:12:46 · 8 answers · asked by trebrk12 1 in Mathematics

How far is it from the bottom of Kansas to the top of Texas? How many miles? Like say Wichita, Ks to Dallas, Tx, how many miles is that?

2006-12-31 11:10:37 · 13 answers · asked by ellisMC 1 in Mathematics

A solution contains the ions Ag+, Pb2+, and Ni2+. Dilute solutions of NaCl, Na2SO4, and Na2S are available to separate the positive ions from each other. In order to effect separation, the solutions should be added in which order? A) Na2SO4, NaCl, Na2S B) Na2SO4, Na2S, NaCl C) Na2S, NaCl, Na2SO4 D) NaCl, Na2S, Na2SO4 E) NaCl, Na2SO4, Na2S

Answer and Explain why! Thanks.

2006-12-31 11:10:15 · 2 answers · asked by sunneyzwang@sbcglobal.net 2 in Chemistry

2006-12-31 11:05:44 · 10 answers · asked by satishfreeman 5 in Physics

2006-12-31 11:01:26 · 9 answers · asked by everest b 1 in Geography

2006-12-31 10:58:14 · 18 answers · asked by sharon 1 in Chemistry

2006-12-31 10:55:48 · 4 answers · asked by peter 1 in Engineering

2006-12-31 10:51:50 · 28 answers · asked by Anonymous in Astronomy & Space

Preferably 8 significant figures or more. I want state vectors for the sun, all planets out to Neptune (including Earth), all Near-Earth Asteroids (especially PHAs) and the largest of the main belt asteroids. I want to do my own calculations for Earth encounters with Potentially Hazardous Asteroids.

2006-12-31 10:51:39 · 2 answers · asked by Anonymous in Astronomy & Space

Simplify and the y-6 is all under the 3.

Thanks!

2006-12-31 10:48:18 · 7 answers · asked by Sally 2 in Mathematics

2006-12-31 10:45:38 · 11 answers · asked by Anonymous in Zoology

2006-12-31 10:44:49 · 2 answers · asked by amskeezbaby (; 2 in Chemistry

This is the question:
Adrenaline is the hormone that triggers release of extra glucose molecules in times of stress or emergency. A solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49°C. What is the molar mass of adrenaline?
I found the moles of CCl4 [36 g/154 g-mol CCl4]. Then I did .64 g adrenaline/moles of CCl4, but I got the answer wrong.
So now I'm thinking... should I find the chemical compostion and formula weight of adrenaline and then just do .64 g adrenaline/moles adrenaline? Is the CCl4 irrelevant?

2006-12-31 10:42:16 · 3 answers · asked by SDesign 1 in Chemistry

2006-12-31 10:41:53 · 12 answers · asked by N_law 5 in Geography

2006-12-31 10:41:52 · 21 answers · asked by everest b 1 in Geography

2006-12-31 10:38:47 · 9 answers · asked by HEY boo boo 6 in Astronomy & Space

Pi bonding occurs in each of the following species except?
CO2
C2H4
CH4
CN-
C6H6

2006-12-31 10:35:31 · 2 answers · asked by supergerm13 2 in Chemistry

1.is it true that there is going to be a meteorite that hit the earth in2033?
2.or is it true one is going to hit in 2110 or 2114?
3.which one is true?
4.meteorites have landed before,why havent those killed us?
5.is it true thousand of years later after one of the meteorites we will all be extinct?
6.would we all be safe if we hid in an underground tunnel when the meteorites came?


thanx!im kind of worried!oh wait i know i wont live until2110 or 14!but most likely i will until 2033!yikes

2006-12-31 10:32:47 · 6 answers · asked by <-(‾`v ‾)-> 2 in Astronomy & Space

2006-12-31 10:31:08 · 1 answers · asked by myrnajgrist1 1 in Earth Sciences & Geology