Science & Mathematics - 17 December 2006

I am thinking that energy from the sun runs through power lines and eventually makes it's way to certain things, but I really have no idea!

2006-12-17 12:16:23 · 4 answers · asked by Tinkerbellpixie11713 2 in Engineering

2006-12-17 12:15:40 · 6 answers · asked by Lawrie -old salt 1 in Astronomy & Space

i need something a bit more specific than "follow the sound"

2006-12-17 12:15:24 · 3 answers · asked by edith c 1 in Other - Science

I've searched a lot of places and I can find lots of things that he did that required math but not anything detailing what he did to advance math. Any help would be appreciated. Thanks.

2006-12-17 12:14:48 · 4 answers · asked by bkc99xx 6 in Mathematics

2006-12-17 12:14:24 · 9 answers · asked by Anonymous in Mathematics

I cut out a triangle , now what? this is for extra credit in Geometry

2006-12-17 12:13:57 · 3 answers · asked by Anonymous in Mathematics

I've always wondered after reading Huck Finn how he flowed to the North. Doesn't the Mississippi move the opposite direction?

2006-12-17 12:13:40 · 9 answers · asked by pollomallet 1 in Geography

2006-12-17 12:13:11 · 11 answers · asked by barbara r 1 in Geography

The bases of isosceles trapezoid ABCD are 17 cm and 25 cm and its base angles (angles BAD and CDA) are 45 degrees. Determine the height of the trapezoid.

I need this by tommorrow morning. Thanks!

2006-12-17 12:11:10 · 4 answers · asked by florida2georgiaguy 2 in Mathematics

It's definitely not just the angle from which it appears in the diagram. The lines connecting the stars seem to make completely different shapes from one website to the next.

2006-12-17 12:11:01 · 6 answers · asked by Surfmelv 1 in Astronomy & Space

i look at the universe and life as something different from most people.i dont believe in any supreme being,even though i was born into a christian family,i didnt really go to church.i dont even remember my childhood really,and i think this is an important part of the reason why i am how i am today. when i look at myself in the mirror i dont see myself as "me", i see myself as just a human in the universe, when i look at my hand and move it,i think about the messages my brain is sending to my hand to make it move and i think about my veins and blood running through it which is keeping me alive. i just look at life in terms of "science". i see that religion and government are totally man-made and are not really important when i think about it.as i sit down here now,typing this,i thihnk about myself in the UNIVERSE.and that the world is going on beyond my present vision.and RIGHT NOW there are things goin on in OTHER SOLAR SYSTEMS and galaxies that could hold civilizations.RIGHT NOW.sigh

2006-12-17 12:08:58 · 12 answers · asked by Anonymous in Astronomy & Space

19 - 3n = - 2n

2006-12-17 12:07:47 · 8 answers · asked by salarian2001 2 in Mathematics

Hi i want to create a function like y=ax +b for example a = 2 and b=3. Now i want to input x and get y back. Can you please tell me how to do it? Thanks a lot

2006-12-17 12:04:32 · 1 answers · asked by Maverick 2 in Mathematics

how do we factor this are their any factors?
3x^4-4x^3-12x^2+2

2006-12-17 12:03:10 · 5 answers · asked by Anonymous in Mathematics

A pilot is flying from Thunder Bay, Ontario, to Dryden, Ontario, a distance of approximately 320 km. As the plan leaves Thunder Bay, it flies 20˚ off course for exactly 80 km. After flying off-course, how far is the plane from Dryden?

2006-12-17 12:02:33 · 3 answers · asked by thomasgraham880 1 in Mathematics

2006-12-17 12:01:11 · 14 answers · asked by Anonymous in Mathematics

Male pattern baldness is an example of:
a a trait inherited from both parents
b a body influenced trait
c a sex influenced trait
d defective meiosis

2006-12-17 11:57:39 · 5 answers · asked by georgia_gurl345 2 in Biology

I am looking for someone to try this problem to see what anwer they get. I have gotten several different answers . don't know if calulating wrong or what. thanks. here is the problem.. copied it form homework for you to read.

CLASSIC PROBLEM - A traveling salesman (selling shoes) stops at a farm in the Midwest. Before he could knock on the door, he noticed an old truck on fire. He rushed over and pulled a young lady out of the flaming truck. Farmer Brown came out and gratefully thanked the traveling salesman for saving his daughter’s life. Mr. Brown insisted on giving the man an award for his heroism.

So, the salesman said, “If you insist, I do not want much. Get your checkerboard and place one penny on the first square. Then place two pennies on the next square. Then place four pennies on the third square. Continue this until all 64 squares are covered with pennies.” As he’d been saving pennies for over 25 years, Mr. Brown did not consider this much of an award, but soon realized he made a miscalculation on the amount of money involved.
a) How much money expressed in dollars would Mr. Brown have to put on the 32nd square?
Answer:
Show work in this space




b) How much money expressed in dollars would the traveling salesman receive in total if the checkerboard only had 32 squares?
Answer:
Show work in this space




c) Calculate the amount of money necessary to fill the whole checkerboard (64 squares). How money expressed in dollars would the farmer need to give the salesman?
Answer:
Show work in this space

2006-12-17 11:57:35 · 6 answers · asked by SHERRY L 1 in Mathematics

2006-12-17 11:55:49 · 6 answers · asked by crabbygaby4 1 in Earth Sciences & Geology

2006-12-17 11:54:33 · 4 answers · asked by rowela c 1 in Geography

A main principle of genetics states that:
a organisms inherit double chromosomes from each parent
b organisms inherit a single copy of each gene from each parent
c the mother’s chromosomes produce a dominant outcome
d the number of chromosomes inherited from each parent varies

2006-12-17 11:53:17 · 2 answers · asked by georgia_gurl345 2 in Biology

I believe that sapphires (blue ones) normally have a small amount of copper, and rubies (red ones), chromium in them as "impurities", giving the colours.

2006-12-17 11:53:11 · 3 answers · asked by WOODPECKER 1 in Earth Sciences & Geology

2006-12-17 11:52:44 · 4 answers · asked by celticevening 1 in Mathematics

2006-12-17 11:52:04 · 6 answers · asked by Anonymous in Physics

2006-12-17 11:50:56 · 3 answers · asked by lolavonb 2 in Chemistry

2006-12-17 11:49:29 · 7 answers · asked by celticevening 1 in Mathematics

I did a Health & Safety Course some years ago and I am sure that we were told that water can be inflammable in the right situation!
If you spray a very very fine mist of water onto a flame it becomes inflammable.
This is because (I need a person who knows a bit on chemistry to answer this one) the chemical reaction and breakdown of the water???
I know this may seem a silly question but I 'think' I remember this right?
Any answers appreciated

2006-12-17 11:48:02 · 19 answers · asked by davie 2 in Chemistry

Why don't they just have it at the same time as us? Because that seems weird that in australia they are having summer in winter. I have often been wondering this because I was told this by my friend that australia has summer in december, but it should be winter in december!

2006-12-17 11:46:11 · 18 answers · asked by Anonymous in Weather

2006-12-17 11:45:53 · 3 answers · asked by Anonymous in Botany

Below is the image of this question AND it's correct answer. Could you please expand on WHY this would be the best choice?

Thanks alot!

http://i138.photobucket.com/albums/q271/Link3324/10.png

2006-12-17 11:45:42 · 2 answers · asked by standardstudent1 1 in Chemistry