Science & Mathematics - 5 November 2006

2006-11-05 19:44:04 · 1 answers · asked by Phil 1 in Biology

suspose that: circle x means square root x,
triangle x means x = 5, square x means 7x - 2
find the value (picture the number 4 in the center of triangle, then surround by a circle, then surround by square) if needed draw the image. help me.

2006-11-05 19:40:41 · 5 answers · asked by shelleyr2005 1 in Mathematics

A light is suspended at a height h above the floor. The illumination at the point P is inversely proportional to the square of the distance from the point P to the light and directly proportional to the cosine of the angle theta. (a) How far from the floor should the light be to maximize the illumination at the point P? r = distance from Light to P. h = distance from light to floor below. There are 10 meters from point P to a point O (spot on floor directly below light) (b) State the function you need to maximize or minimize and what the interval of admissible values is for the independent variable. (c) Verify your answers by testing all relevent critical points and the behavior at the ends of the interval.

2006-11-05 19:38:01 · 2 answers · asked by numbergirl 1 in Mathematics

Is it possible for a molecule with the formula C^2H^3 to exist?

2006-11-05 19:35:07 · 4 answers · asked by Michelles W 1 in Mathematics

OK, Since we all know that the earth was spinnin cool until the moon ran into it and put this planet on "BAKE" and then with it's slower rotation, all the water molocules floatin round de air began fallin an made de ocean. Now with heat, light, water and earth elements, a little wiggle and OMG the whole earth upstartsta bubble in a boiling mess of life. So, we know this fo'shizzy. But yo know what I done Wizzy? I try-n fizzle out how the done dizzy gets away wit da mo-hizzle-hizzy?
No, that didn't make sense!
I'm wunderin if we got just a long ride in front of use on the way to the sun. Kinda like a quarter rollin down the damn funnel chute of a charity "Hey throw your money in here and watch your money spin round and round untill it's gone never to be seen again, thingy." How come we aren't taking more drastic steps to contact an alien Taxi cab?
Tell me, How does this make you feel?

2006-11-05 19:30:29 · 6 answers · asked by Anonymous in Astronomy & Space

A short note on gravitational force

2006-11-05 19:25:06 · 15 answers · asked by Anonymous in Physics

what is the formula for apr. i got this numbers : quantity = 17,500 , apr% = 1 % , months = 72. what is the formula and where i place this numbers.

2006-11-05 19:21:17 · 2 answers · asked by J.M D 1 in Mathematics

2006-11-05 19:20:40 · 3 answers · asked by Chucky 2 in Astronomy & Space

thal speed of 80 meters ptie formula h=80t-5t2 can be used to find the height h in meter of an object shot upward from the ground at the initial speed of 80 meters per sec., after t seconds. find the height after 4 seconds (t=4)

2006-11-05 19:19:38 · 3 answers · asked by shelleyr2005 1 in Mathematics

at any give time t's position is given by f(t) = 4πt + sin(4πt)
1. find the velocity
2. find the acceleration
3. what are all of the values from 0 to 3 for which the particle is at rest?
4. what is the maximum velocity?

2006-11-05 19:17:19 · 3 answers · asked by gctoinfinity 1 in Physics

2006-11-05 19:15:36 · 6 answers · asked by naughty_dude7 1 in Engineering

you guys are SOOOOO smart

2006-11-05 19:14:48 · 9 answers · asked by crystal w 1 in Mathematics

question concerned with marine boiler operation

2006-11-05 19:11:51 · 2 answers · asked by manikandan 1 in Engineering

2006-11-05 19:11:31 · 16 answers · asked by noura 1 in Geography

6x + 5y = -7
2y = -1 - 3x

please, can someone help explain?

2006-11-05 18:58:20 · 6 answers · asked by Anonymous in Mathematics

my dad says that earth is just goin thro a phase of wich it gets hot then it will get coller soon.what do u think?

2006-11-05 18:51:29 · 10 answers · asked by alaskan_wolf10 2 in Earth Sciences & Geology

We all know that everything that is matter takes space of something. My house takes space of the city, which takes space of the state, which takes space of the country, which take space of earth, solar system, galaxy, universe, and etc. Is it possible that our uncomprehenbile vast universe is no more significant than something the size of an atom??

2006-11-05 18:49:17 · 12 answers · asked by manny_ptown 1 in Astronomy & Space

iron(II) oxide + HCl ------> ????
the hint is that it is a orange/ yellow solution..
HELP!! many thanks ((:

2006-11-05 18:48:08 · 3 answers · asked by pigley 4 in Chemistry

What are they and what causes the colours?

2006-11-05 18:46:45 · 2 answers · asked by Joey 2 in Earth Sciences & Geology

By 'known universe' I mean all that can be ascribed to the original Big Bang, whether observable (eg. stars, planets) or not (parts of the universe from from where no light has reached us yet).
Or in other words, what if the Big Bang phenomenon is but one in a billion that happened (or is happening) with regularity within a larger 'super universe'? My imagination is that these billions (trillions?) of Big Bangs could conceivably form a structure similar to a large galaxy, or planetary system, or one of the many structures we observe at the subatomic and superatomic level.

2006-11-05 18:39:53 · 5 answers · asked by Name not provided 2 in Astronomy & Space

2006-11-05 18:33:22 · 21 answers · asked by lolo 1 in Geography

Hi,
Do any of you folks think you could tell me WHAT exactly a black hole is?

Thankyou very much!

2006-11-05 18:24:52 · 6 answers · asked by Anonymous in Astronomy & Space

How many different types of bears are there? Are soe more violent than others?

2006-11-05 18:22:57 · 8 answers · asked by Direktor 5 in Zoology

a combination lock is open with the correct sequence of 3 numbers from 0-27 inclusive. a number can be used more than once. find the probability of randomly choosing a sequence that will open the lock on the first try.

anyone know how to do this?

2006-11-05 18:22:49 · 7 answers · asked by fdsfsjk k 3 in Mathematics

2006-11-05 18:21:38 · 1 answers · asked by color my world 2 in Botany

A block of mass 12 kg slides from rest down a frictionless 35 deg incline and is stopped by a strong spring with a force constant of (3 * 10^4 N/m). The block slides 3m from rest against the spring. When the block comes to rest, how far has the spring been compressed?

Eep! How do I figure this out?

2006-11-05 18:21:23 · 2 answers · asked by AChung63 1 in Physics

2006-11-05 18:12:31 · 3 answers · asked by koolb 1 in Engineering

Just received an email which says a boy and a man died because of ants crawling into their heads and eating their brains.

Is it even possible for such a thing to happen?

2006-11-05 18:11:10 · 6 answers · asked by mattferoz 1 in Zoology

thanks for the help! could you cite some sources?

2006-11-05 18:06:33 · 1 answers · asked by Anonymous in Biology

2006-11-05 18:06:01 · 19 answers · asked by mississippi_boi_richie 1 in Mathematics