Science & Mathematics - 3 July 2006

Let's imagine I have a vacuum chamber bisected by a wall of glass (2 coaxial chambers), and I conduct a "light speed" experiment in which light is introduced into the end of one chamber and shined through the opposite end of the other chamber. c in the first chamber is 299,792,458 m/s and c in the second chamber is 299,792,458 m/s; however, c through the glass is (arbitrarily) 214,137,470 m/s (5/7 c in a vacuum).

The photons impart a very small amount of energy to the glass as they are slowed; however, they accelerate to their original speed upon exiting the glass. How is this possible? Whence cometh the energy to accelerate those photons?

I realize the accelerated mass is going to be infinitesimal, and that the rate of acceleration is going to be near infinity, but the energy still has to have come from somewhere.

2006-07-03 11:21:47 · 5 answers · asked by wireflight 4 in Physics

Inheritance: Two Trait Crosses, Incomplete Dominance, Multiple Alleles, And X-Linked Inheritance

A women that is a carrier for haemophilia marries a haemophiliac man. what is the probability that their children will have haemophila?

I am not asking fr anyone to DO my homework, but it is a good wat to check my answers and help me. I am doing Bio 12 thru correspondese and appreciate the help

2006-07-03 11:19:43 · 7 answers · asked by starruinstarla 1 in Biology

I sort of know what it is but I'm confused why I don't always get the right answer. Can someone explain to me how I can calculate half-life the right way?

2006-07-03 11:15:07 · 6 answers · asked by Etania 7 in Chemistry

2006-07-03 11:02:58 · 39 answers · asked by ann n 3 in Mathematics

2006-07-03 11:01:38 · 6 answers · asked by scott102528 1 in Chemistry

Is it only the USA? Or is Russia still into this?

2006-07-03 10:54:33 · 7 answers · asked by Giggly Giraffe 7 in Astronomy & Space

http://uk.answers.yahoo.com/question/index;_ylt=AgRq3wIg2aaE0rUsXtnJ7x0GBgx.?qid=20060703144714AADTI9M

2006-07-03 10:54:09 · 23 answers · asked by hasan05842 3 in Earth Sciences & Geology

http://thatvideosite.com/view/2746.html
I think this video is total BS, if you can see through the objects then howcome you cant see his face when the object goes infront of him?

2006-07-03 10:53:12 · 4 answers · asked by hectortuba 3 in Other - Science

Sqrt=square root and i=square root of -1
(-1+Sqrt(3)i)^3= 8 this line is right
-1+Sqrt(3)i = 2 i took the cube root of each side
Sqrt(3)i = 3 added 1 to each side
i = Sqrt(3) divided both sides by the Sqrt(3)
-1 = 3 square each side
obviosly the last line is not true but then where is the mistake?

2006-07-03 10:47:14 · 16 answers · asked by locomexican89 3 in Mathematics

2006-07-03 10:43:51 · 6 answers · asked by da chet 3 in Zoology

Fig Newton?

2006-07-03 10:41:41 · 2 answers · asked by Anonymous in Physics

2006-07-03 10:36:26 · 10 answers · asked by wewedc11 1 in Other - Science

I would like to connect an LCD to a solderless breadboard. I'm planning to use an IDE cable to connect the 16 pins on the LCD's header to the breadboard. However, I need to add pins to the connector that will plug into the breadboard, and I want the pins to be secure. Any suggestions on adhesives?

2006-07-03 10:36:02 · 11 answers · asked by modi_ponens 2 in Engineering

2006-07-03 10:35:13 · 12 answers · asked by coolkenny45 2 in Mathematics

2006-07-03 10:34:55 · 14 answers · asked by Asq1 1 in Earth Sciences & Geology

Why did caucations evolve with lighter features? What could have happened in our evolution that made us different in that one distinct way?

2006-07-03 10:30:34 · 23 answers · asked by Anonymous in Other - Science

2006-07-03 10:29:16 · 6 answers · asked by Giggly Giraffe 7 in Astronomy & Space

Why does bull always run after red color?

2006-07-03 10:28:34 · 36 answers · asked by Sweetypie 1 in Zoology

I believe the egg came first...this is my theory---
- A dinosoar lays an egg...some weird cell thing happens...the egg hatches....a chicken comes out!

2006-07-03 10:25:12 · 21 answers · asked by AiLiL 1 in Other - Science

2006-07-03 10:23:59 · 12 answers · asked by Anonymous in Astronomy & Space

2006-07-03 10:21:08 · 16 answers · asked by Katrina C 1 in Zoology

2006-07-03 10:19:49 · 15 answers · asked by Gobstopper5 2 in Other - Science

To specify I mean if the mask were put on in an early stage before the animal had matured and was left until maturity, when the mask was removed would the face stay in the shape of the mask? The bones and such would conform to the shape if it remained on during growth - or would the face continue to grow and become contorted? If necessary assume the animal to be a homonid.

2006-07-03 10:15:18 · 8 answers · asked by Matt C 1 in Zoology

2006-07-03 10:02:16 · 18 answers · asked by Kyle B 1 in Mathematics

So the space shuttle has been delayed twice already and they have now ran into some recent issues...any bets that the shuttle will or will not be the first launch on July 4th.

2006-07-03 10:00:19 · 15 answers · asked by Anonymous in Astronomy & Space

2006-07-03 09:57:29 · 38 answers · asked by Anonymous in Other - Science

...traveling towards each other at close to the speed of light. One is going 2.9x10^8 m/s and the other is going 2.8x10^8 m/s.

Using this formula.. u = (v + w) / 1 + vw / c^2
w = velocity of one ship
v = velocity of the other ship
c = speed of light in a vacuum
u = speed observed by the two spaceships on the other

This is to show the break-down of "addition rule of velocites" at the speed of light.

2006-07-03 09:56:33 · 3 answers · asked by trancevanbuuren 3 in Mathematics

2006-07-03 09:55:58 · 10 answers · asked by ar423jan2005 1 in Astronomy & Space

2006-07-03 09:54:07 · 28 answers · asked by Jericho Faith 2 in Astronomy & Space

2006-07-03 09:52:19 · 23 answers · asked by wewedc11 1 in Other - Science