Science & Mathematics - 23 November 2007

2007-11-23 06:33:54 · 6 answers · asked by nafiseh g 1 in Mathematics

plz hurry :D i wanna know his full name .thnx

2007-11-23 06:32:52 · 3 answers · asked by ulter of anger 1 in Mathematics

2007-11-23 06:32:33 · 4 answers · asked by nafiseh g 1 in Mathematics

if it is irrational find two consecutive integers between which its graph lies on the number line

2007-11-23 06:25:58 · 7 answers · asked by Anonymous in Mathematics

Show all your steps and explain your reasoning.

2007-11-23 06:25:02 · 6 answers · asked by Angelical Abby 4 in Astronomy & Space

if it is irrational find two consecutive integers between which its graph lies on the number line. -81

2007-11-23 06:23:43 · 1 answers · asked by Anonymous in Mathematics

If r=2m and v=7m/s when the floor drops away, what is the minimum coefficient of friction?


when i tryed this problem i got .1 but i think it is wrong because i dont know how to work out the problem

2007-11-23 06:19:08 · 1 answers · asked by the_hockey_guy1990 1 in Physics

Anything to the zero-th power is zero, but zero to any power is one, so what does this mean for zero to the zero-th power?

2007-11-23 06:09:55 · 5 answers · asked by soccermonster 1 in Mathematics

2007-11-23 06:09:49 · 7 answers · asked by Anonymous in Physics

I need some homework help. I'm supposed to solve the following equations by completing the square and solving for x. A thorough explanation along with the answer would be greatly appreciated. :)

2x^2-24x+2= -62

and

x^2+x+1=7/4

2007-11-23 06:08:36 · 3 answers · asked by anonymous 1 in Mathematics

In the book LOST IN SPACE (The Fall of NASA and the Dream of a New Space Age) Greg Klerkx compares the early days of aviation and air travel, the U.S. governments roll in it's developement, with NASA and the dreams of space travel.
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Only 50 years seperates the Wright brothers from intercontinental passenger jet travel.
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In the 50 years since Sputnik and the dawn of the space age space travel is still only for the chosen few millionaires and astonauts under the guise of "doing good science".
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In the book, the authors contention is that NASA has let the public down in an effort to justify it's own continued existance.
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Agree or Disagree? and any thoughts on the subject.
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2007-11-23 06:07:21 · 7 answers · asked by ericbryce2 7 in Astronomy & Space

2007-11-23 06:04:54 · 3 answers · asked by Anonymous in Mathematics

how do you write resolution, e.g. per cm or something like that and what do you do to obtain this answer

also how do you write a ratio for two resolutions of two images

2007-11-23 06:03:49 · 2 answers · asked by Anonymous in Physics

???????? help me

2007-11-23 06:02:30 · 4 answers · asked by irockyoursocks30 1 in Other - Science

Multiply. (–2.5)(20)

I got -50, is this correct?

2007-11-23 06:00:49 · 4 answers · asked by Anonymous in Mathematics

2007-11-23 05:58:58 · 1 answers · asked by ernest 1 in Mathematics

2007-11-23 05:51:57 · 2 answers · asked by Anonymous in Engineering

how to i answer this sort of question? :
Investigate the relationship between a and be if:
(3a)b = 2a + b
I don't understand how to answer this question.
P.S the a and the b are supposed represent indices but i couldnt get a symbol similar so i just put a and b.
Please help!

2007-11-23 05:51:30 · 8 answers · asked by Anonymous in Mathematics

The length of c of the hypotenuse of a right triangle is a function of the length of a and b of the legs. State a rule for the function c(a,b). Thanks a lot for the help.

2007-11-23 05:50:18 · 3 answers · asked by Gabe E 1 in Mathematics

I realize that each one is n^3 but i don't know why all the even numbers are positive and the odds are negatives...please help?

2007-11-23 05:50:17 · 4 answers · asked by Anonymous in Mathematics

answer but i also want to know how it is done

2007-11-23 05:49:50 · 3 answers · asked by MEMORY YOU 1 in Mathematics

2007-11-23 05:48:58 · 8 answers · asked by Anonymous in Physics

This problem is kinda difficult, I haven't got a proof so far:

Let P be a polynomial of degree n, with real coefficients, such that P(x) is in [-1, 1] for every x in [-1, 1]. Show that P'(x) is in [-n^2 , n^2] for every x in [-1, 1].

I think the solution has something to do with Chebyshev's polynomials.

2007-11-23 05:45:25 · 3 answers · asked by Steiner 7 in Mathematics

I think b and c

2007-11-23 05:44:14 · 3 answers · asked by blondie42 1 in Mathematics

I know the stethoscopes used in the NICU are different than regular stethoscopes, and I've looked at some, but I don't know which stethoscope is the best one.

Her regular stethoscope is a Littmann, and I know she likes it a lot. I've been looking at the 28" Littmann Classic II Infant Stethoscope. Is that a good choice? I found it on sale for about $70. I wouldn't mind spending up to $100 for one that's good quality.

2007-11-23 05:39:21 · 7 answers · asked by JMB1983 1 in Medicine

Give the domain, range, and zeros of the function f(x)= the square root of x^2 -16. Thanks in advanced for the help.

2007-11-23 05:39:19 · 6 answers · asked by Gabe E 1 in Mathematics

2007-11-23 05:38:10 · 2 answers · asked by Anonymous in Engineering

If everything in the cosmos started with this thing, then what can we think about what was it like before the explosion? In terms of time, place etc.

2007-11-23 05:34:39 · 11 answers · asked by Ghost of Rasputin 2 in Astronomy & Space

Define Half-Life in a paragraph.

2007-11-23 05:32:24 · 5 answers · asked by aaaaaaaa 1 in Mathematics

I understand that black holes are still little more than a theory but can they move? It is said that there is a black hole in the middle of our galaxy. If there is when are we gonna get sucked in?

2007-11-23 05:29:52 · 7 answers · asked by Tonx 3 in Astronomy & Space