Science & Mathematics - 21 August 2007

2007-08-21 12:15:31 · 9 answers · asked by Anonymous in Physics

2007-08-21 12:14:14 · 4 answers · asked by Michael H 2 in Mathematics

2007-08-21 12:14:09 · 7 answers · asked by mikeyyyyyyyyyyyyyyyyyyyyyyyyyyyy 1 in Mathematics

I have always been a major supporter of space exploration and the space program in general. But once again, to see a potential shuttle disaster because of another piece of frozen insulation angers me. Did we not learn from the Challenger/Columbia disasters? Why are we still using an obviously antiquated lift system?...and when are we going to shift technology to a safer, more advanced orbiter?

2007-08-21 12:13:02 · 9 answers · asked by Jeb R 1 in Astronomy & Space

y=3x-10
y=2x-5

2007-08-21 12:10:02 · 7 answers · asked by ty c 1 in Mathematics

Hey guys, I have been having trouble with the following types of problems and was wondering if I could get a couple solutions.

1. Let |p|<1

SUM of (i*p^i)
(1
2. 1. Let |p|<1

SUM of ((i^2 )*(p^i))
(1

2007-08-21 12:08:58 · 2 answers · asked by Anonymous in Mathematics

Construct a truth table for ~(p v q)
Please work out.

2007-08-21 12:08:51 · 1 answers · asked by Tim M 1 in Engineering

2007-08-21 12:08:21 · 3 answers · asked by Anonymous in Chemistry

a. they are periodic disturbances.
b. they do not transmit energy.
c. they occur at the interface of two surfaces.
d. they are influenced by the gravitational pull of the moon.
e. they result in significant movement of water.

2007-08-21 12:07:54 · 5 answers · asked by sikhism4life88 1 in Geography

You always hear people talking about how the kid who was valedictorian in highschool turned out to be a doctor.

I realllly want to be a doctor. However, I'm no valedictorian. I have about a 4.2 GPA on a 5.0 scale and my most recent ACT score was a 24. I SUCK at chemistry, im pretty good at math, and im pretty good at biology and human physiology.

I'm willing to work hard and college and i plan to do pre-med and some type of biology.

Realistically should i be trying my luck in Medicine? It's something i've wanted to do since i knew what a doctor was. I just feel like i'm giving myself false hope. I'm deffinetly not stupid but I'm not the smartest out there either.

2007-08-21 12:07:43 · 11 answers · asked by bubblicious fun 1 in Medicine

I think it may involve a certian type of dimensional traveling partical but I am not very sure.

2007-08-21 12:03:43 · 11 answers · asked by The Doctor 2 in Physics

Ammonium nitrate is a common agricultural fertilizer, an ingredient in fireworks, and was one of the components of the bomb used in the terrorist attack on the federal building in Oklahoma City in 1995. How many liters of gas at 300° C and 1 atm are produced by the explosive decomposition of 12.0 kg ammonium nitrate to nitrogen gas, oxygen gas and water vapor.

2007-08-21 12:01:33 · 1 answers · asked by meisawesome 2 in Chemistry

I am a 32 year old diabetic female. People are suggesting I should have some bloodwork done since my pancreas is failing along with my kidneys. I also have some nueropathy and I had some angina about a month and a half ago. I was just wondering because this one person suggested it so I thought I would ask my doc some questions. What should I be prepared to ask my doc? Thanks for any input.

2007-08-21 11:58:43 · 2 answers · asked by miss_pagan_girl 1 in Medicine

i need help with my geometry homework.... can u guys atleast answer one of these questions.
DIRECTIONS: SHOW CONJECTURE IS FALSE BY FINDING A COUNTEREXAMPLE.

1.) THE DIFFERENCE OF TWO WHOLE NUMBERS IS A WHIOLE NUMBER.

2.) THE ABSOLUTE VALUE OF THE SUM OF TWO NUMBERS IS THE SUM OF THEIR ABSOLUTE VALUES, MEANING...Ia+bI = IaI + lbl.

3.) IF m doesnt equal -1, then m/m-1 > 1.

2007-08-21 11:54:20 · 11 answers · asked by Nida F 1 in Mathematics

I'm doing a paper on a CNC turning center and I can't find any information what so ever. Please help.

2007-08-21 11:53:37 · 3 answers · asked by The Wraith 2 in Engineering

2007-08-21 11:53:08 · 15 answers · asked by williamsa80 1 in Astronomy & Space

Please work out, so I can understand it. Thanks

2007-08-21 11:52:21 · 2 answers · asked by Tim M 1 in Mathematics

a) two-thirds empty
b) one-half empty
c) one-half full
d) two-thirds full

2007-08-21 11:48:38 · 13 answers · asked by Alexander 6 in Physics

2007-08-21 11:45:16 · 4 answers · asked by jen b 1 in Mathematics

2007-08-21 11:44:53 · 2 answers · asked by jen b 1 in Mathematics

Let x_n be a sequence of real numbers and w_n a sequence of positive weights. Let s_n = (Sum(i= 1,n ) w_n x_n)/(Sum (i=1, n) w_n) be the sequence of the weighted means of x_n with respect to w_n. Show that, if Sum (w_n) diverges, then in the extended real system, the following inequalities hold:

lim inf x_n <= lim inf s_n <= lim sup s_n <= lim sup x_n

(of course, the middle inequality is always true, and it suffices to show either the left or the right inequality).

Show these inequalities don't need to be true if Sum (w_n) converges.

Thank you for any help

2007-08-21 11:42:09 · 1 answers · asked by Anonymous in Mathematics

Many might know me for wise *** questions, But I was off today, and watched a LOT of "ghost" stuff on the web. I don't know anything about photoshop, but I am good with an slr. I can duplicate everything there.
With todays technology, how can you justify photographs as evidence.

2007-08-21 11:41:27 · 11 answers · asked by Anonymous in Paranormal Phenomena

Johnny was ill and had to take a test a day late.
His 96 raised the class average from 71 to 72.

How many students INCLUDING Johnny took the test?

Show all work and explain!

Please help i cant figure it out....

2007-08-21 11:37:07 · 10 answers · asked by Anonymous in Mathematics

Hi, Sorry to anyone who answered my last question I put shell instead of Egg.....I just want to know if it will fall off eventualy and usually how long does it take? and can you feed them or should i just let it be..its outside anyways, hes in the garden now.

Thanks.

2007-08-21 11:31:59 · 2 answers · asked by STXgrl81 2 in Zoology

I'm a U.S. citizen, and this is something that puzzles me at least twice a year. The solstices are usually mentioned on the radio, on the news on television and in newspapers. The media--and our citizens--are always saying that June 21, for instance, is the beginning of summer. By my logic, it's the middle of summer, and the beginning came 1 1/2 months before. On what some call the cross-quarter days.

Apparently, most of the world does consider solstices and equinoxes as the middle of seasons. Hence Shakespeare's play, "A Midsummer Night's Dream". Which would then refer to the Summer Solstice, probably on June 21 or June 22, by our calendar.

2007-08-21 11:28:34 · 11 answers · asked by silverlock1974 4 in Astronomy & Space

When it rains, in the spring or maybe the summer for the first time, why does the air almost smell metalic?

2007-08-21 11:28:21 · 5 answers · asked by Anonymous in Weather

Or is it just the winds, storm surge and rain?

2007-08-21 11:24:00 · 4 answers · asked by Anonymous in Weather

If the big bang is unlike a traditional explosion in that space itself is expanding. How much smaller would space have been prior to the big bang? If everything was packed closely together before it "exploded" Then why would light take millions of years to reach us since all matter would have been in close proximity to each other. I would think that all stars and galaxies would be visible to us today because billions of years ago we were much closer to them than we are today.

Additional questions would be, if there is not enough matter in the universe to stop it's accelleration outward, then the universe' ultimate end is cold and dark without chance of rebirth? If that is the case then how could the universe evan have begun? Where could all the matter come from and how did it get there?

2007-08-21 11:19:00 · 9 answers · asked by Anonymous in Astronomy & Space

I want to make a robot where when you touch the robot with a control device.. like a remote.. the remote is powered by the robot itself enough to allow you to push the buttons sending the signal to the robot telling it what to do.. does anyone know of anything like this? I am trying to search for this but can't find anything...

2007-08-21 11:18:58 · 3 answers · asked by Anonymous in Engineering

It must fit in a single answer.
Any mathematical operators other than + * ^ ! (for addition, multiplication, exponentiation and factorial respectively) must be clearly defined within your answer.
All words used must be in the American Heritage online dictionary (at www.bartleby.com/61/) or defined in your answer.
The number must be exact and unambiguous.
You cannot refer to physical quantities (such as the number of atoms in the universe, or the speed of light).
It must be finite.
Reference to other people's answers is allowed, as long as it still meets all the other conditions. (eg "all the other answers added together" would win if all the other answers were simple values, but if 2 people wrote that, they would both lose as it becomes a self-referential paradox and therefore ambiguous!)

Good luck, The biggest number wins!

2007-08-21 11:09:09 · 50 answers · asked by ____ 2 in Mathematics