Science & Mathematics - 12 August 2007

express : squareroot of 3 + i
in polar form

2007-08-12 15:19:02 · 4 answers · asked by Anonymous in Mathematics

2007-08-12 15:18:08 · 21 answers · asked by Anonymous in Zoology

nah

2007-08-12 15:18:00 · 4 answers · asked by Anonymous in Astronomy & Space

My dilemma relates to rocket man aging more slowly than his counterpart on Earth. What if our traveler is stationary, but the Earth moves away from him instead of him moving away from the Earth? (Ignore the effects of Earth leaving it's orbit, please) Is it the Earth folks that age more slowly, then? The relative motion between the traveler and the Earth is the same either way, and so why would it matter who's doing the moving?

If the answer is that it's not the relative velocity between the two that matters, but rather absolute velocity referenced to some theoretical motionless state, how could that state ever be determined? Also, if we imagined the whole universe was moving in some direction at high speed, and rocket man were traveling the opposite direction at the same speed, he would become motionless relative to this reference? So, instead of elongating in the direction of travel, he would shrink?!

Thanks for your help
Signed,
Relatively Confused

2007-08-12 15:17:54 · 7 answers · asked by philmeta11 3 in Physics

2007-08-12 15:17:34 · 3 answers · asked by Anonymous in Medicine

2007-08-12 15:16:26 · 9 answers · asked by mj 1 in Astronomy & Space

Use a calculator to approximate sqrt3/5 to the nearest hundredth Thank you

2007-08-12 15:16:24 · 5 answers · asked by vadataborn 2 in Mathematics

2007-08-12 15:14:44 · 5 answers · asked by Sandy A 1 in Astronomy & Space

It was so very tiny, just about the size of a broken shoe lace, charcoal colour with a tiny yellow or white spot on top just behind its head. It was on the bike trail in a park, eating ants and warming up in the sun

2007-08-12 15:13:32 · 3 answers · asked by million$gon 7 in Zoology

2007-08-12 15:08:56 · 12 answers · asked by St. Toad 4 in Astronomy & Space

Please check up also the question from Mik_K:
" What is the highest frequency of light, and why?"

I thought, a photon gets unstable at some frequency(-enrgy)-limit and decays into elementary particles like it happens in the immediate vicinity of a super massive nucleus (decay of vacuum, huge em-fielddensity). Is this right?
And, must a possible limitation on the energy of a photon be nessecerilly explained by plancks length? I guess, Einstein would give a quantummecanics-free explanation on this issue.

2007-08-12 15:05:01 · 4 answers · asked by Anonymous in Physics

.194 times a million =

57,000,000 in scientific notation would be?

2007-08-12 15:04:42 · 7 answers · asked by Anonymous in Mathematics

I am specifically referring to the red mushrooms known to have about a million spores.

2007-08-12 15:01:10 · 2 answers · asked by Anonymous in Botany

2007-08-12 15:00:30 · 1 answers · asked by pinmason 1 in Astronomy & Space

x - y + 3z = 8, 3x + y - 2z = -2, 2x + 4y + z = 0 (can u guys show me, by breaking it down how u got the answer)

2007-08-12 14:59:53 · 2 answers · asked by d w 1 in Mathematics

I heard it said both ways. Which is correct?

2007-08-12 14:59:28 · 7 answers · asked by Anonymous in Medicine

2007-08-12 14:59:22 · 1 answers · asked by boybits 1 in Engineering

2007-08-12 14:59:10 · 14 answers · asked by Anonymous in Biology

where online can i find information that explain the following math courses

positive and negative numbers, absolute value, and square roots
operations with algebraic expressions, including polynomials, roots , exponents, factoring, and simplifying algebraic fractions
factoring quadratic equations, and solving equations and inequalitie

Place value, arithmetic and word problems for whole numbers, decimals, fractions, integers, and percents.
Solving linear equations, collecting like terms
Area and perimeter of rectangles

2007-08-12 14:58:58 · 4 answers · asked by uncrowned ruler 3 in Mathematics

2007-08-12 14:55:46 · 5 answers · asked by boybits 1 in Engineering

2007-08-12 14:55:22 · 2 answers · asked by herliati2004 1 in Chemistry

My company, SunnIght Solar, wants to manufacture a solar powered water purifier - I have reviewed the UC and MIT web sites, however, the information on the problems with UV and PVC are not clear. markbent@sunnightsolar.com

2007-08-12 14:52:25 · 2 answers · asked by mark b 1 in Physics

What time approximately and how often do the shooting stars from the perseid happen tonight.

2007-08-12 14:51:44 · 1 answers · asked by Anonymous in Astronomy & Space

are they still goign in the daylite?

2007-08-12 14:50:53 · 6 answers · asked by French Fry 5 in Astronomy & Space

2007-08-12 14:45:16 · 2 answers · asked by ♥hollyboll♥ 4 in Biology

2007-08-12 14:44:24 · 3 answers · asked by Mercury 2010 7 in Astronomy & Space

An arithmetic student needs an average of 70 or more to receive credit for the course. She scored 84, 66, and 93 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course.

2007-08-12 14:40:38 · 22 answers · asked by ray 1 in Mathematics

I live in Jacksonville, Fl and keep seeing different times for when to see it. I want to know which direction I should look and what time is the best time to look.

2007-08-12 14:39:34 · 1 answers · asked by Katie T 1 in Astronomy & Space

whats the best time and what direction should i look for it i live in nepa

2007-08-12 14:37:57 · 3 answers · asked by pdomanski1982 1 in Astronomy & Space

2007-08-12 14:37:37 · 6 answers · asked by :) Hai. 3 in Astronomy & Space