Science & Mathematics - 12 November 2007

Enemy air force base C is located at equal distance from point O: AO = BO = CO, and has two types of long range bombers deployed:
Type-Ca(aimed to attack base A) has maximum range CA.
Type-Cb(aimed to attack base B) has maximum range CB.
http://i2.tinypic.com/34odp3a.jpg

Areas of surface of the planet covered by each type of bombers are Sa and Sb respectively.

Long range fighters deployed at AFB A have maximum range AB (just sufficient to defend the naval base).

What is area of planet surface S is covered by long range fighters deployed at A?

2007-11-12 04:11:01 · 2 answers · asked by Anonymous in Mathematics

2007-11-12 04:07:09 · 3 answers · asked by bubbly_stubbly 1 in Mathematics

Our house is old and we heard you can put a bowl of water on the radiotors to creat a less dry area.
thanks

2007-11-12 04:05:57 · 2 answers · asked by jed123 1 in Earth Sciences & Geology

If we went to an alternative fuel of specifically a fuel cell that uses water, how would the govenment tax it to pay for roads and what not? Where I live, the cost of off road diesel $1.00 less per gallon because it isn't taxed. How would the government make that money up if we could just go to any water source and fill up? How will the make up the hundreds of millions of dollars they'd lose? I don't think a dollar per gallon tax on water would work because its also a neccessity to live. Do you think not being able to get around the tax issues has limited the governments involvement in finding alternative fuels? I know theres been government fuel cell projects going on since the 80s, but its hard to believe nothing practical has come out of it yet.

2007-11-12 04:02:11 · 5 answers · asked by dsaf f 2 in Engineering

I have a program that's 62,110 square feet. I need the formula that will give me what length and width it takes to create that size. Thanks!

2007-11-12 03:59:09 · 8 answers · asked by Matthew B 1 in Mathematics

I live in NYC, brooklyn 11218 and if u live in NYC too then plz answer this even if u don't plz answer it.

IS this website telling the real truth.

Master degree for zoologist in NYC 11218 Brooklyn
http://www.indeed.com/salary?q1=zoologist+master+degree&l1=Brooklyn

Regular Salary in NYC 11218 Brooklyn
http://www.indeed.com/salary?q1=zoologist+&l1=Brooklyn

2007-11-12 03:55:53 · 2 answers · asked by Yasir Ali 3 in Zoology

i need help with my technique when i take on questions about this.

take this example:
prove that:

cos 2x / (1-sin 2x) = (1 + tan 2x) / (1-tan 2x)

all i ever do in these questions is start substituting things like
" sin^2 x + cos^2 x " in place of " 1 "

with no real ideas or aims with what i am doing, i just wade in blindly and hope it works.
so can anybody tell me any sort of techniques for dealing with questions like this?
like what's the first thing you always do with a question like this,
r there certain things you make sure to do that always help out?

i am sick of just charging blindly at these questions because i either get lucky and get the answer by what feels like a fluke, or more often i just make a more complicated mess than the original expression i started with.

can anybody help out? does not have to be with that example i gave up there, but whatever suits you.

cheers.

2007-11-12 03:53:10 · 4 answers · asked by fpa06mr 5 in Mathematics

2007-11-12 03:50:23 · 1 answers · asked by Anonymous in Mathematics

In each of the four legs of the relay, a dog jump over a hurdles, retrieve a ball from the fly box, and runs back over the hurdles. In the last leg of the relay, the collies start the course 0.3 second before the sheep dog. The collies is running 23.4 feet per second, and the sheep dog running 24 feet per second. The distance from where the dog start to the fly box is 150 ft. Let t represent the time it take the collies to run the last leg . Write an equation to find the number of seconds after which the sheep dog would catch up with the collies.

Help me please, i'm so confused!
This is what i wrote , is it right?

150 * 23.4x = 150 * 24x - 0.3

2007-11-12 03:50:21 · 1 answers · asked by (: 3 in Mathematics

How long must the second hand of a watch be for the tip to be traveling faster than the speed of light?

2007-11-12 03:49:54 · 4 answers · asked by Susan R 1 in Physics

2007-11-12 03:49:41 · 5 answers · asked by Toronto 1 in Zoology

I need to see your work to make sure mine is accurate

1. Solve by factoring:
x2 – 13x = -12



2. Solve using the square root property:
2x2 – 35 = 15


3. Solve using the square root property:
(x + 6)2 = 4

4. Solve by completing the square:
x2 + 6x + 1 = 0


5. Solve using the quadratic formula:
x2 – 3x = 7x – 2

6. Solve using the quadratic formula:
x2 – 7x – 1 = -7

2007-11-12 03:42:07 · 4 answers · asked by Maggie L 1 in Mathematics

Can someone in plain English without any complicated words explain the meaning of R^2???
I am trying to explain the relationship of r^2 and an equation I had for a parabola. But I dont understand it myself... can someone explain it to me clearly?

2007-11-12 03:41:58 · 3 answers · asked by Nina 3 in Mathematics

I have a question from my homework; it's said "The wall outlets in your home are 120V. In europ, the wall outlets typically supply 220V. Find out how you can use your hair dryer in Europe."
I looked at all the website that I could ..but I couldn't find the answer ..Can anyone help me? I told my teacher ..if I were on that problem I would buy another hair dryer in Europe instead using mine .lolz

2007-11-12 03:41:08 · 5 answers · asked by *KriiStY* - 1 in Engineering

2007-11-12 03:32:14 · 4 answers · asked by Jazzy ;) 1 in Botany

2007-11-12 03:29:50 · 15 answers · asked by Anonymous in Astronomy & Space

a. their clock would be slower and their light red shifted

b. their clock would be slower and their light blue shifted

c. their clock would be faster and their light blue shifted

d. their clock would be faster and their light red shifted

2007-11-12 03:29:42 · 1 answers · asked by Jacquisha R 1 in Physics

2007-11-12 03:23:59 · 2 answers · asked by intelligent girl 1 in Biology

Lets see how many out here believe we are being visited by other life forms from other star systems other than our star the sun,, Please submit your beliefs and your theories,, As in yes or no you do or do not believe and lets see what becomes of the answers we get,, This is just to see the percentage,, Please leave God out of the equasion,, Just your thouhgts, beliefs, Why or why not,

2007-11-12 03:23:08 · 9 answers · asked by SPACEGUY 7 in Astronomy & Space

a girl coasts down a hill on a sled, reaching level ground at the bottom with a speed of 6.8 m/s. The coefficient of kinetic friction between the sled's runners and the hard, icy snow is 0.044, and the girl and sled together weigh 651 N. A=9.81 m/s^2.

a) How far does the sled travel on the level ground before coming to a rest?

b) What is the coefficient of kinetic friction b/w the block and the incline?

c) What is the magnitude of the frictional force acting on the block?

d) what is the speed of the block after it slides the distance of 2.67?

2007-11-12 03:19:53 · 1 answers · asked by ? 2 in Physics

2007-11-12 03:18:45 · 1 answers · asked by globalcrook 1 in Chemistry

20% of 480 is ?

2007-11-12 03:17:21 · 4 answers · asked by Anonymous in Mathematics

I've always wanted to fly. Why can't I?!?!?

2007-11-12 03:16:00 · 7 answers · asked by Anonymous in Biology

below i have listed my science fair topic:
measuring the percent or water in various fruits and vegetables

2007-11-12 03:14:57 · 2 answers · asked by andriana h 1 in Biology

Can somebody explain how to do this?

http://images31.fotki.com/v1041/photos/7/70549/1058975/lapproximation-vi.jpg


I'd appreciate any help. Thanks.

2007-11-12 03:14:55 · 1 answers · asked by Anonymous in Engineering

2007-11-12 03:14:16 · 8 answers · asked by done with this 3 in Mathematics

2007-11-12 03:13:00 · 1 answers · asked by sniper 1 in Engineering

2007-11-12 03:11:58 · 32 answers · asked by Watch it bub! 3 in Astronomy & Space

Why do they?

2007-11-12 03:10:50 · 10 answers · asked by Anonymous in Zoology

If you could have command of a starship with comparable technology to one from Star Trek (warp drive, transporters, phasers, etc), what would you do with it?

Looking for both serious and wisea** answers here.

2007-11-12 03:10:48 · 3 answers · asked by r_moulton76 4 in Astronomy & Space