Science & Mathematics - 25 November 2006

2 farmers were taking cows to a market. one said to the other, if u give me one of your cows, we shall have the same amount. The other farmer replied, if u give me one of yours, i shall have twice as many as you.
How many cows did each have?

2006-11-25 08:33:34 · 9 answers · asked by mata 1 in Mathematics

a) 2.0 mol
b) 4.0 mol
c) 6.0 mol
d) 12 mol

please explain. thanks. (q45)

2006-11-25 08:31:19 · 7 answers · asked by *AH AH* 1 in Chemistry

I always see various tv shows or news channels talking about global warming as if it was proven. It's still a theory. I'm not asking about your views on global warming, but I don't think they should be allowed to broadcast information the way they are.

2006-11-25 08:31:10 · 14 answers · asked by Samantha 2 in Earth Sciences & Geology

A car runs the first 5000 miles at 40 miles to the gallon of fuel and the next 5000 miles at 36 miles to the gallon. What is the average petrol consumption for the whole 10000 miles?

2006-11-25 08:28:25 · 5 answers · asked by John Frusciante 1 in Mathematics

The problem is 3x(squared) +6x +3 = 0

The choices for the answer are:

x=1
x=-1
x=0
no real solution

2006-11-25 08:27:17 · 4 answers · asked by tia 3 in Mathematics

I know its becuase parents are that color, but like how did people become white or black in the first place, and what cuases that?

2006-11-25 08:27:03 · 11 answers · asked by p.i.s.t.o.n.s. 1 in Paranormal Phenomena

There are lots of claims that people have been eaten by giant squid, including a story that some sailors on the USS Indianapolis were eaten by one after the ship was sunk. However, I have never been able to find any reliable sources to back up any of these stories. So, does anyone know of any reliable sources about people being eaten by giant squid.

2006-11-25 08:26:56 · 10 answers · asked by Radioactive Sushi 2 in Zoology

a) strong, concentrated
b) strong, dilute
c) weak, concentrated
d) weak, dilute

please explain. thanks. (q41)

2006-11-25 08:25:28 · 1 answers · asked by *AH AH* 1 in Chemistry

The problem is y= -2x(squared) +12x -20

The choices for the answer are:

(-2,20)
(-3,-74)
(2,-12)
(3,-2)

2006-11-25 08:24:43 · 4 answers · asked by tia 3 in Mathematics

2006-11-25 08:24:02 · 5 answers · asked by Lebron FANN 3 in Mathematics

The problem is x(squared) -7x +10

The choices for the answer are:

(x-5)(x+2)
(x+5)(x+2)
(x-5)(x-2)
(x+5)(x-2)

2006-11-25 08:22:35 · 4 answers · asked by tia 3 in Mathematics

2006-11-25 08:21:22 · 5 answers · asked by Skitty 1 in Astronomy & Space

The problem is f(x) -x (squared) +4x

The choices for the answer are:

minimun
maxiumum
neither
cannot be determined

2006-11-25 08:20:40 · 5 answers · asked by tia 3 in Mathematics

2006-11-25 08:20:31 · 2 answers · asked by John Frusciante 1 in Mathematics

2006-11-25 08:14:23 · 5 answers · asked by jrmerch1358 1 in Physics

2006-11-25 08:10:59 · 8 answers · asked by tia 3 in Mathematics

I kind of thought science would have come up with something to make housework easier by now. Not that I iron of course!!

2006-11-25 08:09:14 · 25 answers · asked by Anonymous in Astronomy & Space

If I was to fold my (particularly big) sheet of paper in half, then it doubles it's height. If I fold it in half again, it is now four times it's original height. How many times must I fold it to make it reach the moon?

2006-11-25 08:07:55 · 13 answers · asked by Raygun 2 in Astronomy & Space

This is a calculus question dealing with extrema. Here's the function: f(x)=x/(x+1)

I don't know, I'm having a mental block, any help would be appreciated.

2006-11-25 08:07:53 · 5 answers · asked by my nickname 2 in Mathematics

A 0.50m long guitar string, of a cross-sectional area 1.0x10^-6 m^2., has a youngs modulas of 2.0x10^-9 n/m^2. how much would you have to stretch the string to get a tension of 20 N?

2006-11-25 08:05:22 · 1 answers · asked by Trevor M 1 in Physics

in terms of chemical density and viscosity etc...?

2006-11-25 08:04:05 · 8 answers · asked by Anonymous in Chemistry

This question is math- related, and I'm having difficulty understanding this concept, which I need for one of my math problems.

2006-11-25 08:03:03 · 2 answers · asked by orc-slayer36 1 in Mathematics

2006-11-25 08:01:48 · 2 answers · asked by satirecafe 3 in Chemistry

2006-11-25 08:01:41 · 4 answers · asked by angelestic_dude 1 in Engineering

Please don't make this up, I'm really asking.

2006-11-25 07:59:55 · 11 answers · asked by Anonymous in Astronomy & Space

2006-11-25 07:59:43 · 4 answers · asked by angelestic_dude 1 in Engineering

What do you want to bet that changes if I put beer in the birdbath?

2006-11-25 07:57:59 · 10 answers · asked by Ms. Roxie 2 in Zoology

As long as we're sharing nerdy math jokes, Mr. "square root of 69 equals 8 something", here's another, less dirty one.

Did you know that Halloween = Christmas?

This is because OCT 31 = DEC 25.

(hint, what's another name for writing a number in base 8? base 10?)

2006-11-25 07:57:02 · 1 answers · asked by Jim Burnell 6 in Mathematics

Centripetal force help anyone? I dont need a website i just want you to type out how you figured it out and the answer so here goes:

1.What is the centripetal force acting on an 1.5kg object moving in a circular path wiht a centripetal force of 18 m/s2?

2.A 100 g mass is attched to a string 75sm long and swings in a horizontal circle the mass goes around its path once ever .80 sec.
What is the centripetal acceleration of the object and calc the tension of the string

3. It takes a 900 kg racing car 12.3 seconds to travel at a uniform speed around a circular racetrack of 90 meteter radius
what is the centripetal acceleration of the car?
How much centripetal force is acting on the car?
What provides the centripetal force?

2006-11-25 07:56:15 · 3 answers · asked by xhbvi3tboix 3 in Physics

2006-11-25 07:55:41 · 2 answers · asked by kristin e 1 in Biology