Science & Mathematics - 5 November 2007

por ejemple the late John Ritter?

2007-11-05 08:20:41 · 7 answers · asked by Anonymous in Paranormal Phenomena

find the volume of the solid generated by rotating the circle (x-10)^2 + y^2 = 36 about the y-axis.

basically all i can do is solve for y. i just don't know what to do afterwards.

y = (-x^2 + 20x - 64)^(1/2)

2007-11-05 08:16:12 · 2 answers · asked by Anonymous in Mathematics

please help me

2007-11-05 08:15:38 · 10 answers · asked by Patrick T 1 in Mathematics

A mixture of 1.02 g of H2 and 2.21 g of He exerts a pressure of 0.480 atm. What is the partial pressure of each gas present in the mixture?
H2
atm
He
atm

2007-11-05 08:13:16 · 4 answers · asked by Heather L 1 in Chemistry

2007-11-05 08:12:42 · 19 answers · asked by Anonymous in Astronomy & Space

This is short hand version of some term in my medical vocabulary book.

What is the full name and what is it for?

2007-11-05 08:12:41 · 2 answers · asked by Doesntstayinvegas.com 3 in Medicine

How would I go about doing this, and am I supposed to divide...
Here's the problem written out:
3x^2 - 6x - 45
__________
x^2 - 25

2007-11-05 08:12:05 · 3 answers · asked by Anonymous in Mathematics

is it 5 X 10 ^ -6, -5, -4, -3, 3

2007-11-05 08:11:03 · 1 answers · asked by Cassie G 1 in Earth Sciences & Geology

How many mililiters is of NaOH was required to neutralize the acid?

2007-11-05 08:10:55 · 2 answers · asked by symia87 1 in Chemistry

i have a question on my chem homework that i cant figure out. i really dont understand significant figures. the 0s confuse me because inever know when they are supposed to count. anyone who knows about sigfigs please help! lol
heres the question:

4. How many significant figures are found in each of the following:
a._____6.0080

b._____5.000 x1034

c._____0.00678

d._____56.90

e._____6,000,000

thanks! (:

2007-11-05 08:08:49 · 8 answers · asked by Manda 2 in Mathematics

2007-11-05 08:05:44 · 6 answers · asked by sue 1 in Astronomy & Space

Identify the specific element that corresponds to each of the following electron configurations.
(a) [He]2s22p1

(b) [Ne]3s23p5

(c) [Kr] 5s1

(d) [Xe]6s1

2007-11-05 08:04:26 · 2 answers · asked by markusa_j 1 in Chemistry

His parents gave him some candies as birhtday present. His grandparants gave him twice as many candies. And other children who attended the party ate three times as many of his candies.

How many candies has the boy ather his birthday party?

2007-11-05 08:04:08 · 4 answers · asked by Alexander 6 in Mathematics

If you actually went for a reading and charging for a ridiculous sky-rocket prices? Do they actually come true?

2007-11-05 08:01:07 · 23 answers · asked by mitchchan 5 in Paranormal Phenomena

2007-11-05 07:58:19 · 6 answers · asked by Anonymous in Mathematics

I mean... How do chickens and other birds mate? It's bizarre.

2007-11-05 07:56:10 · 7 answers · asked by Anonymous in Zoology

2007-11-05 07:54:39 · 4 answers · asked by jnsane84 1 in Engineering

Chemistry AS homework, why is a nitrogen atom (0.075 atomic radius/nm) larger than an oxygen atom (0.073 atomic radius/nm)?
If you don't know what nm means don't even try! :)
Thanks

2007-11-05 07:54:31 · 5 answers · asked by AAAPokerJoker 2 in Chemistry

x - 2y - z = 3
x + y +2z = 9
2x + 3y + z = 0

show work please. :) THANKS!!!

2007-11-05 07:51:58 · 1 answers · asked by soccer81 2 in Mathematics

I know how to construct a triangle with 3 given lenghts using compass, but a kite, which supposedly has 4 sides and we are gicen lenghts to 3?
Im trying to remember exactly what lenghts were given in the practise paper today but they were something like this:
Two side were 6cm and 4.8 and the length of the shorter diagonal was 4.2cm. If these lenghts seem impossible to do, then could someone explain to me how i'd go about this question?

2007-11-05 07:51:08 · 3 answers · asked by Starmate 1 in Mathematics

2007-11-05 07:48:49 · 8 answers · asked by maddog 1 in Astronomy & Space

35.04 mL of .237M I2 solution is required to titrate a sample containing As2O3. Calculate the mass of As2O3 (197.8 g/mol) in the sample.

As2O3 + 5(H2O) + 2I2 --> 2(H3AsO4) + 4HI

2007-11-05 07:45:10 · 4 answers · asked by Peter 2 in Chemistry

If mother is four years younger than the father, by how many years sister is younger than her brother?

2007-11-05 07:44:54 · 26 answers · asked by Alexander 6 in Mathematics

2007-11-05 07:44:44 · 3 answers · asked by Ms.Shea 1 in Mathematics

if everything is exploding out from the big bang at less than the speed of light will it not all eventually collapse back into its self because of gravity if this is the case how can it be infinity? and if it is infinity must it not have broken the speed of light? both ways its not ment to be possible

2007-11-05 07:44:42 · 7 answers · asked by Paul B 1 in Astronomy & Space

What would it be and is it better and cheaper and what can be done to get it started?

2007-11-05 07:40:41 · 4 answers · asked by R J 7 in Engineering

i dont understand how to do this!? can someone please help me out.. its due in 2 daysss!!

10% of the population is left-handed. find the following probilities..
a) out of 4 people selected, at least 2 are left-handed
b) out of 6 people exactly 3 are left handed
c) if the % is actualy 11.3%, what is the probability hat if you pick 5 people, al will be left handed?

2007-11-05 07:39:53 · 2 answers · asked by Anonymous in Mathematics

31 P
15
How many protons in this atom?
How many neutrons in this atom?
How many electrons in this atom?
Please explain.

2007-11-05 07:38:28 · 2 answers · asked by Jen P 1 in Chemistry

First of all, let me say that I do believe in evolution. Lately, a thought occurred to me that I would really appreciate some insight into.

Humans are obviously not perfect. Since creatures evolve to become better suited to their environment, are we still evolving?
My husband read an article that said human thumbs are slowly moving down towards our wrist since we no longer need them to climb. Anyone know of any other examples of how our bodies are still evolving?

2007-11-05 07:37:54 · 15 answers · asked by Anonymous in Biology

You define artificial instermination.
Give procedures of instermination in a cow.

2007-11-05 07:35:46 · 6 answers · asked by Asubasi Y 1 in Botany