Science & Mathematics - 11 December 2007

is it cooling the oceans rapidly?

2007-12-11 11:56:01 · 15 answers · asked by jojo b 1 in Earth Sciences & Geology

When the same block of ice is raised the same vertical distance by pushing it up a 6.67 m long inclined plane, only 45 N of force is required. Calculate the work done to push the block up the plane.
J

2007-12-11 11:55:21 · 1 answers · asked by Anonymous in Physics

What are the basic sources of genetic variation? Which are present in asexually reproducing populations?

Thanks for your help!

2007-12-11 11:54:42 · 1 answers · asked by ? 3 in Biology

i have to found the hyphothesis, proceduce, materials, result, conclutions and ect......so please help me out. thanks

2007-12-11 11:52:49 · 4 answers · asked by im_iz bust it baby>3 2 in Earth Sciences & Geology

10 steps...
The final step much be inflating a balloon. It can pop, it just has to go past 6 inchs in diameter.
THANKS.

2007-12-11 11:46:15 · 4 answers · asked by summahhh! 4 in Physics

I need these two factored quickly please :O

x^2+9 and a^2-100

it's like a square and a cube so their confusing me and i have to go test in an hour

5 stars to whoever gets it first

2007-12-11 11:43:11 · 2 answers · asked by tentoesdown 2 in Mathematics

help please

2007-12-11 11:42:13 · 7 answers · asked by kay babez fresh kidd. 1 in Mathematics

2007-12-11 11:40:43 · 5 answers · asked by Anonymous in Mathematics

2007-12-11 11:35:30 · 7 answers · asked by Anonymous in Astronomy & Space

Thanks.

2007-12-11 11:35:07 · 1 answers · asked by werdsoccer11 2 in Physics

i really need help with these. if possible explain it terms that relatively make sense.. thanks

2007-12-11 11:33:29 · 1 answers · asked by henry 2 in Mathematics

That you simply have no interest in them?
if you have no respect for them? how is it possible to make them understand?
Espcially if they're messing with your mind, playing mind games.

2007-12-11 11:32:09 · 28 answers · asked by Anonymous in Parapsychology

Hey I need help listing the structures that food passes through when eaten by an earthworm? In order front to back not listing ones it doesnt go through.
Thanks a lot!

2007-12-11 11:31:05 · 3 answers · asked by Anonymous in Biology

a 95 kg fullback, running at 8.2 m/s, collides in midair with a 128 kg defensive tackle moving the opposite direction. both players end up with zero speed.

[a] what is the change in the fullback's momentum?
[b] what is the change in the tackle's momentum?
[c] what was the tackle's original momentum?
[d] how fast was the tackle moving originally?


please show steps. @__@

2007-12-11 11:30:47 · 1 answers · asked by Anonymous in Physics

2007-12-11 11:29:40 · 1 answers · asked by wackyvorlon 3 in Physics

2007-12-11 11:28:16 · 5 answers · asked by Tom 2 in Astronomy & Space

what are the 3 possible shapes of the universe? what shape is indicated by the microwave backround radiation?

2007-12-11 11:23:57 · 3 answers · asked by sarahlizjo 2 in Astronomy & Space

2007-12-11 11:23:31 · 8 answers · asked by mary q 1 in Geography

2007-12-11 11:19:51 · 4 answers · asked by Anonymous in Chemistry

are you sick of shoveling do you hate the snow?
well my invention takes care of all that! under the pavement is a hole line of coils that is heated up using solar power energy! once it snows just turn it on and in a matter of minutes BAM! its gone :D once the snow melts it flows dow to the end of the drive way and goes down a drain so it isnt all icey and it is properly disposed of.its good for side walks driveways and porches safe to walk on and for kids and pets! (this is not a real product) just an idea!

2007-12-11 11:13:32 · 4 answers · asked by Rebecca R 1 in Other - Science

I need help on this problems. 10 grams of lead 2 nitrate is dropped into a solution made from .25 moles potassium iodide. Keeping in mind all nitrates are soluable how many grams of the precipitate will be made?
Hint: solve for each reactant # of grams of precipitate first!


What does this all means and how do I do it. Thanks for helping me

2007-12-11 11:12:32 · 2 answers · asked by Anonymous in Chemistry

...... the title says it all lol

2007-12-11 11:12:31 · 7 answers · asked by Anonymous in Engineering

Calculate the PH?
[H+] = 4.78 x 10^-2M
pOH = 4.56
[OH-] = 9.74 x 10^-3M
[H+] = 1.24 x 10^-8M

can you show me step by step for them be cause i do not understand correctly how to do it.

2007-12-11 11:10:26 · 2 answers · asked by Bradley H 1 in Chemistry

http://www.cnn.com/2007/TECH/space/12/11/solarsystem.edge.ap/index.html

2007-12-11 11:09:37 · 5 answers · asked by Maple Sugar 4 in Astronomy & Space

I hear it alllll the time and I'm not sure what city it is referring to. I just moved to Manhattan, KS like 4 months ago, and first I was thinking it meant Manhattan, but I'm not sure now....

2007-12-11 11:09:10 · 1 answers · asked by scape.squad.story 3 in Geography

i need in a transit/ level. There are many features and before i shell out bucks i just wanna make sure i get what i need. thanks

2007-12-11 11:08:46 · 4 answers · asked by metroactus 4 in Other - Science

1. Calculate the average atomic mass for gallium if 60.00% of its atoms have a mass of 68.926 amu and 40.00% have a mass of 70.925 amu.

2007-12-11 11:06:34 · 3 answers · asked by Chelsey 5 in Chemistry

Also i couldn't get this one to work out either.
What mass of air is contained in 5.36x10^5 L volume at .98 atm and 3.0x10^1 degree Celcius? The molar mass of air is 29.0 g/mol.
thanks

2007-12-11 10:55:27 · 2 answers · asked by flo_town02 1 in Chemistry

2007-12-11 10:55:11 · 8 answers · asked by Anonymous in Mathematics

2007-12-11 10:52:51 · 5 answers · asked by Anonymous in Biology