Science & Mathematics - 9 November 2006

2006-11-09 07:48:47 · 7 answers · asked by scott_bur10 1 in Earth Sciences & Geology

2006-11-09 07:48:02 · 10 answers · asked by EJ 1 in Chemistry

i want to be able to solve quadratics, and i know you can on the calculator, but i just dont know EXACTLY how to do it.

2006-11-09 07:48:01 · 3 answers · asked by Ally 2 in Mathematics

2006-11-09 07:47:33 · 9 answers · asked by reaful 2 in Chemistry

1+cos(x)/sin(x) + sin(x)/1+cos(x) = 2csc(x)

I just don't understand why it would turn out like that...so if someone could please help me out here, it is totally frying my mind. Thanks

2006-11-09 07:45:34 · 5 answers · asked by Anonymous in Mathematics

5x-2(5x^2-5x+5)+(7x^2+4x-4
a) -3x^2+4x-9
b) -3x^2+19x-14
c) 2x^2+14x-14
d) 17x^2+19X+14

2006-11-09 07:45:02 · 2 answers · asked by Chunky 1 in Mathematics

I just read an article about a river close to where I live. Because of all the rain we've had recently, this river "crested" at 61 feet. I don't quite understand what that means.

2006-11-09 07:43:09 · 7 answers · asked by SassySours 5 in Weather

a) 10(3x)
b) 5(6x+2)
c) 2(15x+5)
d) 10(3x+1)

2006-11-09 07:41:59 · 7 answers · asked by Chunky 1 in Mathematics

2006-11-09 07:38:44 · 14 answers · asked by Anonymous in Mathematics

2006-11-09 07:38:27 · 8 answers · asked by ALEE V 1 in Zoology

2006-11-09 07:37:07 · 7 answers · asked by Anonymous in Mathematics

3x^2+9x-12
a) 3(x^2+6x-9
b) 3x(x+3-4)
c) 3(x^2+3x-4)
d) 3(x^2+9x-12

2006-11-09 07:35:11 · 4 answers · asked by gladdo19 1 in Mathematics

PROBLEMS FOR THE IYPT 2007
Important: the problems were intended for the IYPT and may be subject of copyright
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1. Filament
There is a significant current surge when a filament lamp is first switched on. Propose a theoretical model
and investigate it experimentally.
2. Slinky
Suspend a Slinky vertically and let it fall freely. Investigate the characteristics of the Slinky's free-fall motion.
3. Water jets.
What can be observed when two water jets collide at different angles?
4. Spring thread
Pull a thread through the button holes
as shown in the picture. The button can
be put into rotating motion by pulling the
thread. One can feel some elasticity of
the thread. Explain the elastic properties
of such a system.
5. Razor Blade
A razor blade is placed gently on a water surface. A charged body brought near the razor makes it move
away. Describe the motion of the razor if a

2006-11-09 07:35:03 · 3 answers · asked by Anonymous in Physics

I need to find an equation for a rational function with the following asymptotes:
vertical asy: x=6, and x=-1
horizontal asy: y=-9

thanks for any help!!!

2006-11-09 07:33:47 · 2 answers · asked by Anonymous in Mathematics

I notice that in Dallas, TX a great deal of birds sit at very specific intersections such as Plano Rd and Beltline in Richardson. Not being a native of Texas, I can't recall seeing this type of activity (perhaps the birds are just larger here like everything else!). They sit on the wires, atop trees but only on certain corners. And of course they sing like crazy. Anybody know why?

2006-11-09 07:32:39 · 16 answers · asked by Dallasbirdlover 2 in Zoology

2006-11-09 07:32:00 · 15 answers · asked by Andre G 1 in Geography

Bob, Carol, Ted, and Allison all live in Brewster. They are planning a trip to the state campground at Rocky Beach. The Group is thinking about taking a new interstate highway all the way to Rocky Beach. Their car averages 30 miles per gallon and gas costs $2.25 per gallon. The total distance to Rocky Beach and back to Brewster is about 500 miles. Show the mathematics you used to make a reasonable estimate and explain how you arrived at your answer.

2006-11-09 07:30:36 · 13 answers · asked by adrian43092 2 in Mathematics

The place is called Caudill Advert.

2006-11-09 07:30:19 · 9 answers · asked by Natsuhiboshi 2 in Geography

let G be a group of prime order with identity e. Suppose f:G --> G
is a homomorphism such that f( a ) not equal to e for some, a, that belongs to G. completely prove that f is an isomorphism.

2006-11-09 07:29:45 · 2 answers · asked by David F 2 in Mathematics

and still looks pretty big, I was wondering how bright and big would it look if you were just a few thousands of miles away from it in space? Any pictures online that would show it?

Why don't they send hubble near it to take a picture of it that close?

2006-11-09 07:28:57 · 8 answers · asked by newyorkchess2005 2 in Astronomy & Space

It takes a planet 2.46 years to orbit the sun, which has a mass of 2 x 10^30 kg, in an almost circular trajectory.

Calculate the radius of the orbit of the planet as it circles the sun in units of m. Gravitational constant is 6.672 x 10^-11 N m^2/kg^2.

Also, calculate the oribital speed of the planet as it circles the sun in units of m/s.

2006-11-09 07:27:26 · 1 answers · asked by Dee 4 in Physics

2006-11-09 07:25:52 · 5 answers · asked by TuRqUoIsE rOcKs 2 in Astronomy & Space

id really appreciate if you answered this ASAP!

2006-11-09 07:25:24 · 6 answers · asked by angie s 2 in Earth Sciences & Geology

2006-11-09 07:25:01 · 8 answers · asked by Anonymous in Mathematics

please help me i have a test tommorow!!

2006-11-09 07:24:33 · 3 answers · asked by angie s 2 in Earth Sciences & Geology

2006-11-09 07:22:45 · 7 answers · asked by Miss D 7 in Chemistry

2006-11-09 07:22:34 · 12 answers · asked by Soso 1 in Geography

I haven't taken Algebra in over 18 years please help.

2006-11-09 07:22:21 · 3 answers · asked by Lucky1lady 1 in Mathematics

How do you solve y(3y-4)= 7
I've got the answer by trying different numbers but i want to know how
you would get the answers i.e what method would you use.

2006-11-09 07:20:41 · 12 answers · asked by Anonymous in Mathematics

Following up on Brancomicguy's question "what would happen if we started clumping asteroids and planets...?"

It is believed that the earth is slowly increasing in size. Possibly because of the space dust continuously raining down on our planet.

Taking into consideration what I have said in my answer to BRANCOMICGUY's question, would'nt this be another possible explanation to global warming?

2006-11-09 07:20:28 · 4 answers · asked by Prince of Persia 2 in Astronomy & Space