Science & Mathematics - 3 October 2006

whenever i try to do it it says error: domain

2006-10-03 14:53:47 · 17 answers · asked by iluvhipos 3 in Mathematics

2006-10-03 14:53:16 · 4 answers · asked by Mike B 1 in Mathematics

Chemical or Mechanical

2006-10-03 14:50:17 · 4 answers · asked by Lyndz 1 in Earth Sciences & Geology

Have lots of people been out to sites for fossils where ever they live? Where? How about in New Jersey?

2006-10-03 14:50:02 · 5 answers · asked by Bob g 2 in Earth Sciences & Geology

2006-10-03 14:49:33 · 4 answers · asked by ashley 1 in Biology

i wold play football inside

2006-10-03 14:48:35 · 13 answers · asked by Anonymous in Physics

Consider the matrix B =
1; -2; 1
3; 4; 1
6; -2; 4
(a) Find out if the columns of B are independent.
(b) Are the rows of B dependent?
(c) Suppose that Bu = Bv. Does it follow that u = v? Why or why not?

2006-10-03 14:45:35 · 3 answers · asked by Amir E 1 in Mathematics

droped something out my window 2 stories up neighbor downstairs isnt home ,????/ maybe a rope ladder?

2006-10-03 14:44:28 · 4 answers · asked by noelshira 1 in Engineering

1.why is mathmatics important for science?
2.what is the difference between a hypothesis and a theory?
3.is a science fact somethng that is absolute and unchanging?
4.why is physics the most basic of science?

2006-10-03 14:43:32 · 1 answers · asked by ☆★♪♫Caitlin♫♪★☆ 2 in Other - Science

2006-10-03 14:43:09 · 2 answers · asked by Alicia3280 1 in Chemistry

If a minimum of 423.6 kJ/mol is required to remove electrons from C atoms on a surface of a sample of carbon, what is the maximum wavelength (max) of light that can remove an electron from a C atom on this surface?

If the same carbon surface is irradiated with light of =175.7 nm, what is the maximum kinetic energy that a released electron could have?

2006-10-03 14:42:25 · 1 answers · asked by Anonymous in Chemistry

Which one formed first; meaning were the highlands on the moon first and once the moon was impacted with different meteors the seas fromed from the molten filling in the craters?

2006-10-03 14:41:49 · 6 answers · asked by Roxy 2 in Astronomy & Space

2006-10-03 14:41:23 · 4 answers · asked by jaff_erin 1 in Physics

2006-10-03 14:39:37 · 28 answers · asked by hdrinko1@sbcglobal.net 1 in Mathematics

2006-10-03 14:39:06 · 6 answers · asked by jack_sparrow1986 1 in Physics

mathematically, what is the relationship?

2006-10-03 14:33:23 · 9 answers · asked by jack_sparrow1986 1 in Physics

A serving tray made of brass weighs 21 ounces. This brass is an alloy of 70% copper and 30% tin. What is the weight of the copper tray?

2006-10-03 14:32:45 · 8 answers · asked by Nerds Rule! 6 in Mathematics

2006-10-03 14:29:53 · 2 answers · asked by tictic242 2 in Biology

...three equilateral triangles inside an octagon?

2006-10-03 14:28:24 · 5 answers · asked by Heckel 3 in Mathematics

what is the effect of friction on a moving object?

2006-10-03 14:27:20 · 5 answers · asked by foxy lady 2 in Physics

I readed a Deutsche news about bionics applications in non-pump irrigation online in July, 2006.

In this news, it is mentioned that the current
technical non-pump water lifting height is 10 metres, and the example in natural reality is about 100 metres. I want to know if the major principle of non-pump water lifting is about the surface tension of water and capillary elevation? I am wondering what are the major obstacles for artificial technique to reach the natural one.

From the formula of capillary elevation, it seems that the water lifting height could reach about 1000 metres (order of magnitude) if the redius of the capillary was about 10 nanometres (order of magnitude). Am I right or wrong in using the formula to make such a theoretical estimation? Are there any limited conditions for using the formula, which may not allowe me to apply it in such a huge scale? May be that there is difficulty in practice to achieve the theoretical one?

Thanks for helps!

Tom

2006-10-03 14:26:02 · 5 answers · asked by tom 1 in Engineering

why or why not? what are the implications of this?

2006-10-03 14:25:44 · 8 answers · asked by mango 2 in Biology

I need to know this for chem lab. Thank You all

2006-10-03 14:25:37 · 3 answers · asked by HeTrP 1 in Chemistry

Say whether each of the following statements is true or false, and give a brief reason in each case.
(a) Every system of 3 linear equations in 5 unknowns has many solutions.
(b) If a system Cx = b has a solution x, then the columns of C are dependent.
(c) If two matrices D and E reduce to the same echelon form then D = E.

2006-10-03 14:25:20 · 3 answers · asked by Amir E 1 in Mathematics

2006-10-03 14:24:42 · 2 answers · asked by Plain truth 3 in Medicine

For a school science project..anything would help!

2006-10-03 14:24:39 · 3 answers · asked by Carlie 1 in Zoology

How do you distrill and purity tap water? Would keeping tap water in a reused plastic bottle for a few weeks do this?

2006-10-03 14:23:14 · 5 answers · asked by gwibsy 1 in Other - Science

Most welcoming:
1. TEXAS!!!
2. Louisiana
3. Oklahoma
4. Arkansas
5. Alabama
6. South Carolina
7. Georgia
8. Tennessee
9. Utah
10. North Carolina
11. South Dakota
12. North Dakota
13. Wisconsin

I didn't find New Jersey, Vermont, New Hampshire, Kansas, Oregon, and California to be welcoming and amiable. Michigan is not on my "tops" list, but was much better than I thought. Florida, Ohio, and New York are welcoming, but only as long as they're taking you're money. Kentucky is welcoming only if they know you or you are kin to somebody; otherwise, they are very impolite, unhelpful, and snobby.

2006-10-03 14:21:58 · 17 answers · asked by lone_star_john 1 in Geography

I really need to know! I am teaching an Honors Chemsitry class tomorrow :)

2006-10-03 14:20:59 · 7 answers · asked by Chelsea Nicole 1 in Chemistry

By September a major league baseball team had won 77 games and had lost 63 games. What was its percentage of games won?

Thank-you to the people who answer!

2006-10-03 14:15:40 · 11 answers · asked by Nerds Rule! 6 in Mathematics