Science & Mathematics - 14 December 2006

Without having access to space, what evidence can be provided that the earth is round.

2006-12-14 05:09:14 · 23 answers · asked by NY JAGR 1 in Astronomy & Space

Which of the following expressions represent the product of 3 less than twice x and 2 more than the quantity 3 times x?

2006-12-14 05:08:23 · 5 answers · asked by myheavenlylove4u 2 in Mathematics

could you please break it down for me and I didnt know how to put the 3 over the x

2006-12-14 05:07:35 · 17 answers · asked by Anonymous in Mathematics

2006-12-14 05:07:11 · 7 answers · asked by *~*~* Sweet Angel *~*~* 1 in Physics

2006-12-14 05:07:11 · 11 answers · asked by Martin J 1 in Zoology

using the apropriate tnthalpy tables, calculate the deltaHf(heat of formation) for benzene

2006-12-14 05:04:15 · 3 answers · asked by Christie K 1 in Chemistry

2006-12-14 05:03:01 · 5 answers · asked by dennis 1 in Mathematics

2006-12-14 05:00:18 · 2 answers · asked by Christie K 1 in Chemistry

Please do not say it is 53.66ml acid as previously reported (Wikipedia).


Buffer question: You are given two solutions - 1.00 M aqueous sodium hydroxide, and 1.00 M acetic acid in water. What volumes of each solution must be mixed to produce 500 mL of a buffer pH 5.30? What molarity is this buffer?

(Acetic acid, dissociation constant 2.2 x 10^-5)

2006-12-14 04:56:33 · 2 answers · asked by Peter B 3 in Chemistry

My pyrex tube is grounded and the source meter to sweep the voltage is connected with + to probe - to the tube flange. Common ground is the table. I still get double probe characteristic. Am I missing something?

2006-12-14 04:50:29 · 2 answers · asked by Nikki 1 in Physics

2006-12-14 04:50:19 · 7 answers · asked by tiffany_da_finest 1 in Geography

2006-12-14 04:48:36 · 10 answers · asked by Anonymous in Physics

2006-12-14 04:47:16 · 4 answers · asked by boni g 1 in Earth Sciences & Geology

What compounds are made from H2SO4+Zn? ZnSO4 or (ZnHSO4)2?

2006-12-14 04:44:13 · 4 answers · asked by Anonymous in Chemistry

2006-12-14 04:44:05 · 2 answers · asked by lupering 3 in Chemistry

2006-12-14 04:39:01 · 5 answers · asked by Anonymous in Geography

I'm not saying this is true, I'm asking "dont people say that humans evolved from monkey's?" and if this IS true, then how come the monkey's (or apes or gorillas or whatever...) are still in existance? shouldnt they have been dead like billions of years ago or something?
I am a Christian, and I beleive in God and I'm working on helping my faith grow.
but if this is true (humans coming from monkeys) then how come they are still around? does that make semse to you at all?

2006-12-14 04:35:50 · 22 answers · asked by Anonymous in Biology

"this area is somewhere in Atlantic Ocean"

2006-12-14 04:31:37 · 4 answers · asked by Anonymous in Geography

2006-12-14 04:30:47 · 5 answers · asked by Anonymous in Engineering

This is supposed to be one of the most spectacular meteor showers, but there was so much fog where I live I wasn't able to watch it. Maybe tonight I can see the tail end of it. Hopefully its clear here.

2006-12-14 04:29:58 · 5 answers · asked by tdakpj 3 in Astronomy & Space

If 4/5 + (3/10) = X + 1/2, then X = 1/2
the answer is supposingly -1( i do not understand how why)

over means divided by
For all x>0 and y>0, the radical expression squareroot of x over squareroot of 3 - squareroot of y. The answer is equivalent to 3x + squareroot of xy over 9x-y
I do not know how they arrived at the answer.
x square + 12* + 32 divided by x+4 for all x < -3
the answer is -x -3. how did they get that.

What is the slope of the line with the equation 2x+3y+6= 0?
please show your workings.

Point A (-4, 1) is the standard (x,y) coordinate plane. what must be the coordinates of point B so that the x=2 is the perpendicular bisector of AB?
please kindly show all your workings. Thanks a lot.

2006-12-14 04:28:32 · 8 answers · asked by PRINCESS Tiffany 2 in Mathematics

2006-12-14 04:26:04 · 11 answers · asked by CYRIL J 1 in Zoology

Two ways they are alike and two ways they are different.

2006-12-14 04:24:32 · 4 answers · asked by ram1bali 1 in Biology

I posted them on this forum. I have them done already.

Please tell me if they are right.


http://answerboard.cramster.com/chemistry-topic-5-37495-0.aspx

2006-12-14 04:24:21 · 2 answers · asked by Andy 1 in Chemistry

2006-12-14 04:22:54 · 3 answers · asked by kingwood4fake 1 in Chemistry

2006-12-14 04:20:37 · 3 answers · asked by Plasma 1 in Chemistry

2006-12-14 04:20:28 · 11 answers · asked by Anonymous in Zoology

Downs Syndrome is a genetic disorder characterized by what?

all body cells having an extra chromosome

all body cells missing a chromosome

all sex cells having an extra chromosome

all sex cells missing a chromosome

2006-12-14 04:19:53 · 8 answers · asked by ram1bali 1 in Biology

2006-12-14 04:16:41 · 3 answers · asked by diego v 1 in Zoology

2006-12-14 04:16:20 · 4 answers · asked by ? 3 in Engineering