Science & Mathematics - 15 September 2007

please help

2007-09-15 10:14:02 · 9 answers · asked by Kadie k 1 in Mathematics

the work required to strech the spring from 10 to 20cm is more than required to strech it from 0 to 10cm, according to Hookes Law

how much does it take to strech from 0 to 10?

how much does it take to strech fom 10 to 20?

2007-09-15 10:08:33 · 3 answers · asked by Pascal 4 in Physics

I just had a MATH test on firday and this was a question that tricked me. I said they would be factors of 24. Am i right? Please help!

2007-09-15 10:05:42 · 8 answers · asked by babigurl 2 in Mathematics

The acceleration of gravity is 9.8 m/s^2. If the ball remains in the air for 5.5 seconds, how high does it rise?

2007-09-15 10:00:51 · 1 answers · asked by kp86 2 in Physics

say the moon hit the U.S.A is there a chance to live? or would we die before we could run?

2007-09-15 10:00:05 · 28 answers · asked by J.D. is away 4 in Astronomy & Space

Which of the following would be found in an ecosystem?

rocks
sunlight
water
animals and plants
bacteria
all of the above
What do we call the living part of an ecosystem?

a community
the habitat
a natural resource
a family
population

For each of the items in the following list, decide if they are biotic or abiotic. In the blank, enter A for Abiotic and B for Biotic.
1. Rocks
2. Ferns
3. Snake
4. Waterfall
5. Park Bench
6. Dragonfly
7. Soil
8. Bacteria

Entry 1:

Entry 2:

Entry 3:

Entry 4:

Entry 5:

Entry 6:

Entry 7:

Entry 8:

2007-09-15 09:59:49 · 1 answers · asked by MiSs MoM 2 in Earth Sciences & Geology

(3/3) of 600=

2007-09-15 09:59:48 · 20 answers · asked by Anonymous in Mathematics

shouldnt protons repel?

2007-09-15 09:59:42 · 3 answers · asked by wik 2 in Physics

The title says it all. What are the 2 hemispheres that Montana is in? You know north or south, and east or west. Please answer my question. Thanks...

2007-09-15 09:58:53 · 9 answers · asked by Kelly E 1 in Geography

also, who should them and why? Like on what forms are abbreviations allowed?

2007-09-15 09:50:11 · 3 answers · asked by crismarie 4 in Medicine

2007-09-15 09:44:29 · 3 answers · asked by Doug Saunders 1 in Geography

2007-09-15 09:43:01 · 3 answers · asked by Hernan A 1 in Mathematics

How do I find the derivative of f(x) = 10x - 1.86x^2 when x=a. Do I need to plug the "x" with "a"? Any help is appreciated. Thanks.

2007-09-15 09:38:43 · 4 answers · asked by shih rips 6 in Mathematics

2007-09-15 09:35:52 · 11 answers · asked by Anonymous in Astronomy & Space

and can anybody tell me a location were i can find a picture of 30,000 years ago eating food.

2007-09-15 09:33:53 · 10 answers · asked by Anonymous in Astronomy & Space

Alkanes are hydrocarbons, which means they contain only hydrogen and carbon atoms in their bonding. Now, the electronegativity difference between the C-C bonds and the C-H bonds is very small. This would make the electrons between the atoms loosely held and thus weaker bonds, right? So because these bonds are weak, wouldn't that make the molecule reactive because the bonds are easier to break??

2007-09-15 09:31:44 · 2 answers · asked by Anonymous in Chemistry

2007-09-15 09:26:00 · 6 answers · asked by Anonymous in Physics

2007-09-15 09:22:53 · 5 answers · asked by Megegie 5 in Earth Sciences & Geology

I can't figure it out! I solve something,then I don't know what to do...
{x^2 + y^2 + xy=91
{x+y+sqrt xy=13

2007-09-15 09:19:28 · 4 answers · asked by Ana 3 in Mathematics

Angle D in quadrilatral ABCD is a right angle and diagonal AC is perpendicular to BC. BC = 20, m a. find AC to the nearest integer
http://www.crunchyroll.com/user/babiixjen_x3/photos/2317748