Science & Mathematics - 26 October 2007

a. 2 ^–1 + 4^ –1
b. ( 2/5 )^ -3

Can someone please explain?

2007-10-26 04:19:08 · 8 answers · asked by Anonymous in Mathematics

Is there any good sites explaining the physics of air bags, this is for a research assignment. Any ideas, or explanations would be appreciated.

2007-10-26 04:16:52 · 1 answers · asked by Anonymous in Physics

a malaysian join Soyuv TM11 to go up to iss and stayed there for eleven days but the other 2 crews staying at iss for 6 months. Do u think he has enough experience staying in the iss for 11 days only.

2007-10-26 04:11:09 · 2 answers · asked by miafre 1 in Astronomy & Space

An algebraic word problem.
I need a little help.
I'm not that great at it.
Help me!!!

2007-10-26 04:08:46 · 12 answers · asked by max 1 in Mathematics

lets say it got close but not close enough to envelop the earth. If you were underground or down the mines would you survive, could the heat reach down there?

2007-10-26 04:06:41 · 7 answers · asked by kf 3 in Earth Sciences & Geology

Is it a coincidence that we don't easily get to see some animals at Zoos?

2007-10-26 04:03:49 · 13 answers · asked by Anonymous in Zoology

2007-10-26 03:56:50 · 15 answers · asked by Be~ing 2 in Earth Sciences & Geology

help!

2007-10-26 03:55:00 · 2 answers · asked by malteaser 2 in Mathematics

I'm a student all BSU. While walking from a class I spotted a huge neon orange spider with striped legs. The abdomen was nickel sized with medium legs. I've lived in Indiana for 12 years and have never seen anything like this. I thought that it was an orb spider but the pictures I saw didn't look close enough. Any ideas?

2007-10-26 03:50:08 · 4 answers · asked by Anonymous in Zoology

what giudlines help you think that your answer is right.

2007-10-26 03:45:12 · 1 answers · asked by Anonymous in Physics

once u find the center of a cell or atom u come across mostly space right? so whats inside that space? do u ever get to an actual center point of an atom? or would it go on forever into its self? i think u know what i mean... any ideas?

2007-10-26 03:44:17 · 5 answers · asked by Anonymous in Astronomy & Space

once u find the center of a cell or atom u come across mostly space right? so whats inside that space? do u ever get to an actual center point of an atom? or would it go on forever into its self? i think u know what i mean... any ideas?

2007-10-26 03:43:56 · 5 answers · asked by Anonymous in Physics

2007-10-26 03:42:57 · 5 answers · asked by softkisser31 1 in Weather

2007-10-26 03:42:11 · 8 answers · asked by Anonymous in Physics

When a rocket launches, the force of the gases being expelled from the rear of the rocket help propel it upwards. Which of Newton’s 3 laws does this illustrate?

this question stumped me and I have no idea why. Any answers to this?

2007-10-26 03:35:29 · 7 answers · asked by NikkieNaccc:) 1 in Astronomy & Space

How could the universe form from nothing? If you know of any literature (books or primary literature) or even links, can you please inform me? I believe the universe formed via the Big Bang theory, but the one thing I don't understand is how did it form from "nothing." What pulled the trigger? Thank you.

2007-10-26 03:34:50 · 9 answers · asked by Anonymous in Astronomy & Space

2007-10-26 03:34:06 · 8 answers · asked by bhaskar rajvanshi 1 in Astronomy & Space

...changed during the history of the solar system?
e.g. older craters on the moon are generally bigger than younger craters, why is this?

2007-10-26 03:34:02 · 4 answers · asked by missmollie 4 in Astronomy & Space

2007-10-26 03:29:53 · 1 answers · asked by Ciavana 3 in Mathematics

2007-10-26 03:29:41 · 6 answers · asked by Anonymous in Earth Sciences & Geology

Solve the following equations in terms of pi in the interval [0,2pi].

2007-10-26 03:25:49 · 2 answers · asked by Ciavana 3 in Mathematics

A belt connects a pulley of radius 8 centimeters to a pulley of radius 6 centimeters. Each point on the belt is traveling at 24 centimeters per second. Find the angular velocity of each pulley.

picture available here http://i240.photobucket.com/albums/ff163/aari07/num3.jpg

2007-10-26 03:25:41 · 1 answers · asked by Princess 2 in Mathematics

gary can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 34 miles, spending 2 hrs. on level ground and 5 hrs. on uphill terrain. find his average speed on level ground.

2007-10-26 03:24:14 · 2 answers · asked by amy f 1 in Mathematics

In an article today, 1/3 of Americans believe in ghosts, so I ask: at the atomic level, just what are ghosts comprised of? If people can see them and/or feel them, they must be comprised of atoms, but what kind would you figure?

2007-10-26 03:21:52 · 8 answers · asked by Expat 6 in Physics

2007-10-26 03:21:48 · 3 answers · asked by jnester0289 1 in Chemistry

Could you physically die from being in high levels of pain?

2007-10-26 03:21:15 · 7 answers · asked by Devolution 5 in Medicine

100.0 mL of 2.00 M HBr is mixed with 100.0 mL of 2.00 M KOH in a coffee-cup calorimeter. The temperature of the solution increases from 20.0 C as a result of the reaction. Assume that the calorimeter loses a negligible amount of heat, that the total volume of the final solution is 200.0 mL, the density of the solution is 1.00 g/mL, and that the specific heat of the solution is 4.18 J/g-K

2007-10-26 03:17:53 · 2 answers · asked by jnester0289 1 in Chemistry

2007-10-26 03:17:04 · 10 answers · asked by ralph 1 in Physics

were do space entirely come from.

2007-10-26 03:14:58 · 11 answers · asked by Angel H 1 in Astronomy & Space

1. An object is projected upward from the top of a tower. Its distance in feet above the ground after t seconds is given by s(t)=-16t^2+64t+80. How many seconds will it take to reach ground level?
a. 1 second
b. 4 seconds
c. 5 seconds
d. 8 seconds

2. From a square piece of cardboard with width x inches, a square of width x - 3 inches is removed from the center. Write the area of the remaining piece as a function of x.
a. f(x) = 6x - 9
b. f(x) = 6x + 9
c. f(x) = 2x^2 - 9
d. f(x) = 2x^2 - 6x – 9

3. If P(4, -5) is a point on the graph of the function y = f(x), find the corresponding point on the graph of y = 2f(x - 6).
a) A(1, 8)
b) B(2, -5)
c) C(6, 8)
d) D(10,-10)

4. Find all roots of the polynomial x^3 - x^2 + 16x - 16.
a. 1, 4, -4
b. -1, 4, -4
c. -1, 4i, -4i
d. 1, 4i, -4i

5. Find a polynomial with leading coefficient 1 and degree 3 that has -1, 1, and 3 as roots.
a. x^3 - 3x^2 - x + 3
b. x^3 - 3x^2 + x - 3
c. x^3 + 3x^2 - x - 3
d. x^3 + 3x^2 + x + 3

2007-10-26 03:11:32 · 1 answers · asked by jane 1 in Mathematics