Science & Mathematics - 25 January 2007

2007-01-25 12:39:32 · 4 answers · asked by joe b 1 in Mathematics

2007-01-25 12:39:22 · 9 answers · asked by Kevin_Mart13 3 in Astronomy & Space

2007-01-25 12:38:45 · 8 answers · asked by Anonymous in Astronomy & Space

what is the difference between gram-positive bacteria and gram-negative bactria?

2007-01-25 12:37:15 · 3 answers · asked by Anonymous in Biology

can some one explain step by step how to factor 2x^2+3x-9

(2x^2 i mean this to be 2x squared)

2007-01-25 12:35:05 · 11 answers · asked by Anonymous in Mathematics

If parallel universes do exist, as is suggested by theories proposed in recent times....and there are an infinite number of such universes, each exactly the same as ours with only very slight differences, then isn't it reasonable to assume that somewhere.... sometime.... somehow.... Santa-Clause actually exists!

2007-01-25 12:34:39 · 18 answers · asked by THINKER 2 in Astronomy & Space

2007-01-25 12:33:12 · 10 answers · asked by Moesha Timber 1 in Astronomy & Space

Consider a hypothetical situation in which spatial (geographic) isolation leads to the formation of a new species. In 5 separate sections, use the following terms to describe the scenario from beginning to end.

1. Spatial isolation
2. Founder effect, bottleneck
3. Gene flow
4. Natural selection
5. Reproductive isolation, biological species

does anyone know? i have no clue. =[

2007-01-25 12:32:48 · 2 answers · asked by JoAnna 2 in Zoology

2007-01-25 12:32:32 · 14 answers · asked by jstn_le 1 in Earth Sciences & Geology

The 2003 commencement exercises at Norwich University graduated 278 students. There were about 4500 guests attending the ceremony. What fractional part of all the people at the ceremony were guests?

2007-01-25 12:31:45 · 9 answers · asked by JennaL 3 in Mathematics

2007-01-25 12:31:42 · 5 answers · asked by Need engineering help 1 in Engineering

2007-01-25 12:31:32 · 3 answers · asked by Anonymous in Astronomy & Space

A swimmer is 1.8 meters tall. She dives into the pool and swims her race with a constant acceleration of .25m/^2. How long does it take her to pass the backstroke flags that are 20 meters away?


When I did it, i got 13.2 seconds. Could someone who is good at physics please check it and see if i did it wrong? Thanks so much.

2007-01-25 12:30:47 · 6 answers · asked by Jane A 3 in Physics

[3 -1
-2 2 ]


[1 -1 0
1 0 -1
6 -2 -3]

2007-01-25 12:30:22 · 3 answers · asked by Need Help 2 in Mathematics

[3 -1
-2 2 ]


[1 -1 0
1 0 -1
6 -2 -3]

2007-01-25 12:30:11 · 1 answers · asked by Need Help 2 in Mathematics

Heh, haha. I came across this problem and thought I'd test you.

2007-01-25 12:29:37 · 8 answers · asked by Nowayman 1 in Mathematics

Anyone know how to go about naming carbohydrates such as D and L configuration. If you got any articull or link would be helpfull. Thanks a bunch.

2007-01-25 12:29:36 · 2 answers · asked by shkabaj 3 in Chemistry

Which of the following statments about a helium atom in the sun and helium atom on earth is false?

A. They are likey to have the same chemical properties.

B. They are likey to have similar physical propertise.

C. One will be five times more massive.

D. Neither one will be very chemically reactive.

2007-01-25 12:27:38 · 4 answers · asked by Anonymous in Chemistry

i need to build a telegraph for a report if no one knows how to build a telegraph how bout a steamer or a brake like a drag chute
help iz worth 3 quarters of my grade HELLPPPPPPPP!!

2007-01-25 12:26:47 · 2 answers · asked by Anonymous in Engineering

2007-01-25 12:25:59 · 8 answers · asked by Kevin_Mart13 3 in Astronomy & Space

.60Y=.20Y +100
Y= _______?

2007-01-25 12:25:33 · 8 answers · asked by DIP318 1 in Mathematics

is it base•length•width????
or what it is???

i need to know and quick!
if u may ^-^

2007-01-25 12:25:01 · 3 answers · asked by Freakazoid 2 in Mathematics

determine the better buy ....

8.2 oz of toothpaste for $2.99 or 6.4 oz toothpaste for $2.49 ????


plz answear this qestion plzzzzzzzz

and if u answear it i'm ganna pick u the best answear plzzzzzz.............

2007-01-25 12:24:07 · 10 answers · asked by Anonymous in Mathematics

2007-01-25 12:23:19 · 4 answers · asked by Anonymous in Physics

2007-01-25 12:22:59 · 3 answers · asked by love2shop 3 in Zoology

science hwk ugh

2007-01-25 12:22:41 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-25 12:22:37 · 1 answers · asked by Anonymous in Chemistry

2007-01-25 12:21:18 · 16 answers · asked by Anonymous in Engineering

2007-01-25 12:20:01 · 3 answers · asked by carol 1 in Engineering

is it water pollution or is it just global warming?

2007-01-25 12:19:55 · 5 answers · asked by quin h 1 in Earth Sciences & Geology