Science & Mathematics - 1 November 2007

2007-11-01 05:56:20 · 2 answers · asked by mark 1 in Earth Sciences & Geology

2007-11-01 05:55:21 · 13 answers · asked by Alan Wisniewski 1 in Astronomy & Space

2007-11-01 05:52:52 · 6 answers · asked by Ree 2 in Medicine

2007-11-01 05:51:21 · 4 answers · asked by Anonymous in Weather

I want to become a RN but I'm sooo afraid of giving shots and drawing blood. Do RNs need to do these things? Are they optional?

2007-11-01 05:51:14 · 3 answers · asked by justin j 1 in Other - Science

If it is 10:30 a.m. in Arkansas, what time is it in Alaska???

2007-11-01 05:51:07 · 14 answers · asked by Anonymous in Geography

2007-11-01 05:50:10 · 4 answers · asked by raymond d 1 in Earth Sciences & Geology

In the plastic bird that balances on the tip of its beak, The little birds that stand on their beak, that you can buy at any store, it will balance on its stand or you can balance it on any surface with only the tip of its beak touching.

2007-11-01 05:47:45 · 2 answers · asked by Pascal 4 in Physics

the following stars are the brightest in the sky to the naked eye
in order of magnitude. name? each star and their names? the constellations? their magnitude? Please name all the stars names in order please? hint over 20 star names? name the constellation and their meaning? and their Magnitude?
Reason for this is to see just how many astonomers, and astrologers, clearly know their field of work? Thank you, and please no jokes, this is serious guys!! as it depends on how some people can be fooled, which is a naughty thing! And to see how many of you in both groups of subjects, truly know what they say. Do not go to Wiki, either, as I will know! Thank you so much only the serious please!

2007-11-01 05:46:12 · 8 answers · asked by aprilmacfadden 3 in Astronomy & Space

It is said that speed of a induction motor is
N = 120* f / P

then how do you vary speed of a ceiling fan using a regulator

2007-11-01 05:45:58 · 3 answers · asked by Mukesh Dak 3 in Engineering

1. If 1.710 g of a gas occupies a 500-mL flask at 30 degrees C and 750 mm Hg of pressure, what is the molecular weight of the gas? (Show work, and remember to use proper units: V in liters, T in degrees Kelvin, P in atmospheres.)

2. Can a real gas ever behave as an ideal gas? Explain.


Thank you very much in advance!

2007-11-01 05:42:48 · 2 answers · asked by Kate 1 in Chemistry

2007-11-01 05:41:11 · 1 answers · asked by IDchecker27 2 in Chemistry

I have bad allergies, and my ears are constantly clogged. I'd been to an ENT (ear, nose and throat) dr. before, and he said that I have a deviated septum though I'm allergic (how's that for irony ;) to general anesthesia so I can't get the rhinoplasty. I was wondering if it was safe to take one sudafed daily over a long period of time. Thank you!

2007-11-01 05:39:47 · 12 answers · asked by jannsody 7 in Medicine

2007-11-01 05:38:15 · 5 answers · asked by phantasm 2 in Engineering

peacock and peahen do only romance but no sex,and when peahen want to get pragenent it drink the tears of peacock and gets pragenent.thats why peacock considered a very holy animal in all religion

2007-11-01 05:37:41 · 8 answers · asked by al_hussain 1 in Zoology

2007-11-01 05:35:37 · 1 answers · asked by Gurlie Gurl 2 in Chemistry

Place the generator on anything that vibrates and it will produce
a current.

2007-11-01 05:35:29 · 3 answers · asked by Ken 1 in Engineering

2007-11-01 05:35:14 · 6 answers · asked by . 1 in Mathematics

I mean there is something there, so it must have mass.

2007-11-01 05:31:47 · 16 answers · asked by Anonymous in Astronomy & Space

1.what happens to the outermost electron in a sodium atom when the atom is heated and made to give off a line spectrum?
2.how did observations of spectra lead to conclusions that the energy given off by excited atoms is quantized?
3.Explain how atoms can be electrically neutral even though they contain charged particles? Is dthe answer to this question because they balance or level each other out.

2007-11-01 05:31:36 · 4 answers · asked by babygrlnpnk999 1 in Chemistry

you know like those people interested in oceans are called oceanographers.

2007-11-01 05:30:01 · 9 answers · asked by ♥4'10♥so_what 2 in Earth Sciences & Geology

I know the answer, i just want to see how its worked out

2007-11-01 05:29:02 · 3 answers · asked by r wall 3 in Other - Science

2007-11-01 05:29:02 · 14 answers · asked by Anonymous in Astronomy & Space

2007-11-01 05:28:02 · 2 answers · asked by emmanuel B 1 in Geography

ok well metrix a= (in brackets i don't know how to put them up)
a b
c d

metrix b=
e f
g h


now the question-
A does not have an inverse B has an inverse
Column A
ad-bc


Column B
eh-fg


1. the quantity in column a is greater
2. the quantity in column b is greater
3. the two quantities are equal
4. the realationship cannot be determined on the basis of the information supplied.




I am so lost on this question i had no clue how to solve it should i assign numbers to the letter and then work it out. can someone please help me?

2007-11-01 05:26:18 · 5 answers · asked by Amber 1 in Mathematics

The standard enthalpy of combustion of ethene gas, C2H4(g), is -1411.1 kJ/mol at 298 K. Given the following enthalpies of formation, calculate Hf° for C2H4(g).

2007-11-01 05:23:19 · 1 answers · asked by Anonymous in Chemistry

help me

2007-11-01 05:23:00 · 7 answers · asked by . 1 in Mathematics

2007-11-01 05:20:41 · 1 answers · asked by chile270 1 in Chemistry

Calculate w and E when one mole of a liquid is vaporized at its boiling point (71°C) and 1.00 atm pressure. Hvap for the liquid is 37.1 kJ mol-1 at 71°C.

2007-11-01 05:20:07 · 2 answers · asked by toocool 1 in Chemistry

A 134 g stainless steel ball bearing (sp ht = 0.50 J g-1 °C-1) at 525°C is dropped onto a large block of ice at 0°C, what mass of liquid water will form? (H°fusion = 6.01 kJ/mol H2O(s))

2007-11-01 05:18:39 · 2 answers · asked by toocool 1 in Chemistry