Other - Science - September 2007

Imagine that there is a very very sharp needle, the sharpest in the world. it is so fine and pointy that if you touch it, it will pierce the skin. If you look at it under a microscope, will the ultra sharp needle appear to be flat or still sharp?

2007-09-28 08:50:09 · 5 answers · asked by Anonymous

I wanna be an Architect, but I pretty much SUCK at Physics. Not bad in math though.

2007-09-28 08:44:52 · 5 answers · asked by UmbArella 2

Please if possible,explain.

2007-09-28 05:23:10 · 9 answers · asked by kemunkhimhun 1

I cut a small lemon in half, squeeze both halves into my glass of water, then i throw both halves into the water. 1 half floats while the other half sinks to the bottom. Why???

2007-09-28 02:36:09 · 4 answers · asked by Anonymous

How did Fig Newtons get their name?

2007-09-27 20:37:19 · 1 answers · asked by carpsycho007 1

On the wheeloaders (payloaders) we build at the plant I work at, one of the main lift arms has the words 'ductile iron, do not weld', embossed on it.
Oddly enough one of the engineers at the plant could not answer my question. What is 'ductile iron' and why can it not be welded?

2007-09-27 12:58:12 · 3 answers · asked by escort500xl 4

Nutrients that contain nitrogen,as well as carbon,hyrdrogen, and oxygen are called ________.

2007-09-27 11:48:36 · 1 answers · asked by mom 1

when you see something moving in the microscope like to the top and the the right, do you really see the opposite of that through the eyepiece? and second, why do we have to focus the low-power objective first?

2007-09-27 11:44:43 · 2 answers · asked by Justin P 1

2007-09-27 11:41:11 · 11 answers · asked by lisa s 2

HELP!! I really need the answer!

2007-09-27 11:40:41 · 2 answers · asked by Isabella 2

we depend on shops and stores for food clothing and shelter, but only a few of us really know how to grow plants, make clothes and build houses. if things don't change don't you think 100 yrs or so from now humans would be so dependent on technology they might forget how to grow crops or how to build shelter.? as the years pass by slowly people are forgetting about basic knowledge of living. they are becoming more and more concern in the areas of technology.. wanting to make everything easy and automatic. do you think it is possible for human beings in the future to forget the basic means of survival in nature?

2007-09-27 07:45:57 · 3 answers · asked by loaded 2

6. The ability of an organism to maintain constant conditions within its body is called __________.
A. homeostasis
B. reproduction
C. response
D. development

7. The process of passing genetic information on to an organism's offspring is _________.
A. metabolism
B. homeostasis
C. heredity
D. chromosome

8. The smallest units that retain the chemical properties of the element from which they come are _________.
A. atoms
B. electrons
C. molecules
D. protons

9. All matter in the universe is composed of _________.
A. cells
B. molecules
C. atoms
D. carbon

10. All living things __________.
A. are composed of at least one cell
B. respond to their environment
C. use and obtain energy
D. all of the above

11. Sharing of electrons in the outer energy levels of two atoms __________.
A. results in ion formation
B. occurs in covalent bonds
C. occurs in ionic bonds
D. None o

2007-09-27 06:22:23 · 3 answers · asked by Anonymous

What I'm trying to find out is the minimum amount of time it has taken for one species (it doesn't matter which) to evolve into another distinct species, possibly also how long on average it would take an individual member of that species to reproduce.

I am no expert on the subject of evolution and I may have incorrectly phrased the question. Please forgive me if this is the case and feel free to give whatever answer you can.

2007-09-27 05:15:48 · 3 answers · asked by Anonymous

I am looking for a kind material that has the following properties:
- isn't gas or fluid
- doesn't react with water
- doesn't have negative effects on humans
- has low weight and doesn't sink in water
- Has a similar or smaller density than water.
- Is solid, it isn't powder or something you can crush when you touch it


If your answers won't fit i'll add more details. Thanks in advance.

2007-09-27 03:59:58 · 7 answers · asked by Anonymous

I'm guessing that there needs to be something inside to stop the bucky ball from collapsing

2007-09-27 02:17:45 · 9 answers · asked by vEngful.Gibb0n 3

2007-09-27 01:54:51 · 2 answers · asked by Sniper of Goth 4

2007-09-26 20:05:00 · 21 answers · asked by Anonymous

2007-09-26 18:46:04 · 1 answers · asked by wlalng... 1

but not the rest of their music? (Although, I'd prefer to hear NONE of their music.)

2007-09-26 18:42:38 · 3 answers · asked by Anonymous

?

2007-09-26 15:17:20 · 5 answers · asked by angie 1

i need help on hmwrk and im clueless on this...

2007-09-26 15:00:17 · 5 answers · asked by angie 1

of an object
EX.) a softball
its for a science fair project and i dont know how to figure the mass of a softball, baseball, golf ball, bouncy ball, and so on...
and my thing is: "how does the mass of a ball affect the distance of the ball"
does that make sense?

2007-09-26 14:59:42 · 2 answers · asked by Anonymous

2007-09-26 14:22:06 · 5 answers · asked by kqueen_lola 1

Our plumber hooked up the hot water to my ice maker, saying that many people think it freezes faster because of how much energy it takes to get water temperature moving. Once it gets moving in the right direction, it can move faster and faster. Have ya heard this? Okay, so does cold water boil faster? Just wondering.....

2007-09-26 14:01:54 · 8 answers · asked by Suzi♥Squirrel 4

what is the permeability of the potato cytoplasm with reagrds to sucrose and water? Is it permeable to water, but not sucrose??

2007-09-26 13:05:51 · 1 answers · asked by Anonymous

If a potato slice is placed in tubes with water and varying amounts of salt, will the higher concentrations of salt increase or decrease the mass of the potato slices and why?

2007-09-26 13:03:51 · 1 answers · asked by Anonymous

the question i gotta solve is 'write two abiotic factors you think do not affect the growth of producers.'
and someone said one of them is Carbon dioxide
why?

2007-09-26 12:49:02 · 2 answers · asked by mel<3 1

2007-09-26 12:01:32 · 2 answers · asked by _shes royalty. 1

Here's my question. On a very hot day you go to an ice cream store. You walk down the aisle and lift the lid to a waist high horizontal freezer and pick up an ice cream bar. You notice that the other freezers are upright and have doors. Which freezer design is better for keeping the cold air in and why?

2007-09-26 11:17:16 · 1 answers · asked by Anonymous

2007-09-26 08:51:52 · 12 answers · asked by Anonymous