Science & Mathematics - 31 August 2007

List 8 adaptation on one animal

2007-08-31 11:47:07 · 2 answers · asked by Anonymous in Zoology

I'm trying to help my son solve a extra credit math problem, but am coming up totally stumped. Looking for some mathematicians to give some guidance here. I'm sorry about the formatting , but I haven't figured out a way to get it any better. L=Left R =Right * = the # that needs to be solved for. The dashed lines is my attempt to seperate the combinations. There are nine 3 digit combinations. Here's the problem.

The athletes training for the marathon all have combination locks on their lockers. Find the secret to figuring out the missing numbers for all of the combinations. Look carefully.

L R L--- L R L--- L R L---
12 9 5--- 7 8 *--- 11 * 6---

L R L--- L R L--- L R L---
10 5 *--- 4 16 *--- 3 * 18---

L R L--- L R L--- L R L---
8 9 *--- 2 14 *---- 13 7 *----

What numbers are missing from each combination. What is the secret, for all of them.



Any help will be much appreciated.

2007-08-31 11:45:16 · 4 answers · asked by nickfromct 3 in Mathematics

1.0974 x 10^7 m^-1 ...A scientist.. Who?

2007-08-31 11:43:13 · 3 answers · asked by *-whitz-* 4 in Physics

2007-08-31 11:42:41 · 4 answers · asked by Alexander 6 in Mathematics

Well I have heard that if your on birth control you should not take antibiotics because if can lessen the affects of the pill. Is this true? and if so which antibiotics can't i take?

2007-08-31 11:41:23 · 7 answers · asked by Jessica E 2 in Medicine

What are the accurate statistics of faith among the Swedish population? State your source, if possible.

2007-08-31 11:37:45 · 7 answers · asked by Purgatory 3 in Geography

2007-08-31 11:35:28 · 29 answers · asked by Anonymous in Biology

find domain given the function f

f(x) = sqr(25 - x^2)

f(x) = sqr(x^2 - 5x)

f(x) = sqr((3 - x) / (x + 2))

can any one show me steps / methods plz
thanks

2007-08-31 11:34:44 · 7 answers · asked by Oliver 2 in Mathematics

2007-08-31 11:33:53 · 4 answers · asked by Anonymous in Biology

2007-08-31 11:32:34 · 5 answers · asked by Anonymous in Medicine

2^1*2^(n-1)
Then
2^(n-1+1)
2n... many of you would understand this but what i don;t understand is where did multiply 2 go... it wasnt divided by 2 so its not neutralized ?? but somehow its not there and this must make sence.. to me it doesn't please explain..

2007-08-31 11:30:54 · 4 answers · asked by Anonymous in Mathematics

I am interested in buying an electric bike that has 2 batteries that opperate at 12v @ 10 amp hours. They are designed to work together to deliver 24v to a 450 watt (peak) motor at the front wheel. Unfortunately these are heavy SLA batteries, and I would like to replace them with state of the art Nanophosphate Litihium Ion batteries.

Now the kicker: I can only find 36v versions for use in DeWalt power tools (though they are very energy dense).

So what I am wondering is if I can buy 2 / 4 of these and wire them to deliver no more than 36v continuous to the 24v motor and will it improve performance or just burn up the components.

Also as an added question, if it is not possible to run 36 volts directly is there a controller that could accomplish this.

Thanks!

The motor is from Currie Technologies, specialists in electric bikes.

2007-08-31 11:26:18 · 3 answers · asked by SILVRSWT 2 in Engineering

2007-08-31 11:25:40 · 4 answers · asked by sp4rkle13 1 in Mathematics

I had tried to jerk it many times but the bubbles still persists. Thanks a lot!!!

2007-08-31 11:24:09 · 2 answers · asked by Niraj M 2 in Physics

We finally make it to Mars. We find the remains of anciet cities and all kinds of civilization relics. But we don't find a single creature. Not even a bone or hair.
With you current scientific philosophy. Would you be forced to look for natural causes for the cities and relics? Or would you conclud that they were designed by, unseen and unknown, intelligent beings?

2007-08-31 11:22:03 · 9 answers · asked by THEHATEDTRUTH 2 in Other - Science

I have tried to understand it, with difficulty, and have come away with the conclusion that it means the observable universe exists only when we observe it. It's kind of like a whole lot of potential realities exist and we create the universe from them.
Any thoughts??
Don't be too hard on me, I'm a math guy who gave up on physics at quantum mechanics.
Too bad I had to side with Einstein. Perhaps God does play dice.

2007-08-31 11:20:18 · 3 answers · asked by William B 4 in Physics

Hey all,here to test the general publics math skills again....Its a word problem & here it is ; It is sort of a trick question,so be careful when you answer.Goodluck!!

You write a check out to your friend for 300 dollars.Your friend gives you 300 dollars cash and lets you borrow 300 dollars as well. Now, you go shopping & write out another check for 600 dollars.Then you goto the bank and deposit 600 dollars.How much did you actually spend?

Goodluck!!

2007-08-31 11:14:57 · 6 answers · asked by sawkilla1 1 in Mathematics

What is the magnitude of plane that leaves the airport and flies 140 km at 68.0 degrees east of north and then changes direction to fly 240 km at 48.0 degrees south of east, after which it makes an immediate emergency landing in a pasture?

2007-08-31 11:12:18 · 1 answers · asked by Anonymous in Physics

2007-08-31 11:10:46 · 3 answers · asked by Awesometown13 1 in Mathematics

Why do different constellations "appear" in our night sky (northern hemisphere) in winter than summer?

2007-08-31 11:07:22 · 10 answers · asked by Anonymous in Astronomy & Space

2007-08-31 11:04:52 · 3 answers · asked by narcissa 5 in Earth Sciences & Geology

On the bottom right corner on paint you can change the length and width of the page and on the bottom they show numbers sorta like a grid or something... is there a way to figure out how big is an 8 1/2 x 11 sheet of paper. I already tried making the page 8 1/2 x 11 and its a tiny tiny square so i was thinking we cant use inches but i'm not the best at math we could say so if anyone knows post it here and ill give you 10 points.

2007-08-31 11:01:33 · 4 answers · asked by courtneygrater838 2 in Mathematics

about mosquito bitting cause he's never got bitten even when he sleeps in the open.

2007-08-31 10:56:20 · 6 answers · asked by Anonymous in Other - Science

The weigth of the crown in air is 214.5 troy oz.

According to current prices,
http://finance.yahoo.com/futures?t=metals
how much money did the goldsmith lost
in the course of his fraud?

2007-08-31 10:55:30 · 1 answers · asked by Alexander 6 in Physics

I mean we all know that llamas are amazing animals but are they more amazing that moose?

2007-08-31 10:54:17 · 6 answers · asked by Anonymous in Zoology

IT'S A 2in. by 4in. board and it's 12ft long. What is the total surface area. Can you please show your work?

2007-08-31 10:52:19 · 8 answers · asked by dominique892001 2 in Mathematics

Please show work if possible or explain...

2007-08-31 10:51:50 · 5 answers · asked by Deutschjoe 3 in Mathematics

I just wanted to know if you could tell me about a typical day being an anesthesiologist? Hours per day? Certain tasks you do? Any information you can give will be helpful! Thanks!

2007-08-31 10:50:16 · 3 answers · asked by allison e 3 in Medicine

I know that the human female get's PMS (Post Menstrual Syndrome) and such, but do any other animals get PMS? Any other animals besides humans?

2007-08-31 10:48:48 · 5 answers · asked by Anonymous in Biology

2007-08-31 10:48:41 · 3 answers · asked by the searcher 2 in Geography