Science & Mathematics - 2 July 2007

Here's a question that was posted before in a different section, but I began to think about . . .

The median number of lifetime female sexual partners for men was seven; the median number of male partners for women was four.

from:

http://www.msnbc.msn.com/id/19374216/

How is this possible? How can men have a net average number of female partners greater than that of women given that the initial ratio of male/female is 1:1?

2007-07-02 08:47:31 · 11 answers · asked by supastremph 6 in Mathematics

2007-07-02 08:46:39 · 13 answers · asked by Anonymous in Mathematics

Solve the equation by a method of your choice?

1.6x^2+5x+1=0
2.4x^2+15x+9=0
3. x^2-36=0
4.x^2+12+36=0

2007-07-02 08:45:47 · 2 answers · asked by Berry A 2 in Mathematics

If the sides of a square are decreased by 2 cm, the area is decreased by 36 cm^2. What were the dimensions of the original square?

Any help is much appreciated!

2007-07-02 08:42:17 · 9 answers · asked by Anonymous in Mathematics

pitch
loudness
amplitude
intensity

2007-07-02 08:39:23 · 3 answers · asked by Amber 1 in Physics

I don't have a telescope yet but I do a little amatuer astrophotography in my spare time. I took an amazing picture of Andromeda Galaxy last night completely on accident while I was trying to snap a photo of Mars. I took the photo with a Kodak Z710 with an 8 second shutter time. Check out my picture @ myspace.com/blakehofmann

2007-07-02 08:35:09 · 5 answers · asked by Anonymous in Astronomy & Space

The illumination at a point is inversely proportional to the square of the distance of the point from the light source and directly proportional to the intensity of the light source. If two light sources are 20 feet apart and their intensities are 30 and 20 respectively, at what point between them will the sum of their illuminations be a minimum?

2007-07-02 08:34:40 · 2 answers · asked by Anonymous in Mathematics

A company manufactures two products. One requires 2.5 hours of labor, 3 pounds of raw materials, and costs $42.40 each to produce. The second product requires 4 hours of labor, 4 pounds of raw materials, and costs $64.00 each to produce. Find the cost of labor per hour and the cost of raw materials per pound.

the answer is $11.20/hour labor; $4.80/pound materials

2007-07-02 08:24:26 · 5 answers · asked by Anonymous in Mathematics

2007-07-02 08:22:29 · 1 answers · asked by Anonymous in Earth Sciences & Geology

How does the insect's body shut down to the point of death?

2007-07-02 08:21:36 · 6 answers · asked by L.B. of D.C. 1 in Biology

A)they live mainly in extreme condition s without oxygen
B)some live in marshes,lake sediments,sewer,and cow digestive tracts
C)some live in hot acidic sulfurous water enviroments and others live in the great salt lake
D)some can carry on photosynthesis and live in sunlight.

2007-07-02 08:21:30 · 2 answers · asked by Anonymous in Biology

Messages do not seem to be going, is it the rain? Or what?

2007-07-02 08:21:06 · 8 answers · asked by john brian w 1 in Weather

won't biofuel become so nessesary for human survival that we'll be at the mercy of plants to keep us going?

2007-07-02 08:20:58 · 6 answers · asked by Ani M 1 in Botany

2007-07-02 08:20:56 · 4 answers · asked by red_39560 1 in Medicine

fusion,.,example from solid to liquid.,.

2007-07-02 08:18:09 · 4 answers · asked by lamjals 1 in Chemistry

5,9,15,24,37
(please show method)

2007-07-02 08:17:31 · 4 answers · asked by Anonymous in Mathematics

ill just draw up a scenario.

your walking down the street and you see a cat mauling a bird.

the cat sees you then leaves(he drops the bird)

like i said the bird is hurt badly

is it right to finish the bird? or should i let fate/god(whatever you believe) decided, and ya the bird probably will die.

i never know what to do. one time i closed my eyes while i stepped/suffocated the poor snake with my shoe (he was ripped up badly when i found him)

i felt pretty bad about it though.

it always seems like a rock and a hard place....my parents took my dog to the vet to put her to sleep(bad arthritis in all 4 legs) i know it was right to end her suffering but i still felt uneasy about my parents giving up on her like that.

2007-07-02 08:16:58 · 9 answers · asked by mannyg2199 4 in Zoology

2007-07-02 08:14:28 · 12 answers · asked by DL 1 in Engineering

2007-07-02 08:12:18 · 6 answers · asked by Anonymous in Physics

on a missle to launch at the sun to blow some of it off it could stop globel warming from going so fast do u think it would slow globel warming down or do u think we do not have the technoligy

2007-07-02 08:10:56 · 10 answers · asked by Anonymous in Astronomy & Space

i'm talking about popcorn.

2007-07-02 08:10:56 · 3 answers · asked by Anonymous in Chemistry

A turntable of mass 4.63 kg has a radius of 0.086 m and spins with a frequency of 0.537 rev/s. What is its angular momentum? Assume the turntable is a uniform disk.

need physics help!! i appreciate it!

2007-07-02 08:10:43 · 2 answers · asked by Kelly 1 in Physics

2007-07-02 08:04:22 · 13 answers · asked by TeeHee 3 in Astronomy & Space

Say seeing is 1 second of arc one night, near the zenith. Is it possible to get close enough to a building to see better than 1 second of arc on it?

Because there's less total atmosphere between you and the building than between the star and space

How close do you have to be?

2007-07-02 08:03:33 · 4 answers · asked by anonymous 4 in Astronomy & Space

a squarewave with amplitude 9.6v.

a triangle wave with amplitude 130v.

2007-07-02 08:00:24 · 1 answers · asked by briarfields 1 in Engineering

i REALLY need help simplifying this
(1+(1/x))/(1-(1/x^2)) i know the answer is x/(x-1) but i have no idea how to get there

2007-07-02 07:59:28 · 6 answers · asked by Anonymous in Mathematics

I would like to get into astronomy and I've heard a good pair of binoculars might be a good and basic place to start. What strength should I look at? Also, where would I be able to buy some start charts? Would I be able to find them somewhere in a store? Is there any thing else I should consider?

2007-07-02 07:55:37 · 2 answers · asked by Simba 7 in Astronomy & Space

Write a quadratic equation that has the given solutions.

1. 3 and 2
2.1 and 3

2007-07-02 07:54:16 · 4 answers · asked by Berry A 2 in Mathematics

how do you know which way is east, west, north, or south?

2007-07-02 07:43:47 · 8 answers · asked by skilled_cuer 3 in Astronomy & Space

2007-07-02 07:41:38 · 21 answers · asked by in12321 2 in Zoology