Science & Mathematics - 11 January 2007

Does it mean level 5 like the strength level. If you dont know could you answer this?

What was the strength of hurricane katrina?

2007-01-11 08:58:32 · 5 answers · asked by Anonymous in Weather

it happened on my way to my car when i was getting off of work i heard somebody say what the hell is that pointing towards the sky, i looked up and it looked like a huge meteor going realy slow across the sky and i mean huge there was no flames or light coming from it, this mass was giving off a huge trail of smoke it didnt make any noise or sonic boom but it seemed to be really low or it might have just been the size of it and didnt break into pieces, it just went from one side of the horizon to the other side and the trail of smoke was all over the sky????? what the hell was it

2007-01-11 08:58:17 · 9 answers · asked by Anonymous in Astronomy & Space

Perform the indicated operation and write your answer in standard:

( 2 + 7i)(2 -7i)

2007-01-11 08:57:56 · 6 answers · asked by melanie m 2 in Mathematics

2007-01-11 08:55:54 · 4 answers · asked by Marybeth T 1 in Medicine

As a "helping" teacher, I have to explain kids what they did not
understand in class.
I am a Dr in Engineering, lecturer, and have a pretty good knowledge of sciences & maths.
I am BAFFLED by what the ORDER in which they are learning "things" .IE: they are taught to resolve trigonometry problems of triangles BEFORE understanding Pythagor's theorem... etc... WHY??????
So, I am writing on my website (www.skytargets.com) simple lessons on "things", that are available to any kid.
To cater for that superficial "knowledge" (forgotten the day after the test) and implement a form of LOGICAL progression, I need to establish a proper CURRICULUM, starting at the early age of 7-8 to the 16-18.
Please, provide me with some guidance, where kids will be learning things that are useful, and BASED ON PREVIOUS KNOWLEDGE.
(Don't teach ax² + bx + c = 0 BEFORE teaching 1/2 + 6/5 - 1/3!)
If I have enough replies, I shall set-up a line on my website for this
purpose.
Thank to all.

2007-01-11 08:55:16 · 1 answers · asked by just "JR" 7 in Other - Science

2007-01-11 08:55:13 · 4 answers · asked by curlyq208 2 in Mathematics

what is the formula to find out revolutions?

2007-01-11 08:54:48 · 4 answers · asked by Girly 2 in Mathematics

2007-01-11 08:52:15 · 19 answers · asked by j_goodwin27 2 in Earth Sciences & Geology

6x+5y=6
3x+5y= -12

2007-01-11 08:50:56 · 3 answers · asked by Diamond 1 in Mathematics

Perform the indicated operation and write your answer in standard form: (-7 +5i) - (-9-11i)

2007-01-11 08:50:36 · 4 answers · asked by melanie m 2 in Mathematics

Considering the G-forces on the human body and a spacecraft traveling at the SPEED OF LIGHT, it would take a very long time to make a U TURN in outer space without the spacetravelers suffering any ill effects.

So...how long would it take (hours?...days?...weeks?...years ?) to safely make a U TURN in outer space?

2007-01-11 08:50:14 · 4 answers · asked by Anonymous in Physics

2007-01-11 08:50:13 · 6 answers · asked by rick p 1 in Geography

A lottery has a $1 000 000 first prize, a $25 000 second prize, and five $1000 third prizes. A total of 2 000 000 tickets are sold.

a) what is the probability of wining of a prize in this lottery ??
b)if a ticket costs $2.00, what is the expected profit per ticket ??

>>>Show your work please<<<

2007-01-11 08:50:06 · 3 answers · asked by Anonymous in Mathematics

If an atom of sodium had an aotmic number 11, and it lost an electron, what would be the result?

2007-01-11 08:50:04 · 6 answers · asked by Dawn 1 in Chemistry

2007-01-11 08:48:50 · 47 answers · asked by Janelle 2 in Astronomy & Space

2007-01-11 08:47:38 · 3 answers · asked by Anonymous in Mathematics

6d-2d=28

7e-6=2e+34

5f+f=29+7

11g-8=4g+27

12g-12=4g+12

2007-01-11 08:46:17 · 10 answers · asked by thanya a 1 in Mathematics

A rectangle is 4 times as long as it is wide. A second rectangle is 5cm. longer and 2 cm. wider than the first. The area of the second rectangel is 270 square cm. greater than the first. What are the dimension of the original rectangle?

2007-01-11 08:45:56 · 3 answers · asked by gloriousnina 2 in Mathematics

Okay, yes the wax melts, but it gets smaller too. So, does it evaporate? Just wondering.........

2007-01-11 08:44:58 · 32 answers · asked by candispassion.com 3 in Chemistry

Ok Q is between P and S, R is between Q and S. S is between Q and T. PT= 30, QS=16, and PQ= QR= RS. Find PQ, ST, and RP

Please help I would really apreciate it.

2007-01-11 08:43:39 · 7 answers · asked by Sarah S 1 in Mathematics

Coz i heard this news today about that asteroid that is possibly goin to hit the earth on 2029.It was on msn. THe idea is freakin me out so wat do u think about it?????????

2007-01-11 08:40:22 · 13 answers · asked by cornelia 1 in Astronomy & Space

6xy-9x-4y+6

2x^2y+6xy-x+3

6xy^2-3xy+8y-4

2007-01-11 08:40:21 · 4 answers · asked by Eminator 4 in Mathematics

I am doing an egg drop contest and can't think of any ideas to keep it from breaking. Any ideas would be greatly appricated. I am not allowed to use foam or styrofoam.

2007-01-11 08:39:36 · 11 answers · asked by brunnettbabi6 2 in Engineering

2007-01-11 08:39:27 · 6 answers · asked by rabbie 2 in Geography

I mean, I know how an air conditioner works. But it seems like the colder the whole thing is, it would have to be more efficient. I'm just asking because water is included in my lease but I have to pay for power.

2007-01-11 08:39:13 · 4 answers · asked by ppc422 2 in Engineering

How much work can a 3.0 hp motor do in 0.60 h?

2007-01-11 08:38:49 · 2 answers · asked by gracelikerain 2 in Physics

a) the light laser will be seen at speed 2c
b) the light will not be seen
c) the light will be seen at speed c
b) none of the above

2007-01-11 08:36:41 · 10 answers · asked by 8 3 in Physics

My friend was in french class and she says that there is a word for 'male chicken' in french and a word for 'rooster' in french. But are they two different things? Because I thought that's what male chickens were called...roosters..

2007-01-11 08:36:14 · 6 answers · asked by Hallie 1 in Zoology

What is the Average radius of the earths orbit with the sun.
Given Mass of sun - 2.00x10^30kg
Equations.. Fg = G x (m1xm2) / r^2
Fg = Fc
Fc = M x Centripetal Acceleration (which is noted as Ac)
Ac - v^2 / r

2007-01-11 08:35:24 · 3 answers · asked by UnK3 2 in Physics

How is this calculated

2007-01-11 08:34:11 · 2 answers · asked by Anonymous in Geography