Science & Mathematics - 13 August 2007

Write 3-2i in polar form.


Write (2-2i)^8 in the standard form a+bi.

2007-08-13 07:34:28 · 2 answers · asked by Anonymous in Mathematics

Write A= pi/4 as an equation in rectangular coordinates (x,y)

2007-08-13 07:33:20 · 1 answers · asked by Anonymous in Mathematics

Yes Not a lead free operation I am running boards and I keep getting solder balls on some of the smaller resistor. Isn't there a process for this or what could I do.

2007-08-13 07:32:58 · 3 answers · asked by fortydogg_2000 1 in Engineering

Science declares thwt the unlverseis slowly decaying and will disappear.

2007-08-13 07:31:47 · 13 answers · asked by Anonymous in Astronomy & Space

2007-08-13 07:31:42 · 8 answers · asked by nasiruddin59 1 in Engineering

Me and my friend were watching the meteor shower last night, when all of a sudden a white light with a blue trail burst from a little west of Mars and the star cluster that was near it. It travelled for about ten seconds across the sky and did a zigzag near the end where it just disappeared...

It was weird to say the least. We saw mainly 1 second meteors, but this was really long and put on quite a show.

2007-08-13 07:31:34 · 6 answers · asked by Anonymous in Astronomy & Space

so is there another one today or are they wrong?

2007-08-13 07:31:10 · 3 answers · asked by Anonymous in Astronomy & Space

consider the formation of a solution of aqueous potassium chloride. Write the thermo chemical equations for
a. the conversion of solid KCl into its gaseous ions
b. the subsequent formation of the solution by hydration of the ions.
The lattice energy of KCl is -690 kJ mol^-1, and the hydration energy of the ions is -686kK mol^-1. Calculate the heat of solution of KCl in kJmol^-1

2007-08-13 07:27:31 · 1 answers · asked by kat 2 in Chemistry

What is the volume of a prism whose dimensions are 2 cm times 3 cm times 2 cm?

2007-08-13 07:21:31 · 2 answers · asked by Anonymous in Mathematics

Despite how it appears on the map, Colorado is not rectangular: it's east and west borders are determined by lines of longitude which converge at the north pole (they get closer to each other as they go farther north). Thus, Colorado's northern border must be shorter in length than its southern border. But I have not been able to find anything to say exactly how much shorter (and I must admit, I do not have the math skills to figure it out myself). Does anyone know about this?

2007-08-13 07:20:36 · 2 answers · asked by Anonymous in Geography

consider a gas filled balloon in the air.if we start filling heavy mateial,say mud,it will start sinking down.similarly,weight on the earth is increasing because of popullation,no.of buildings,vehicles and what not.can the earth sink down in the space?

2007-08-13 07:20:21 · 6 answers · asked by noopuresh 2 in Earth Sciences & Geology

too bad, i missed it. it appearead like 5 sec only in indonesia. which country n city r u in? how it looked like? did u make a wish?

2007-08-13 07:19:45 · 4 answers · asked by Tea Lover 3 in Astronomy & Space

heyy. I need to know the atmospheric pressure or (barrometric pressure.) for yeaterday or today. A web sit that will give me it every day would be nice . Or if you happen to know this then that would be great. i need this for a science experiment.

2007-08-13 07:13:49 · 5 answers · asked by ilovesun 2 in Physics

I mean quantity (lol)
Human Being NOT Included

Thanks

2007-08-13 07:12:22 · 4 answers · asked by Anonymous in Zoology

2007-08-13 07:10:04 · 6 answers · asked by psilocyphener 3 in Physics

2007-08-13 07:07:03 · 11 answers · asked by Ima Stressed Out 5 in Astronomy & Space

Is there a furmula to convert Celsius to Fahrenheit?

2007-08-13 07:03:48 · 10 answers · asked by Amir B 1 in Mathematics

taxishouldbepayingonmywages.

2007-08-13 07:03:18 · 7 answers · asked by castonelaine 1 in Paranormal Phenomena

Who would win? If you watched jurassic park before, keep in mind that an average Velociraptor is actually half the size of those seen in the movie, so a Velociraptor is actually smaller and lighter than any of those big cats. Who would win in a fight? Who's faster and who's stronger?

2007-08-13 07:02:45 · 6 answers · asked by turin 2 in Zoology

i want to ask u, how it could be collapsed?
what standard design and constructing that they use to construct the Minnesota Bridge?
is there any connection between the standard they use to construct the bridge with Load Resistance and Factor Design (LRFD), standard for steel construction design?
I'm so afraid if it happen cause steel constructions design in most Indonesia based on American Standard Design, n it taught in most university in Indonesia....
I hope there is no mistake...

2007-08-13 07:01:45 · 7 answers · asked by Tommy M 1 in Engineering

1.A solid non metallic element that is trivalent in its compounds
2.A solid non metal element that is tetravalent in its compounds
3.A solid metallic element that is monovalent n all its compounds
4.A gaseous element that is monovalent in all its compounds

2007-08-13 07:00:28 · 2 answers · asked by lamide e 1 in Chemistry

2007-08-13 06:59:04 · 6 answers · asked by Sam C 2 in Zoology

electrons is a/an
A. insulator
B. conductor
C. capacitor
D. coulomb

2007-08-13 06:58:14 · 2 answers · asked by Anonymous in Chemistry

like.. Eeeee! eee! and what else?

2007-08-13 06:56:09 · 7 answers · asked by Anonymous in Zoology

I found a spider in my basement today and it looked kind of strange. I was wondering if there was a website I could go to so I can identify this spider.

2007-08-13 06:51:25 · 2 answers · asked by Anonymous in Earth Sciences & Geology

2007-08-13 06:46:51 · 7 answers · asked by Anonymous in Mathematics

me and my friend want to do wi fi connection with our nintendo ds and it only goes up to 65 feet.

i looked our addreses up on mapquest but it only gave me 0.11

2007-08-13 06:46:26 · 7 answers · asked by lisa J 1 in Mathematics

A. Voltage
B. Resistance
C. Direct Current
D. alternating current

2007-08-13 06:46:14 · 4 answers · asked by Anonymous in Physics

The answer should be x=4... It's been a while since I've worked with logarithms.. So a quick refreshment would be fantastic.

2007-08-13 06:43:22 · 5 answers · asked by G S 1 in Mathematics

help please.

2007-08-13 06:40:06 · 9 answers · asked by lexie_babee 3 in Mathematics