Science & Mathematics - 1 November 2007

find the area of the region which is inside the polar curve r=6cos(theta) and the outside polar curve is r=4-2cos(theta).
what is the area?

2007-11-01 14:42:14 · 3 answers · asked by vntraderus88 1 in Mathematics

if so there must be life out there

2007-11-01 14:42:07 · 14 answers · asked by Anonymous in Astronomy & Space

I've heard alot of noise about there being no (or very few) transitional fossils & about different species of hominids co-existing and therefore not being ancestors of one another and I am confused. I understand that micro-evolution(changes within in a given range in a particular species) is observable and repeatable, but macro-evolution (radical changes from one species to another) is not. We can't see it happen in the lab so we can't repeat it, it is a matter of history and therefore only proveable by the fossil record right?

So does the fossil record support it? I'm not trying to sound ignorant, I am not a Biologist, I work in Computer Science so this is not my strong point. I am hoping for intelligent answers.

2007-11-01 14:41:57 · 7 answers · asked by Anonymous in Biology

2007-11-01 14:41:50 · 0 answers · asked by lunis_mcleod 2 in Chemistry

The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.022 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.062 kg and is initially at rest. The collision is not head-on. After the collision, the two pucks fly apart with Puck A angle 65 degrees and Puck B 37 degrees.

Find the final speeds of both puck A and puck B?

2007-11-01 14:40:34 · 2 answers · asked by bigg310ez 1 in Physics

by the ways, the numbers are small numbers on the bottom .
CuSO4H4-----H20+CuSo4

2007-11-01 14:40:19 · 2 answers · asked by Michelle S 2 in Mathematics

how do we know? how can we tell?

2007-11-01 14:40:08 · 2 answers · asked by Laivwudbbetorw/omwuah 1 in Mathematics

How many milliliters of 2.50 M H2SO4 are needed to neutralize 25.0 g of NaOH

2007-11-01 14:38:00 · 1 answers · asked by dukebasketball1992 2 in Chemistry

2007-11-01 14:36:45 · 6 answers · asked by madeup6 4 in Chemistry

give the structural, molecular, and empirical formulas of hydrogen peroxide.?!

2007-11-01 14:36:09 · 2 answers · asked by Anonymous in Chemistry

a subculture of cybernetic androids, and all the bad effects from the year 2012 remained toying with our minds and happiness. Followed by an earth rotting pandemic launched by a nano-technically inclined 8 year old genetic engineer/ punk.

Do you think we would survive?
What do you think would happen...

links would be appreciated

2007-11-01 14:36:07 · 8 answers · asked by Mercury 2010 7 in Astronomy & Space

whats 1+1 equal... dont worry i know the answer this is just a test for something

2007-11-01 14:35:01 · 8 answers · asked by John P 2 in Mathematics

today in my algebra class my teacher was going over the pythagoreum theorum and gave us a few problems to work on ind i saw this. Side A=6 times 2 squared Side B=6 Side C=X
Solve for x. when we went over the problem he used the term radical to explain the way to find side A and said it was something to with 6 radical 2 what in the world is a radical or did i mishear what he said? is it not even a square root or anything to do with squares? i dont know step by step instructions would help but links are also welcome

2007-11-01 14:34:34 · 6 answers · asked by Levi 2 in Mathematics

Its part of a take home test and i need help!
How do you solve:

5x+2/x^2-4= -5x/2-x + 2/x+2

2007-11-01 14:31:42 · 6 answers · asked by Anonymous in Mathematics

2007-11-01 14:30:53 · 7 answers · asked by N3N4 1 in Astronomy & Space

let (X, T) be a topological space with A closed subset of X, B a connected subset of X s.t. A intersect B non-empty. if there is non-empty W a subset of B with W interset A non-empty. show B intersect boundary of A.

2007-11-01 14:28:34 · 2 answers · asked by Anonymous in Mathematics

What are the effects of low solar activity on climate in the Northern Hemisphere?

2007-11-01 14:27:02 · 1 answers · asked by Anonymous in Astronomy & Space

In my previous post here I talked about john edwards being fake. I asked anybody out on here if they were real, http://answers.yahoo.com/question/index;_ylt=AtYjVL2eSUEcrrUyOkNogBPsy6IX;_ylv=3?qid=20071101175131AABcNCB
I didn't tell anyone anything about me except that I was female. The girl named Tammy L nailed everything right and Idk how. Theres no pictures of "the baby" posted here. I dont tabout aids on here or anyhting. In fact that was my first post ever on yahoo answers I believe. She made me cry like a faucet. HOW THE HECK DID SHE NAIL IT ALL RIGHT?

2007-11-01 14:26:43 · 14 answers · asked by Anonymous in Paranormal Phenomena

Do any of you know any good websites. I have to construct a plant or animal cell for school like out of household materials, arts and crafts and whatnot. I need help getting started and what to do/materials and etc. Can any of you help me? Thanks!

2007-11-01 14:26:13 · 1 answers · asked by Folks~ 1 in Botany

At STP 4.83 L of chlorine is produced during a chemical reaction. What is the mass of this gas? Answer in unites of g.
(please include all decimal places; no sig figs, float)

2007-11-01 14:25:00 · 3 answers · asked by The Wind 2 in Chemistry

A sample of 1.029g of KC8H5O4 was titrated with an NAOH solution of unknown concentration. If 22.83 mL of base was used to reach the endpoint, what was the concentration of NaOH? What mass of KC8H5O4 should be used such that a volume of NaOH between 35-40 mL is needed to reach the endpoint?

2007-11-01 14:24:57 · 2 answers · asked by Anonymous in Chemistry

like i need the name if the area its found in

2007-11-01 14:23:08 · 3 answers · asked by punkeeo 2 in Earth Sciences & Geology

2007-11-01 14:22:29 · 2 answers · asked by Day-Z 1 in Astronomy & Space

The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.022 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.062 kg and is initially at rest. The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing.

2007-11-01 14:22:02 · 2 answers · asked by bigg310ez 1 in Physics

1.What is the sum of the roots of 3x^2-7x+8=0?
a. 3/7 b. -7/3 c. 7/3 d. -3/7
2. What is the remainder when P(x)=x^3-7x+5 is divided by x-1?
a. -1 b. 1 c. 5 d. -5
3. Factor completely: x^3-6x^2+3x+10
4. What is the range of the function y+x^2-3x-10?
5.If P(x) is a polynomial with a positive degree, then P(x) has at least one zero.
a. the number root theorem
b. The fundamental theorem of algebra
c.The remainder theorem
d. the factor theorem
6. It occurs whenever 2 successive terms have opposite signs?
7. what is the formula of the division algorithm?
8. The domain of the quadratic function
a. the set of all real numbers
b. the set of positive and real numbers
c. the set of integers
d. the set of negative real numbers
9. How many turning points does the equation x^8-5x^2-2x+1 have?
10. Transform f(x)= -2x^2-16x+12 into vertex form.

2007-11-01 14:21:27 · 1 answers · asked by jazz 1 in Mathematics

With many new homes being built in Tornado Alley of the US you would think storm cellers should be a standard item. Do you feel there should be a law requiring a basic stormceller in each dwelling to save lives each year? If not, what would be your solution for occupant protection in homes against Tornadoes?

2007-11-01 14:20:54 · 2 answers · asked by bobe 6 in Weather

2007-11-01 14:19:28 · 12 answers · asked by Holly 1 in Mathematics

what is the purpose of a nucleus. any help is great!! thanks

2007-11-01 14:18:23 · 13 answers · asked by jessica p 1 in Biology

2007-11-01 14:18:17 · 2 answers · asked by cldgaray 1 in Chemistry

1. important chemical that cycles or is reused. (5 letters)

7. loss of water through leaves of plants.(1, third letter is a, 8th letter is r)

6. burning. (10 letters)

14. total dry weight of organismsin each level of a food chain or biomass pyramid.(7 letters, the 5th letter is a)

2007-11-01 14:16:49 · 4 answers · asked by Anonymous in Earth Sciences & Geology