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Science & Mathematics - 25 October 2006

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Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

2006-10-25 08:23:50 · 17 answers · asked by o0ojazzo0o 4 in Astronomy & Space

2006-10-25 08:21:59 · 7 answers · asked by scott t 1 in Biology

a 17 cm diameter & may be approximated as a thin spherical shell. How long will it take for a basketball starting from rest to roll without slipping 3.1 m down an incline with an angle of 74.7 degrees with the horizontal (in units of s)?

2006-10-25 08:19:12 · 2 answers · asked by Dee 4 in Physics

2006-10-25 08:13:40 · 7 answers · asked by rhapsody11 2 in Biology

2006-10-25 08:10:56 · 7 answers · asked by Live & Let Live! 1 in Astronomy & Space

2006-10-25 08:05:19 · 4 answers · asked by Dr.C 3 in Other - Science

For a t-test is one for paired data and one for independent samples?

2006-10-25 08:04:16 · 6 answers · asked by sticky 7 in Mathematics

Hurricanes happen in the southeastern U.S. and the Caribbean. Why don't hurricanes happen on the western coast? Thanks in advance for your answers.

2006-10-25 08:01:37 · 23 answers · asked by tarbh_coinean 1 in Weather

Do you think we derived from bubbles, fish, or apes? Who made the apes then? Where did the Bubbles come from? And what about fish? Do you think it all happened by accident? Some coincidence. Considering every thing has a specific purpose. In fact the odds are 0 to none. Someone had to make the food for the apes. and the chemicals to keep the food alive. and the atoms that construct those chemicals. so go ahead and try to prove the truth wrong. the truth that the creator of everything, God, made everything for a purpose. It's no theory it's the truth.

2006-10-25 07:59:35 · 7 answers · asked by ? 1 in Other - Science

with a mass of 3.49 kg and a radius of 0.075 m starts from rest at a height of 3.60 m and rolls down a 43.8 degree slope. Acceleration of gravity is 9.81 m/s^2.

What is the translational speed of the cylinder when it leaves the incline in units of m/s?

2006-10-25 07:58:21 · 1 answers · asked by Anonymous in Physics

2006-10-25 07:57:32 · 4 answers · asked by zenith 1 in Mathematics

2006-10-25 07:56:59 · 23 answers · asked by Anonymous in Geography

2006-10-25 07:56:53 · 14 answers · asked by o0ojazzo0o 4 in Astronomy & Space

2006-10-25 07:55:51 · 28 answers · asked by Anonymous in Geography

when you think of the size of the universe and how tiny little beings we are.
but yet we have so much pressure worries troubles ect ect..

2006-10-25 07:53:15 · 21 answers · asked by o0ojazzo0o 4 in Astronomy & Space

Don't cheat, just try to figure it out with your brains!

2006-10-25 07:47:56 · 18 answers · asked by kalamibe 2 in Geography

I have to to estimate the relationship between OTR (cc/m^2/day) & WVTR (g/m^2/day)
WVTR is for water vapor transmission rate
OTR is for oxygen transmission rate
In the two tests, effective surface area of film tested was 10 cm^2
Here is the result I have to find the relation (it's have to include thickness of the plastic film)

plastic 1082 have a thickness of 0.0044 in
WVTR : 4.8
OTR : 120

Plastic 1083 have a thickness of 0.0045 in
WVTR : 0.88
OTR : 2.6

With that, I will find the WVTR value for a plastic of 0.00289 inche and OTR known value

Please show me how to find the relation between thickness, WVTR and OTR

Thanks a lot!

2006-10-25 07:47:27 · 1 answers · asked by Melia 2 in Other - Science

What are somethings scientists have learned about AIDS, HIV and/ or ARC ? HOw does the infection process work ? WHat are the complications and treatments ?

2006-10-25 07:46:33 · 3 answers · asked by Anonymous in Biology

2006-10-25 07:45:59 · 14 answers · asked by Anonymous in Physics

2006-10-25 07:44:00 · 24 answers · asked by Anonymous in Physics

(O2) rotating in the xy plane about the z axis passing through its center, perpendicular to its length. The mass of each oxygen atom is 2.66 x 10^ -26 kg, at room temperature, and the average separation distance between the two oxygen atoms is 2.02 x 10^ -10 m (atoms treated as point masses).

If the angular speed of the molecule about the z axis is 5.61 x 10^12 rad/s, what is its rotational kinetic energy in units of J?

2006-10-25 07:38:39 · 4 answers · asked by Mariska 2 in Physics

Ok, assume Im a being so large that the galaxy you live in (The Milky Way) would be the distance from the tip of my index finger to the base of my index finger. (I know that this is an insanely large, being but whatever)

Now, if I were to hold my index finger next to the Milky Way and move it from one end of the galaxy to the other, I would have moved a HUGE distance. (I dont know the actual distance) Both to me and the people in the galaxy. (However, this distance wouldnt feel small to me, but it would if I take it relative to those in the milky way)

Because Im so big it would take me only a matter of a half a second to move that distance. However, it takes light thousands of years to move that distance. How is my finger not moving at speeds over the speed of light? (Which we know to be impossible) So if my finger and a beam of light started moving at the same time from one side of the galaxy to the other, I would win. How is this possible? I must be missing something obvious...

2006-10-25 07:36:43 · 14 answers · asked by James 1 in Astronomy & Space

PbCl2 + K2CrO4 >>> KCl ____________

2006-10-25 07:31:12 · 3 answers · asked by Anonymous in Chemistry

Why arent they above areas that cause the damage instead of areas where No damage occurs? This doesnt make sense to me.

2006-10-25 07:23:25 · 6 answers · asked by Angel Eve 6 in Earth Sciences & Geology

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