Science & Mathematics - 10 November 2006

is compounded semiannually.(hint;find the simple interest twice)

2006-11-10 14:06:40 · 8 answers · asked by sinajina 1 in Mathematics

this has really got me confused im ment to use Thevenin's theorem to determine the current in a resistor on a simple DC circuit, when i type Thevenin's theorem into a google search it just confuses me more i dont understand how to apply that formalua to a given circuit, i was hoping to find a formalua triangle Eg V = I x R, XL = 2(pie, 3.14)fL, ect ect but it seems much more complicated than that

could you please suggest any useful links or advice
many thanks

2006-11-10 14:06:32 · 3 answers · asked by csnape2003 3 in Mathematics

Our sun is not expected to burn out for another 5 billion years (it's already about 5 billion years old). But 2 billion years from now, our galaxy will collide with its neighbor. Suns and stars will be tossed around everywhere as the two galaxy becomes one.

http://haydenplanetarium.org/resources/ava/page/index.php?file=G0601andmilwy

2006-11-10 14:06:18 · 10 answers · asked by Kitiany 5 in Astronomy & Space

I know you might think im a bit dumb for not knowing the answer to this question...but im not much of a physics person,,im better on my english and economics....=)...can u please help me on this question?
1] describe all the energy changes that occur when an arrow is fired from a bow and enters a target. Include the energy changes at the bow, during the flight of the arrow, and the target.
( I dont know what else to right apart from potential energy, total energry and kinetic energy)

2006-11-10 14:04:11 · 2 answers · asked by Anonymous in Physics

Under the influence of a complicated collection of physical fields, the altitude h of a rocket from its moment at launch until its fall to Earth is given by the formula h(t)= t^4 - 8t³ + 375 where the altitude h is measured in feet and the time launch t is measured in seconds. What is the initial altitude? When does the projectile impact Earth? What is the max. altitude? What is its max upward velocity??? What is its max downward velocity??? What is its max upward acceleration??? What is its max downward acceleration???

2006-11-10 14:01:38 · 4 answers · asked by hippiechic2241 1 in Physics

2006-11-10 14:00:33 · 12 answers · asked by Anonymous in Chemistry

this is on compound intrest

2006-11-10 13:58:46 · 7 answers · asked by sinajina 1 in Mathematics

2006-11-10 13:57:09 · 9 answers · asked by tong v 1 in Earth Sciences & Geology

OK, converting RS FF (which is with nand gates) to JK FF is simple. We just take K.Q as R and J.Q' as S, right?

But how can we prove it?

2006-11-10 13:56:31 · 1 answers · asked by exodusfe 1 in Engineering

study = no failed
no study = failed

2006-11-10 13:55:05 · 5 answers · asked by fadsky 1 in Mathematics

2006-11-10 13:48:15 · 6 answers · asked by tong v 1 in Earth Sciences & Geology

I

2006-11-10 13:48:10 · 8 answers · asked by Benjamin C 2 in Astronomy & Space

I wan't to know hwo to make ice because i need it for my science porject i saw how they made it on jerico i dont rmeber the stuff to doo it with can you tell me how to make the ice so i can get a good grade in science lol.s im just in 6th grade and im failing in science so i need to make a c+ or up my dad says sooo can yeah help me soo i can get a good grade and i wont get gorunded for 2 month please please pleas ei need help to mae i ce tahts all i ask for it aculy sound liek i want money but i need to know how to make ice you you a bowl or sumtihn lol. i dont rember every thing because i didnt pay attanch and i also got red of my tvbo soo tahts i really want is higher then a c+ lol.. atleast A+ or B plaease

2006-11-10 13:47:38 · 7 answers · asked by sk8er16gal 1 in Earth Sciences & Geology

Can anybody give me any info on pharmacology????
i mean like whhat's the difference between a pharmacist, pharmacologis, pharmaceutical. also what type of degrees are there for pharmacology, schools and jobs for pahrmacologist??/

2006-11-10 13:45:35 · 3 answers · asked by mike 1 in Medicine

The motion of a particle on the x-axis is governed by the given equation: x= -11 + 12t + 3t² + 4t³ - t^4. Find the location of the particle and the velocity when the acceleration is a maximum.

2006-11-10 13:42:38 · 6 answers · asked by hippiechic2241 1 in Mathematics

As far as I can tell, it has to be an aqueous solution, but once it touches your skin, your skin will have to come off rather than the colour changing by itself. What is it reacting with, and why so permanently?

2006-11-10 13:41:42 · 4 answers · asked by Link 4 in Chemistry

What is the dispersion of red light by a prism?
What is the dispersion of white light by a prism?

2006-11-10 13:41:17 · 2 answers · asked by Tavis T 1 in Physics

2006-11-10 13:39:04 · 5 answers · asked by Link 4 in Chemistry

2006-11-10 13:38:38 · 7 answers · asked by Link 4 in Physics

i need the formula .........................in detail and short

2006-11-10 13:38:06 · 3 answers · asked by Anonymous in Chemistry

thanx for helping me^^

2006-11-10 13:35:43 · 3 answers · asked by Ayumi 1 in Biology

2006-11-10 13:34:06 · 3 answers · asked by Link 4 in Other - Science

2006-11-10 13:33:21 · 9 answers · asked by Janna G 2 in Medicine

2006-11-10 13:27:02 · 6 answers · asked by Link 4 in Chemistry

i am trying to develop a theory based on a device that works both on compression an extreem vacum of pure water.and the intention to benefit the public in a public forum

2006-11-10 13:26:36 · 4 answers · asked by stratoframe 5 in Physics

For example, in a pitch black cave, would a nocturnal animal be able to see anything?

Excludes bats, of course.

2006-11-10 13:25:37 · 12 answers · asked by Link 4 in Biology

Can you tell me the diffrence between prokaryotes and eukaryotes
Also what is the cell theroy?

2006-11-10 13:24:18 · 6 answers · asked by Lynn 2 in Biology

what is the structure of halogenated hydrocarbon?
what is its possible hazards to our environment?

2006-11-10 13:22:52 · 4 answers · asked by Mica K 2 in Chemistry

I am an electrical engineer with M. Sc. I studied calculas, engineering analysis numerical methods, probability and statistics, operation research and many math topics at engineering college. then i joined math department for three years. the new subjects where finite math ,foundations, linear algebra, abstract algebra, real analysis.
I was brilliant in all those subjects
I couldint continue my formalstudy. the remaining subject where topology, differential eqn theory, functional analysis and complex analysis.
Now I am trying to study the remaining subjects my selfwithout a professor. I have difficulity in constructing proofs or solving exercises. In fact i never liked proofs. should i continue my effort or stop to do somthing else.

2006-11-10 13:16:50 · 9 answers · asked by an ugly mind 2 in Mathematics

The regular icosahedron is a solid whose 20 faces are congruent, equilateral triangles. It has 12 vertices. You can divide the vertices into three groups of four vertices that each define a rectangle going through the middle of the solid. The three rectangles are perpendicular to each other, and their one common point is the center of the icosahedron.

Prove that the three rectangles are Golden rectangles (their length/width ratio is phi = 1.61803...).

2006-11-10 13:15:26 · 2 answers · asked by Anonymous in Mathematics