Science & Mathematics - 5 December 2007

does someone know where the church hill river is I know its some where in Canada

2007-12-05 15:07:34 · 2 answers · asked by Anonymous in Geography

This is just a thought excercise. There is not right or wrong answer. Best story gets best answer.

2007-12-05 15:07:12 · 16 answers · asked by SYSV1RUS 3 in Astronomy & Space

I understand Riemann sums but dont see the connection to integral calculus

2007-12-05 15:07:03 · 4 answers · asked by Anonymous in Mathematics

Is it possible to rearrange the molecules in a substance? Could you change the amount of protons/electrons a atom has? Are there any occurrences of stuff like this in nature?

2007-12-05 15:06:20 · 3 answers · asked by Anonymous in Chemistry

1) In which of the following cases will the images have similar properties: concave mirror, convex mirror, concave lens, convex lens?

2) Can you get an image on the screen when the distance between the object and the mirror or lens is less than the focal length? explain.

Thanks!

2007-12-05 15:04:30 · 1 answers · asked by La_rr 1 in Physics

I need to simplify this using factoring: sec3x – sec2x – secx +1

This is read as: Secant cubed x minus secant squared x minus secant x plus 1.

Need to get it to most reduced/simplified form USING FACTORING.

Thank you; very much appreciated.

2007-12-05 15:02:57 · 0 answers · asked by Thoreau 1 in Mathematics

It really sucks when you get old, you lose your looks and abilities. You think we will ever slow or stop the process? Here is a couple pics of what happens to you.

http://www.imdb.com/gallery/mptv/1294/Mptv/1294/1867_0016.jpg.html?path=gallery&path_key=0058791

http://www.imdb.com/gallery/granitz/1188/Events/1188/LindaEvans_Vespa_179988.jpg.html?path=pgallery&path_key=Evans,%20Linda%20(I)

2007-12-05 15:02:55 · 4 answers · asked by Mothra 1 in Biology

If a galaxy the size of the Milky Way (about 30 kpc in diameter) was placed at various distance, what would its angular size appear to be? Express the answer in arc minutes. (can you please show work) Thank you :)
a. At 10 Mpc?
b. At 1000 Mpc?

2007-12-05 15:01:26 · 3 answers · asked by underarmour95 1 in Astronomy & Space

e.Who is good who is bad.For those who consider?

2007-12-05 14:57:57 · 2 answers · asked by Anonymous in Astronomy & Space

using the same wire that is used for wiring up a house for elctricity, what is the best way to rig it up so I can plug it into the outlet without blowing the circuit breaker? AND if I am using a three foot iron rod, how do I tell which end is which polarity? and are there instruments for measuring guass?

2007-12-05 14:57:10 · 4 answers · asked by dustandrags 2 in Engineering

i have to write a report on ionized lifters, and i was wondering how do they work. what is the physics behind them? please be as detailed as possible, or point me to the right direction to find information about them.

2007-12-05 14:57:07 · 2 answers · asked by Anonymous in Physics

Wyh does the Nile river in Africa go up north instead of going down south like other river do? Please help!!!!

2007-12-05 14:55:11 · 14 answers · asked by blondie74 2 in Geography

"grading key: resonable aanswer? did you ude evidence?"

"SCIENCE IS A NEVER-ENDING PROCESS"

2007-12-05 14:54:03 · 2 answers · asked by Cassie P 1 in Earth Sciences & Geology

I was wonder if the United States had a secret space program that was more advanced than NASA.

2007-12-05 14:52:02 · 13 answers · asked by SYSV1RUS 3 in Astronomy & Space

2007-12-05 14:51:35 · 1 answers · asked by Anonymous in Engineering

scientific principles/concepts that were espoused in the first Jurassic Park film from 1993 are plausible? Like, when the scientists extracted the blood from fossilized ancient mosquitos and then were able to do this and that and this and that and then come up with dinosaurs. Spielberg did make it almost look plausible. Now, I'm not gullible enough to actually think that this could work, but I am a bit of a dreamer/optimist. In theory, could any of that pseudo-science work? And could we in fact bring back an extinct species of animals that way?

2007-12-05 14:51:26 · 3 answers · asked by Anonymous in Biology

I dont know what kind it is but here is the info:

Color: Moss green and gray
Streak: White
Luster: Dull Earthy like
Flouresence: Yes green dots
Double Refraction: No
Specific Gravity: 2.6 grams
Hardness: 5.5
Crystal System: Monoclinic
Cleavege: No
Fracture: Yes uneven
Magnetism: No
Chemical Test: No bubbles not carbonate

2007-12-05 14:50:28 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-05 14:48:44 · 1 answers · asked by Anonymous in Medicine

My dad was wondering and i don't really know the answer.

2007-12-05 14:47:03 · 5 answers · asked by DJsqaired 2 in Other - Science

At what rate is the volume of the snowball decreasing when the diameter is 8 cm?

2007-12-05 14:46:52 · 2 answers · asked by sara l 2 in Mathematics

neon signs employ neon in only one color: red. other gases are used in other colors. Neon was not even descovered as the first color in neon. it was mercury (blue).

i got this interpretation from this site:
http://inventors.about.com/od/qstartinventions/a/neon.htm

2007-12-05 14:46:35 · 3 answers · asked by white_maned_dragon 1 in Chemistry

solve?

2007-12-05 14:45:10 · 3 answers · asked by mikegemmati 1 in Mathematics

What does the 2.7 Kelvin microwave background tell us about some of the currently fashionable cosmological theories?

2007-12-05 14:43:54 · 2 answers · asked by Anonymous in Astronomy & Space

How can you tell and what characteristic of the volcano tells you .

2007-12-05 14:43:15 · 8 answers · asked by babyghurl_4u 1 in Earth Sciences & Geology

so i missed the day when we learned about tan. and today i have no idea what the teacher was talkin about in class can anyone like explain it to me

2007-12-05 14:42:23 · 2 answers · asked by mikey 1 in Mathematics

2007-12-05 14:41:35 · 8 answers · asked by ashh 1 in Weather

my 4th grade son has this as home work & I think its multiply he thinks its add and my 9th grader and 19 year old never had that (so they say)please help....thanks

2007-12-05 14:41:03 · 3 answers · asked by need it fixed 1 in Mathematics

2007-12-05 14:40:46 · 6 answers · asked by Jose Q 2 in Botany

its for biology

2007-12-05 14:38:40 · 1 answers · asked by Taylor 1 in Botany

its like,..eventually those hu know math are regarded as smart people...even though they wud do so poor in other subjects

2007-12-05 14:35:26 · 13 answers · asked by AskMe 2 in Mathematics