Science & Mathematics - 17 January 2007

i heard that people are working on building a city or something on mars so we all can live there when earth explodes. Is this true?

2007-01-17 07:23:51 · 13 answers · asked by Anonymous in Astronomy & Space

2007-01-17 07:23:40 · 3 answers · asked by Anonymous in Mathematics

http://img165.imageshack.us/img165/1314/2ta8.png

In which segment of this figure will properties of the elements vary the most? A or B?

2007-01-17 07:21:38 · 4 answers · asked by Anonymous in Chemistry

The surface area (including top) S of a cylinder having height h and base radius r is given by:
S=pi r(r+2h). Express h in terms of pi, r and S. Find h when: S=1.51m sq., pi=3.14, r=35.4cm.
Any answers would be appreciated.

2007-01-17 07:18:39 · 6 answers · asked by Anonymous in Mathematics

I’m only a Junior in High School, but I do really well in and enjoy math and have always been interested in a space-oriented career and my dad recommends a career in engineering. I think Astronomical Engineering seems like an ideal career right now, but I would like some more information about it. I’ve searched the internet and now I’m hoping for someone to just have some more information about maybe schooling, salary, and details of what really goes on being an astronomical engineer.

2007-01-17 07:17:30 · 2 answers · asked by armageddon144 2 in Engineering

1. The region located located inferior to the nose is called the ________region
2. The brachial region is located________to the pectoral region.
3. Posterior to the caphalic region is the_______region.
4. The axillary region is located _________to the mammary region.
5. The buccal region is lateral to the ___________region.

2007-01-17 07:16:38 · 1 answers · asked by hi h 1 in Biology

I can only find four and I am not sure is they are even right. i ve been looking forever and if you can will you please explain them i just cannot find it.

2007-01-17 07:15:40 · 4 answers · asked by LEAH 3 in Biology

1.) three tankers each carry 10,000 tons of oil and a fourth tanker carries 12,000 tons of oil.What is the average (arithmetic mean) number of tons of oil carried by each of the four tankers?

2.)The average (arithmetic mean) grade of ten students on a test is 64.What would an eleventh student have to score on the teat to bring the class average to 65?

3.)on a test 50 questions,Gertrude answered 47 correctly .If Gertrude answered every question, what percentage did she answer incorrectly?

4.) A merchant raises the price of a $100 item by 20 percent. After finding that heh cannot sell the item at the higher price, however, he discounts it by 20 percent. What is the final price of the item?

5.)if the ratio of boys to girls in a classroom is 1 to 3, what percent of the class is girls?

2007-01-17 07:15:10 · 3 answers · asked by layaly m 1 in Mathematics

2007-01-17 07:14:58 · 5 answers · asked by krazy lover 1 in Chemistry

I"m working with sound, light, and waves. I need to do a powerpoint presentation on how light affects colors and how they work. HELP!

2007-01-17 07:14:46 · 3 answers · asked by weirdandwacky213 1 in Physics

2007-01-17 07:13:24 · 7 answers · asked by Anonymous in Chemistry

are cob webs he same thing as spider webs and if not how are cob webs made

2007-01-17 07:13:19 · 6 answers · asked by villevallo77 1 in Zoology

eva models with display cases

2007-01-17 07:12:45 · 2 answers · asked by JAMES D 1 in Astronomy & Space

2007-01-17 07:10:40 · 3 answers · asked by krazy lover 1 in Chemistry

also any info on it

2007-01-17 07:10:20 · 1 answers · asked by STACEY M 1 in Botany

2007-01-17 07:09:27 · 2 answers · asked by Anonymous in Biology

2007-01-17 07:09:12 · 1 answers · asked by rene_chic 1 in Botany

2007-01-17 07:08:34 · 3 answers · asked by Put_ya_mitts_up 4 in Biology

A woman conducting a survey asks a man how many children he has.
"I have three children."
"And how old are they?" she asks.
"All I will tell you is that, working in years if you multiply their ages the answer is 72 and if you add their ages the answer equals my house number."
With that he shuts the door. The woman looks at the house but finds it impossible to work out the age of each child.
She knocks on the door and protests that he has not given her anough information.
"Oh, I forgot to tell you," the man says, "my oldest child likes chocolate" and then he shuts the door.
How old is each child?

2007-01-17 07:08:07 · 7 answers · asked by Natasha A 1 in Other - Science

2007-01-17 07:08:01 · 4 answers · asked by balak 1 in Weather

2007-01-17 07:06:43 · 2 answers · asked by gökhan g 1 in Earth Sciences & Geology

2007-01-17 07:04:46 · 1 answers · asked by John M 1 in Physics

i am normally really good at math but this one is harder for some reson! Yet i do harder stuff all the time. plaese help!

2007-01-17 07:04:32 · 10 answers · asked by Anonymous in Mathematics

My question about Concorde being a hoax was aimed at those who use the fact that we have not been back to the moon siince 1972 as "proof" that the moon landings were fixed.

But there is so much paranoia now regarding conspiracies that readers took it seriously.

Concorde was 1960's technology. Concorde is no more. We have not got a supersonic airliner, and one is not on the drawing board. So, by the moon landing hoaxers arguments, Concorde was a fraud and never flew at mach 2 at all, because we haven't got an airliner that even exceeds mach 1.

2007-01-17 07:04:22 · 2 answers · asked by nick s 6 in Astronomy & Space

2007-01-17 07:02:57 · 2 answers · asked by John M 1 in Physics

Help ! I need to express my radical in simplified radical form

There is a picture of a triangle with 3 sides.

One side is 10

The other side is 8

and the last side is (x)

How do I do this problem ?

2007-01-17 07:00:42 · 7 answers · asked by CookFrNW 3 in Mathematics

I know water freezes at 0 degrees celsius and that water boils at 100 degrees celsius. I do not understand how to use the formula given: Q=mLv .
Can someone explain this for me?
I was thinking the answer would be turning water into steam because it takes more heat to boil water then it does to melt ice, right?

2007-01-17 07:00:29 · 7 answers · asked by whispertree 3 in Physics

2007-01-17 06:59:07 · 1 answers · asked by giridher g 1 in Engineering

I have to simplify by combining like terms :

(x)squareroot18

minus

3squareroot8x^2


I am also having trouble completing this equation:

(sqrt3 +5)(sqrt3 - 3)


HELP !

2007-01-17 06:57:49 · 3 answers · asked by CookFrNW 3 in Mathematics

2007-01-17 06:57:04 · 35 answers · asked by Anonymous in Geography