Science & Mathematics - 28 June 2007

So I was looking at the size of my monitor. 14 inches according to every box and label. I got out my tape measure and the tape measure says it's about 15.5 inches. So I calculated the number of pixels (~2074 in the native resolution of the monitor) and converted that number to inches and it came out right at 14 inches.

Did I miscalculate something or is there some weird difference in inch measurements?

Perhaps it's something to do with the resolution of the monitor?

2007-06-28 15:45:37 · 3 answers · asked by Artimaeis 1 in Mathematics

we are matter and everything are atoms. what is empty spaceÉ. Is nothing made out of atomsÉ. Is everything atomsÉ

2007-06-28 15:41:19 · 2 answers · asked by Lee Edward 1 in Physics

I am currently in a chemistry 101 class and my professor adamantly believe that colloids fall under heterogenous mixtures only . I have researched on a few definitions of colloids and some sources say that it is a heterogenous mixture, others say its a homogenous mixture. And some even say that it is both. Even the wikipedia source is confusing because under colloids it is considered a heterogenous mixture but when you look at the definition of mixtures and the different kinds, colloids (or colloidal dispensions are referred to as homogenous) fall under homogenous mixture. So if it is both, what then makes a colloid a homogenous mixture and a heterogenous mixture? Thanks!

2007-06-28 15:39:53 · 8 answers · asked by Kicks007 2 in Chemistry

2007-06-28 15:37:58 · 5 answers · asked by Desi 1 in Weather

2007-06-28 15:36:33 · 4 answers · asked by Anonymous in Other - Science

2007-06-28 15:34:24 · 7 answers · asked by kenane w 1 in Chemistry

In how many ways can you arrange the letters of the word think so that the t and the h are seperated by at least one other letter.

Thanks for the help!

2007-06-28 15:28:32 · 2 answers · asked by Icobes 2 in Mathematics

nitrogen oxygen argon&carbon diaxide are? a.4most comon gases in the atmosphere b.CFCs c.Causes of the green..

2007-06-28 15:27:56 · 4 answers · asked by kenane w 1 in Chemistry

A. circleB. zeroC. surface of a sphereD. threeE. twoF. oneG. hyperbolaH. greater than I. less thanJ. equal toK. infiniteL. elliptic planeM. hyperbolic planeN. lineO. luneP. pseudosphere
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1: In elliptic or spherical geometry a _____ is a great circle.
2: Hyperbolic geometry is base on the Gauss, Lobachevski, and Bolyai Parallel Postulate which states that, through a point not on a line, there exists a _____ number of lines parallel to the given line.
3: In Euclidean geometry, there can be _____ right angle(s) in a triangle.
4: Euclid's Parallel Postulate states that through a point not on a line there exists _____ line parallel to a given line.
5: In hyperbolic geometry, the standard coordinate plane is replaced by a _____.
6: In elliptic or spherical geometry, the sum of the measure of the angles in a triangle is _____ 180 degrees.

2007-06-28 15:27:55 · 2 answers · asked by Anonymous in Mathematics

2007-06-28 15:26:43 · 2 answers · asked by Anonymous in Engineering

If not, what do you think is really going on?

2007-06-28 15:23:31 · 10 answers · asked by ddzaszcxascs 2 in Astronomy & Space

A machine in my neighbor's yard is driving my crazy. I want someone to measure the noise level to see if it violates the city ordinance.

2007-06-28 15:22:32 · 4 answers · asked by Anonymous in Engineering

how is it impossible?

2007-06-28 15:20:36 · 4 answers · asked by Anonymous in Physics

When a Doctor or a pyshist inject a Vaccine in your body its just a wekaer verson of the virus thats going in what if it gets stronger and mulipulates when the real virus gets into you wouldn't it make the Real Virus Stronger sence the weaker on is in play?

2007-06-28 15:18:40 · 8 answers · asked by ? 1 in Biology

I tried measure the weight of 10 mL of deionzied water and noticed it didn't weight exactly 10 g on scale but couple grams greater (yes, I did reset the scale before measuring and subtracted the weight of the beaker) So what is the real cause of this?

2007-06-28 15:15:50 · 9 answers · asked by Ivy 1 in Chemistry

I stopped smoking for three months and now within the last three months have been smoking marijuana at least twice a week but not more than 4 times a week. I have under 10% body fat and I'm in phenomenal physical condition. I haven't smoked for 4 days now and may have a drug test within the next 7-10 days. Will I pass a drug test? If not could someone recommend a reputable masking agent that would allow me to pass the test?

thanks

2007-06-28 15:14:39 · 13 answers · asked by the end is near? 1 in Medicine

this question's for those fly-ers to answer. (astonaught) who have gone there in the outer space.,but wont tell us what really is the real score out there.regarding seeing things that is of great importance supposed to be publized but they keep it hidden instead.it is true, some sorts of flying objects,probably U.F.O.'s are great observer watching us develope ourselves in adopting the literazation of the spaces of the outer terretories far from mother earth jurisdictions.but, how far have we gone then,?please tell me what's your answer.

2007-06-28 15:11:39 · 7 answers · asked by Anonymous in Astronomy & Space

Why is attempting to raise endangered species in a zoo a stop gap measure?

2007-06-28 15:10:52 · 3 answers · asked by Anonymous in Zoology

What is the increase in altitude that the bob travelled?

2007-06-28 15:10:47 · 3 answers · asked by Ase 2 in Mathematics

an experimental car is found to have an efficiency of E(v),in miles per gallon of fuel,where v is the speed of the car.For a certain 4 hour trip, if v=v(t) is the speed of the car t hours after the trip started,what is the integral that represents the no. of gallons of fuel that the car used on the trip.

2007-06-28 15:10:20 · 2 answers · asked by meagainsttheworld_shakur 1 in Mathematics

2007-06-28 15:09:53 · 11 answers · asked by Anonymous in Mathematics

Describe how this can occur in North America. Use one example of a species.

2007-06-28 15:08:15 · 1 answers · asked by Anonymous in Earth Sciences & Geology

2007-06-28 15:05:40 · 4 answers · asked by marie 1 in Mathematics

2007-06-28 15:04:49 · 10 answers · asked by James 1 in Other - Science

I can derive the relativistic equations for time dilation and length contraction for Einstein's theory of relativity; is there a similar derivation for relativisitic mass increase? I figure it must have something to do with the conservation of momentum at relativistic speeds, but I have not yet seen a good derivation.

2007-06-28 15:04:38 · 3 answers · asked by Rob K 2 in Physics

becasue it looks like they don't have sex organs so how do they reproduce?

2007-06-28 14:53:19 · 5 answers · asked by Anonymous in Biology

2007-06-28 14:51:28 · 7 answers · asked by chrisamethyst 4 in Astronomy & Space

Occasionally things literally just disappear. We have lost the DVD remote for the bedroom...it was there one day and literally gone the next. We have hunted high and low, and turned the room upside down to no avail.
My new theory is that it has slipped through a rare hole in the space/time continuum and into a parallel universe.
In this place, they have the opposite problem to us. Things just randomly appear that you don't ever recall buying or having.
Anyway - has anything ever vanished for you? Odd socks, teacups, jewellery, pens?
I'm telling you - it's in that parallel universe, and lost for good until we work out how to get there and get all our stuff back.

2007-06-28 14:50:09 · 15 answers · asked by thevinternet 2 in Astronomy & Space

I've heard that you freeze, or boil, or ripped apart, or nothing happens at all. Would the low tempreture counteract the effects of the negative pressure?

2007-06-28 14:39:32 · 10 answers · asked by sovietwarhawk 1 in Astronomy & Space

I have a train set transformer that puts out 16VDC rated at 7va. I want to use a pot as a rheostat to control the current. how many watts does the potentiometer need to be able to handle?

2007-06-28 14:39:12 · 5 answers · asked by vegan_bob 2 in Engineering