Science & Mathematics - 19 November 2007

Find the arc length
A) radius equals 8 inches and theta equals 80 degrees
B) radius equals 15 feet and theta equals 2

2007-11-19 03:21:19 · 3 answers · asked by nathan 2 in Mathematics

2007-11-19 03:20:09 · 7 answers · asked by lace j 1 in Mathematics

I am currently attending college with a goal to either get my mechanical engineer's degree or aerospace engineering degree and work for NASA. This is a question for those who work at NASA or know someone who works there:

What kind of jobs do you do?

What did you do and go through to obtain that job?

Was it worth it?

And finally, Do you think you made the right choice?

Thanks for your time. I don't know anyone who works there to interview them so I figured this would be the next best thing.

2007-11-19 03:15:13 · 2 answers · asked by stabnhobo 1 in Engineering

I know they just tested the DNA of a T-Rex fossil and found his closest living relative was a chicken. But I thought that only creatures like the pteranadon would have become birds.

2007-11-19 03:14:37 · 13 answers · asked by Sharon M 6 in Biology

please don't leave me answers that do not relate to volcanoes.
by the way i have a website that i need to do for a class, so if you could look at it and give me suggestions the address is www.tysvolcanoes.piczo.com
it is not close to done yet, but check it out anyway.

2007-11-19 03:13:39 · 6 answers · asked by Anonymous in Earth Sciences & Geology

What would your World and your People look like?
What language(s) would you use?

Why Humans from Earth would seem so weird to you?


Thanks! :-)
.

2007-11-19 03:09:37 · 12 answers · asked by Axel ∇ 5 in Other - Alternative

Why is there a volcano here? is it high grade methamorphic melting causing a partial melt or is it subduction related? On a similar note is there any uplifted sea sediment in the himalayas from the neotethys?

2007-11-19 03:09:03 · 2 answers · asked by jonno1805 2 in Earth Sciences & Geology

2007-11-19 03:08:55 · 5 answers · asked by Anonymous in Engineering

thank you for answers now I am in need once again

5x^2+30+40

4x^5+32x^2

45Y^2-6y-3

X^3-25X

x^2+36

14y^2+15y+4

36y^2+60y+25

y^5-256y

49y^2-9

2y^6-2y^3

x^2-8xy+12^2

75x^3y^3-3xy^3

2007-11-19 03:08:06 · 1 answers · asked by beartrap4151 1 in Mathematics

2007-11-19 03:03:16 · 3 answers · asked by Anonymous in Mathematics

Since they've been around for millions of years you'd think thats where they would start.

2007-11-19 03:01:19 · 9 answers · asked by Anonymous in Zoology

6CuCl(aq) + 2Na3N(aq) yields 2Cu3N(s) +6 NaCl (aq) + N2(g) I don't think this equation is balanced to begin with and I am even having trouble with that! Please show conversion steps.

2007-11-19 03:01:14 · 2 answers · asked by xraymom 1 in Chemistry

Atmospheric pressure on Venus is about 90 times that on Earth. A steel sphere with a bulk modulus of 165 GPa has a volume of 2.50 cm3 on Earth. If it were put in a pressure chamber and the pressure were increased to that of Venus (9.12 MPa), how would its volume change (cm3)?

2007-11-19 02:57:49 · 1 answers · asked by Anonymous in Physics

hanging 2.00-kg block begins to accelerate a 4.74-kg block on a horizontal surface. But a rope connected to the wall at 31.5 degrees brings the block to an equilibrium position. The coefficient of friction between the surface and the 4.74-kg block is 0.130.



(a) What is the minimum tension (in Newtons) in the angled rope that maintains this equilibrium condition?
N

2007-11-19 02:55:35 · 1 answers · asked by ags101 2 in Physics

See this video before answering: Astronauts Gone Wild: http://www.youtube.com/watch?v=8hkNnltFfR4

2007-11-19 02:52:49 · 14 answers · asked by Paul K 3 in Astronomy & Space

2007-11-19 02:52:16 · 13 answers · asked by Anonymous in Physics

2007-11-19 02:52:07 · 5 answers · asked by Jack 5 in Biology

2007-11-19 02:48:59 · 1 answers · asked by marsam_89 1 in Chemistry

im suppose to get allergy testing next week im 21 m im on 200mg a day of atenolol for extra beats...ive read online that if you are on beta blockers you shouldnt get allergy testing..and also i might possibly want to try immunotherapy and that also if your on beta blockers you shouldnt get it..well my allergy test is next week the dr knows im on atenolol..should i be concerned?

2007-11-19 02:47:32 · 0 answers · asked by iamloco724 1 in Medicine

im supposed to divide the problem below, but i cant figure out how to solve it.

(3x – 2)(x - 4) – (x - 4)(6 – 5x) / (4 – x)(8x – 1)

=[3x^2 -14x+8 -(-5x^2+26x-24)]/[(4-x)(8x-1)]

= [8x^2-40x+32]/[(4-x)(8x-1)]

= 8x^2 -5x +4)/[(4-x)(8x-1)]

=(8x-1)(x-4)/[(4-x)(8x-1)]

= -1

this was my teachers response, but i cant figure out how to factor out the GCF.
Don't FOIL in the numerator. Factor out the GCF instead. What do you get?

2007-11-19 02:47:04 · 4 answers · asked by Anonymous in Mathematics

I have seen several movies that shows a formation of sorts is this true?

2007-11-19 02:46:25 · 5 answers · asked by Anonymous in Earth Sciences & Geology

Find an equation of the plane E containing the lines and
1(t)=(2–1t)i+(2+2t)j+(1–1t)k
I2(t)=(0+2t)i+(–1+3t)j+(–2+3t)k
E: ___x+___y+___z=___

2007-11-19 02:46:13 · 5 answers · asked by Anonymous in Mathematics

2007-11-19 02:43:38 · 5 answers · asked by Anonymous in Physics

2007-11-19 02:41:35 · 23 answers · asked by RAVINDRAN K 2 in Earth Sciences & Geology

I saw an article on CNN.com this morning, that China, Japan, India, Europe, and the US have all sent probes to the moon to look for Helium 3 to use for energy here on earth.

Doesn't anyone think of what would happen if we start mining the moon, what it will do to Earth?

2007-11-19 02:39:51 · 9 answers · asked by Anonymous in Astronomy & Space

2007-11-19 02:35:14 · 8 answers · asked by Anonymous in Astronomy & Space

Two solutions, a 0.1% (m/v) albumin solution and a 2% albumin solution, are separated by a semipermeable membrane. (Albumins are colloidal proteins)

a) Which solution has the higher osmotic pressure?
b) In which direction will water flow initially between the solutions?

2007-11-19 02:34:41 · 1 answers · asked by Amy 1 in Chemistry

2007-11-19 02:32:57 · 8 answers · asked by hudi 1 in Engineering

please show work

2007-11-19 02:32:46 · 4 answers · asked by michael s 1 in Mathematics

please show work

2007-11-19 02:31:48 · 6 answers · asked by michael s 1 in Mathematics