Science & Mathematics - 4 December 2006

Here it is: 3 squirrels gather a pile of nuts and decide to store the pile outside their house overnight. During the night, 1 of the squirrels wakes up hungry and decides to steal 1/3 of the pile but he has to eat one in order to be able to take exactly 1/3. He leaves 2/3 of the nuts behind and goes back to bed. Exactly the same thing happens to the 2nd squirrel, who wakes up, eats 1 of the nuts, steals exactly 1/3 of the pile that's left, and goes back to bed. Then precisely the same thing happens to the third squirrel. She eats 1 nut, hides away 1/3 of the remaining nuts, and goes back to bed. In the morning, the 3 squirrels awake and divvy up the pile which is not empty. It divides exactly into three.
What is the amount of nuts that was in the original pile?

2006-12-04 14:12:13 · 3 answers · asked by sugarplum_42223 2 in Mathematics

You are boating on a river that flows toward the east. Because of your knowledge of physics, you head your boat 53 degrees west of north and have a velocity of 6.0 m/s due north relative to the shore.

a. What is the velocity of the current?

b. What is the speed of your boat relative to the water?

Please help me with this problem.
I'm having trouble understanding it.

I asked this question once before, but the answer I received was not helpful.

2006-12-04 14:11:14 · 1 answers · asked by swimmertommy 1 in Physics

is the fibonacci sequence never ending or does it just stop at:
1, 1, 2, 3, 5, 8, 13, 21?

2006-12-04 14:11:00 · 3 answers · asked by Anonymous in Mathematics

I have a stock concentration of 100uM, these volumes are so small they are confusing me - I know it is possible because my PCR protocol calls for 1.0 and 0.05 pmol of primers. Any help? THANKS!

2006-12-04 14:10:44 · 2 answers · asked by pMn 1 in Biology

You row a boat, click for picture, perpendicular to the shore of a river that flows at 3.0 m/s. The velocity of your boat is 4.0 m/s relative to the water.

*Picture link:
http://img208.imageshack.us/img208/7021/scanye9.jpg

a. What is the velocity of your boat relative to the shore?

b. What is the component of your velocity parallel to the shore? Perpendicular to it?

Please help me with this problem.
I'm having trouble understanding it.

2006-12-04 14:09:55 · 1 answers · asked by swimmertommy 1 in Physics

like birds have wings to fly away from predators..... stuffs like that. im researching snowbushes from coniferous forests.

2006-12-04 14:09:37 · 1 answers · asked by beyondxxdreamz 2 in Biology

How many of the unit sqaures does a diagonal of the rectangle pass through?

2006-12-04 14:08:34 · 4 answers · asked by Anonymous in Mathematics

An airplane flies at 200.0 km/h relative to the air. What is the velocity of the plane relative to the ground if it flies during the following wind conditions?

a. 50.0-km/h tailwind

b. 50.0-km/h headwind

I'm confused on this problem.
Please help!

I asked this question before, but the answers were not helpful.

2006-12-04 14:08:31 · 3 answers · asked by swimmertommy 1 in Physics

How would you find the off springs( the top and the side things to put out side of the punnett square).
Mr.Easter : EeTtHh
Mrs. Eater: EeTtHh. You have to foil three times just tell me what the letter going to be when FOIL three times. Please Help. I will do the rest just tell me the letters. Thank you.

2006-12-04 14:08:22 · 1 answers · asked by Best Helper 4 in Biology

Which hypothesis on the origin of life states that proteins, lipids, and other complex organic molecules formed when energy from the sun and other sources caused chemical reactions among gases in Earth's prehistoric atmosphere?

Primordial soup
Spontaneous Generation
Biogenesis
Self-Replicasting molecules

2006-12-04 14:07:28 · 2 answers · asked by Anonymous in Biology

We had a discussion tonight probably because there is a full moon. So for any scientists out there if the moon was compromised somehow what would happen to our world. In
the new movie version the Time Machine the moon broke up
so that's also what prompted this question. Any answers?

2006-12-04 14:06:42 · 4 answers · asked by mscandura2003 2 in Earth Sciences & Geology

2006-12-04 14:05:57 · 1 answers · asked by Megan D 1 in Chemistry

2006-12-04 14:03:35 · 0 answers · asked by Anonymous in Mathematics

Hi, I was wondering how I should do this problem and if I am doing it correctly.

lim x -> +infinity
xSIN(1/x)
= xSINx^-1
= -COSx^-2
= 1/COSx^2
Im not sure what to do after this or if I did this right.
Thanks for the help

2006-12-04 14:03:25 · 6 answers · asked by drewms64 2 in Mathematics

If the series was:
(1/1) + (1/2) + (1/3) + (1/4) + (1/5) + .. + (1/infinite),
is it true that the sum of this series is infinite? If so, how do you prove this?

2006-12-04 14:02:24 · 2 answers · asked by Ms. Curiosity 1 in Mathematics

2006-12-04 14:02:23 · 5 answers · asked by dingdong 2 in Earth Sciences & Geology

2006-12-04 14:01:44 · 3 answers · asked by Anonymous in Botany

Im doing a persuasive essay on genetic animal engineering for school.
im against it.
i need some facts or websites to help me please.
thank you

2006-12-04 14:01:33 · 1 answers · asked by Anonymous in Engineering

2006-12-04 14:00:51 · 16 answers · asked by ? 2 in Physics

and why?

2006-12-04 14:00:22 · 11 answers · asked by Anonymous in Zoology

2006-12-04 14:00:20 · 11 answers · asked by Natalie 1 in Mathematics

1)well if there's a eqation like -3xsquared-9x+1 , then how will you find the vertex.

2)and if you have that exact same equation and you have to write it in this form: a(x-h)squared+ k , how will you do that.

thanks!!

2006-12-04 13:59:41 · 3 answers · asked by tweety_mm19 2 in Mathematics

a) CaCl2(aq) is a product
b) When balanced the coefficient of HCl(aq) is 2
c) The molecular equation is the net ionic equation
d) OH-(aq) does not appear in the net ionic equation
e) Cl -(aq) does not appear in the net ionic equation

2006-12-04 13:59:23 · 1 answers · asked by Anonymous in Chemistry

2006-12-04 13:59:07 · 5 answers · asked by Natalie 1 in Mathematics

For the reaction BaCl2 (aq) + ZnSO4 (aq), BaSO4 precipitates out.

Calculate the percent yield(%) if 15.956 g of BaSO4 precipitates when 1.750 L of 0.0600 M BaCl2 (aq) and 1.460 L of 0.0553 M ZnSO4 (aq) are mixed.

2006-12-04 13:57:41 · 4 answers · asked by Anonymous in Chemistry

2006-12-04 13:57:07 · 7 answers · asked by Crofty 1 in Physics

A satellite has a mass of 100kg and is in an orbit at 2.00 times 10 to the 6th power m. above the surface of the Earth. What is the potential energy of the satellite at this location? What is the magnitude of the gravitational force on the satellite?

2006-12-04 13:56:05 · 2 answers · asked by Kitana 2 in Physics

Hi,

I am looking for a source of tiny (e.g. 2mm x 1mm x 1mm) surface mount
leds that blink.

I know that circuits can be constructed for this purpose but I assume
that if you can buy larger bulb type leds that flash that the work may
already have been done and miniaturized for a surface mount product.

The flash length and dwell time is not really important to the purpose.

Thanks for any leads :)

CP

2006-12-04 13:56:00 · 3 answers · asked by cp s 2 in Engineering

physics energy problem

2006-12-04 13:55:56 · 1 answers · asked by britt m 1 in Physics

allllrighty i really pretty much suck at algebra. just a quick question. if you can explain this prob that'd be wonderful!!
Actually there's 2.

1) The distance between a number and 7 on a number line is less than 5. Write and solve an absolute value inequality to represent this statement.

2) A bearing for a new sports car must be manufactured within 0.001 mm of its circumference of 2.35 mm. Write and solve an absolute value inequality to describe the largest and the smallest possible circumference for the bearing.

WOW does ANY1 understand this??

2006-12-04 13:55:08 · 3 answers · asked by Anonymous in Mathematics