Science & Mathematics - 13 October 2007

2007-10-13 14:54:41 · 5 answers · asked by Anonymous in Biology

If a healthy female was impregnated by cancerous male would evoloution or natural selection correct the problem and are we interfering with evoloution by not totally relying on it to correct our health woes?

2007-10-13 14:53:50 · 3 answers · asked by james h 2 in Medicine

my frend was telling me that the astronots never realy went there but it was all done in holleywood with specal affects??? is that true???

2007-10-13 14:52:29 · 35 answers · asked by Gold Digger 5 in Astronomy & Space

2007-10-13 14:48:42 · 5 answers · asked by Smithers 2 in Biology

2007-10-13 14:47:33 · 40 answers · asked by dazza 2 in Astronomy & Space

2007-10-13 14:46:51 · 8 answers · asked by Anonymous in Astronomy & Space

Hey, please help me do this, I have to submit for marks and I have no clue what to do.

A section road, represented by the line y = x + 2 with x =< 0 is to be connected to another section of road, represented by y = 2 - x with x >= 2, by means of a curved section of road, represented by a cubic curve y = ax^3 + bx^2 + cx + d, so that the resulting connected road has no sharp corners. Find the required values of a, b, c and d. In other words find a, b, c and d such that the function f(x) is differentiable, where:

f(x) = x + 2 where x =< 0
ax^3 + bx^2 + cx + d where 0 =< x =< 2
2 - x where x >= 2

Any help is greatly appreciated.
Thanks in advance.

2007-10-13 14:41:02 · 1 answers · asked by Anonymous in Mathematics

i will pick best answer to whoever answers correctly!!
thx!

2007-10-13 14:39:55 · 3 answers · asked by onetreehunny 4 in Biology

Back in the 70's, Astronomy or Sky & Telescope magazine advirtised a "wind up" camera clock drive that I believe was German built and used to track stars, planets, etc. It was supposibly pretty acturate and wasn't that expensive (I bought one but, have long forgot what happened to it). Does anyone remember the name of it or if they still make them? Is there anywhere on the internet that has a picture of this?

2007-10-13 14:34:42 · 2 answers · asked by sei62461 1 in Astronomy & Space

Like something similiar to warp drive, ion propulsion, or some other exotic form of motion producing device to push our space ships through space.

2007-10-13 14:32:17 · 7 answers · asked by Anonymous in Astronomy & Space

I have scorpions in my house and I need help on getting rid of them. First of all what do they eat and what eats them. Also what kind of habitat, temperatures, or conditions attracts them. Also what kind of method should I use to get them out?

2007-10-13 14:31:32 · 1 answers · asked by Anonymous in Zoology

2007-10-13 14:28:33 · 14 answers · asked by Anonymous in Astronomy & Space

what is 1+1=

I don't have my calculator with me.

2007-10-13 14:15:42 · 13 answers · asked by I'M GONNA GO PLACES 5 in Astronomy & Space

When I write on a hard surface it doesn't look good, while writing on a stack of paper, like in a notebook it looks darker and neater...

2007-10-13 14:15:26 · 1 answers · asked by Anonymous in Other - Science

it needs to be able to hold about 50-100 pounds. Any suggestions would be great. i need a store, nothing online. Thank you all very much

2007-10-13 14:07:41 · 2 answers · asked by Lewis L 2 in Engineering

... If we use x[0] = 1 as our starting value, find the next two iterates.

x[1]=?
x[2]=?

Note the numbers after the x's are subscripts.

2007-10-13 13:59:22 · 1 answers · asked by jtaylor 1 in Mathematics

Water is often used as a standard in making comparisons between substances. why do you think this is the case?

2007-10-13 13:57:40 · 1 answers · asked by Josiah 1 in Chemistry

A bacteria cell divides into two cells every 20 minutes. The initial population of a culture is 60 cells.
a. find the relative growthing rate
d. find an expression for the # of cells after t hrs
c. find the rate of growth after 8hrs
d. when will the population reach 20,000 cells?

2007-10-13 13:56:55 · 1 answers · asked by Anonymous in Mathematics

The antacid in question (with an active ingredient of Ca(HCO3)2), upon treatment with excess hydrochloric acid, a 0.433 g sample gives 88.15 mL of CO2 at 25.00oC and 1.000 atm. What percentage of the antacid is active ingredient? Assume a perfect system (i.e. the yield is 100%)

2007-10-13 13:55:53 · 1 answers · asked by May 3 in Chemistry

gram-gram

Li + Cl2 --> LiCl

a) Given 10 grams of Chlorine determine grams of Lithium chloride.

first thing to do is balance the equation, right?

Li + Cl --> LiCl

to

2Li + Cl2 --> 2LiCl

2007-10-13 13:53:51 · 6 answers · asked by ashley 1 in Chemistry

2007-10-13 13:49:47 · 4 answers · asked by Anonymous in Chemistry

the method used to find the density of a regular solid will not work for all solids? why not? plz help, ill chose you as the best answer!

2007-10-13 13:45:41 · 4 answers · asked by Josiah 1 in Chemistry

2007-10-13 13:40:15 · 3 answers · asked by sara 1 in Chemistry

Should i donate my brain to a science research foundation?? Then I will have no life but i am willing to help a good cause, am i crazy, if so please help me!!

2007-10-13 13:39:40 · 12 answers · asked by bffs789562 4 in Medicine

ok we have to do this project for mole day and i have no idea how to do it.

I need to know how many skittles make up 1 mol?


any ideas on how i figure that out? pleaseee...be as detailed as possible =).

10 points to the person that helps me the most!

2007-10-13 13:39:40 · 7 answers · asked by me 1 in Chemistry

2007-10-13 13:39:25 · 1 answers · asked by Anonymous in Earth Sciences & Geology

i am doing school online and i haven't yet received my textbook yet

2007-10-13 13:38:52 · 1 answers · asked by sara 1 in Chemistry

(I hate to repost this, as I'm sure there is some rule against it, and for that I do apologize. I'm only doing it because I don't have a great deal of time left to complete the assignment, and I didn't receive a great deal of answers last time (but the answers were excellent may I add, so thank you!!!))

I'm writing this report on the physics behind computers throughout history, and I'm not quite sure what to put next... So far I've written about:

~ Thermionic Emission - Used in the old-fashioned vacuum tubes by using heat to emit electrons.
~ Transistors - Basically put what they are and how they work.
~ Magnetic Core Memory - Explaining how information is stored in the hard drive of the computer.

Any more ideas would be excellent!

2007-10-13 13:38:32 · 6 answers · asked by Sean 3 in Physics

when aqueous solutions of HCL and K3PO4 are stirred together, allowing the four ions aboce to repartner, what two neutral compounds could result?

2007-10-13 13:37:26 · 1 answers · asked by Jelisa K 1 in Chemistry

2007-10-13 13:35:47 · 1 answers · asked by Jelisa K 1 in Chemistry