Science & Mathematics - 27 November 2006

single crystal & bulk crystal and differant between them ?
disadvantages of preparation of thin film ?
impuirty
vacuum system

2006-11-27 07:20:22 · 1 answers · asked by d_love_e_2 1 in Physics

2006-11-27 07:17:48 · 18 answers · asked by WWF Decade Impaired Fan 2 in Zoology

The number –5 is in the range of the function f(x) = 4x – 9. Find an element in the domain that corresponds to –5 and show as an ordered pair.

2006-11-27 07:15:25 · 3 answers · asked by Dianna 4 in Mathematics

This is for my daughter's science project. Please provide any sites that may help in our research. What we are trying to find out is: 1. What can be found in the composition of milk, that decreases spiciness? 2. Why does water increase the effects of spiciness (example: Trying to cool your mouth with water after eating a hot pepper)?

2006-11-27 07:13:19 · 2 answers · asked by marvj2005 1 in Other - Science

sin(squard)x divided by cos(squard)=sec(squard)x-1. This is Trig Identities and i do not understand them at all. Can you please help me?

2006-11-27 07:13:09 · 3 answers · asked by hannabanana486 1 in Engineering

Dumb question but when and why did inches and feet become units of measurement replacing meters and all those things??

2006-11-27 07:12:51 · 1 answers · asked by Anonymous in Mathematics

What are the characteristics shared by all bacteria? And, can you briefly discuss the range of variations that exist among bacteria?


As I stated in another question, I am having a hard time in this biology class since it is a web class with no text! Thank the Lord it is almost over! Any help is greatly appreciated!

2006-11-27 07:09:18 · 6 answers · asked by Faith 2 in Biology

2006-11-27 07:09:07 · 16 answers · asked by Anonymous in Chemistry

2006-11-27 07:08:34 · 7 answers · asked by styles4u 4 in Mathematics

2006-11-27 07:06:58 · 5 answers · asked by BaD mAn R 1 in Earth Sciences & Geology

2006-11-27 07:05:38 · 4 answers · asked by darkforester22 1 in Mathematics

2006-11-27 07:04:22 · 8 answers · asked by Anonymous in Mathematics

I have a 4 carbon chain and there is a Br on the 3rd + 4th carbon and I need to know steps will produce a 6 carbon chain with a double bond from the 4th to the 5th carbon.

2006-11-27 07:04:12 · 1 answers · asked by nrk 2 in Chemistry

2006-11-27 07:02:30 · 1 answers · asked by FAMOU$_GiirL 1 in Chemistry

2006-11-27 07:01:33 · 4 answers · asked by lilmama 4 in Chemistry

2006-11-27 06:59:37 · 4 answers · asked by Anonymous in Mathematics

10x/(10+x)

2006-11-27 06:57:26 · 7 answers · asked by SonOsaM 1 in Mathematics

2006-11-27 06:56:47 · 3 answers · asked by Emerson R 1 in Mathematics

Ethylene glycol has a specific heat of 0.578 cal/(g * C) If 23.2 g of ethylene glycol absorbs 75.6 cal of energy, what will the temp increase be?

2006-11-27 06:56:31 · 3 answers · asked by carmond70 1 in Chemistry

A yo-yo shaped device mounted on a horizontal frictionless axis is used to lift a 30 kg box as shown. The outer radius R of the device is 0.50 m, and the radius r of the hub is 0.20 m. When a constant horizontal force Fappof magnitude 140 N is applied to a rope wrapped around the outside of the device, the box, which is suspended from a rope wrapped around the hub, has an upward acceleration of magnitude 0.80 m/s2. What is the rotational inertia of the device about its axis of rotation?

2006-11-27 06:56:03 · 1 answers · asked by Galaxy D 2 in Physics

Write a rational expression that has a simplified form 2x + 1 / x with restrictions where x cannot be 0, 2, -3/4

2006-11-27 06:55:50 · 3 answers · asked by thomasgraham880 1 in Mathematics

2006-11-27 06:55:30 · 2 answers · asked by alielioli 1 in Chemistry

the power of -1 goes to tan

2006-11-27 06:55:08 · 4 answers · asked by Anonymous in Mathematics

2006-11-27 06:53:23 · 3 answers · asked by wolverine1052000 1 in Zoology

2006-11-27 06:52:17 · 13 answers · asked by ash d 1 in Mathematics

...not using any containers or ropes, only your hand, arms, shoulders, etc.

How many?

2006-11-27 06:51:38 · 5 answers · asked by Anonymous in Zoology

I once heard of a scheme to dispose of nuclear waste by putting it on a rocket and firing it away from the planet, but the idea was abandoned because of cost and danger of a mechanical failure in the rocket...

Why not blend radioactive waste with iron and fire it out of a massive magnetic accelerator gun and into an orbit where it isn't likely to come back any time soon? The gun would be reusable, much less can go wrong mechanically, there aren't even any combustibles involved... Does this sound plausible?

2006-11-27 06:51:33 · 8 answers · asked by thebraindamaged1 2 in Astronomy & Space

how many significant digits are represented by a measured value recorded as 23500

2006-11-27 06:51:32 · 6 answers · asked by star wars freak 2 in Mathematics

On 60 minutes there was a discussion about whether this pill should be used or not. If one had a rape that caused them great stress and pain, would this pill be applicable or should they simply learn to cope with their traumas naturally?

2006-11-27 06:50:00 · 6 answers · asked by Waverly Pascale 3 in Medicine

2006-11-27 06:46:39 · 3 answers · asked by Anonymous in Mathematics