Science & Mathematics - 23 August 2007

A long thin rod of length 2L rotates with a constant angular acceleration of 10 rad/s2 about an axis that is perpendicular to the rod and passes through its center.

What is the ratio of the angular speed (at any instant) of a point on the end of the rod to that of a point a distance L/2 from the end of the rod?
a) 1:1
b) 1:2
c) 4:1
d) 1:4
e) 2:1

2007-08-23 16:03:53 · 1 answers · asked by Anonymous in Physics

1. How is it done? Why does it produce energy?
2. How does it worK? How does it apply to the technology?
3. Give present day examples...?

2007-08-23 16:03:02 · 4 answers · asked by jinme92 1 in Earth Sciences & Geology

I was gest cerest is a hurrican like a tornado but on water. This came up from my family and friends. So is it

2007-08-23 16:01:20 · 4 answers · asked by Dakota S 1 in Weather

eachother? It is for my science homework.

2007-08-23 15:59:27 · 3 answers · asked by Alithea 1 in Other - Science

since it has something to do with oxygen entering the blood so it turns red, but if your in outter space wouldn't it stay blue.

2007-08-23 15:49:39 · 8 answers · asked by Anonymous in Astronomy & Space

2007-08-23 15:46:15 · 12 answers · asked by Anonymous in Astronomy & Space

full moon on the 28th,is it a lunar eclispe

2007-08-23 15:45:54 · 4 answers · asked by peanut m 1 in Astronomy & Space

I'm more interested in how it's done than in the answer.

2007-08-23 15:41:52 · 3 answers · asked by math q 2 in Mathematics

Hi i was just wondering if the lunar eclipse of 28 aug 2007 will be visible from Singapore?

From the graphs i've seen, it seems we'll just barely be able to catch a little of it at moonrise... if we manage to find a real good viewing spot.

Can anyone confirm this for me?

Any help rendered will be greatly appreciated!!! ^^

2007-08-23 15:40:29 · 8 answers · asked by James C 1 in Astronomy & Space

2007-08-23 15:40:01 · 4 answers · asked by Anonymous in Astronomy & Space

x^3-4x^2-3x-10,x-5

2007-08-23 15:38:31 · 2 answers · asked by luicanna 1 in Mathematics

say the mother has a B+ and the father is A-

is it possible for one of their children to be O+

support for answer would be nice

2007-08-23 15:38:25 · 9 answers · asked by ... 5 in Biology

can someone please tell me step by step how to get the answer


X
7 = 3 (of course the "x" is small)


AND this one


log6 4+log6 9 (the "6's" are small.

AND

f(x)=x squared-kx+1. If f(2)=3...then k=?

2007-08-23 15:36:07 · 3 answers · asked by AmericanBulldogLover 1 in Mathematics

...and you walk in the same direction that the craft is travelling. Would you not be moving faster than light?

The way I see it, there are only two possibilities.

You ARE moving faster than light or you're unable to move due to a force I, as a lay person, know nothing about.

2007-08-23 15:32:36 · 23 answers · asked by Anonymous in Astronomy & Space

It was actraced to the light, like most moths are. Is it poisouns? i think it was a light brown tiger moth. with white stripes, almost like stained glass. After i touched it, i saw a redish bite, really small where the powder was,( I washed the powder off of course.) i don't know if the bite was there before or after it bit me. Could it be poisenous? I tryed to find it on google, but no luck. PLEASE TELL ME I WONT DIE!!

2007-08-23 15:31:57 · 11 answers · asked by ♦kiwi♦ 2 in Zoology

60mg=______cg
2cl=_______ml
11cg=_______mg
1100cm=________m
5000ml 3186cl=_________l 86cl

2007-08-23 15:31:11 · 4 answers · asked by Anonymous in Chemistry

Years ago, I felt the frequent bumps. Now I don't anymore. Once in a while, I ride the Metra line in Chicago. I never feel the expansion joint bumps. How's that possible?

2007-08-23 15:19:36 · 4 answers · asked by L Dawg 3 in Engineering

true or false questions....
1. the rational numbers are a subset of irrational numbers.

2. if a number is expressed as a decimal, then it is rational.

3.every rational number is a real number.

4. if a number is rational, it cannot be irrational.

Please help me with this and i have more to come i'm just doing a lil at a time

2007-08-23 15:17:03 · 3 answers · asked by Stephani K 1 in Mathematics

Last year, I took both General Chemistry 1 and 2....I passed General Chem 1 but I don't feel like I learned ANYTHING but then in General Chem 2 I worked my butt off to get a B, but I don't remember much, especially the labs. Does Organic Chem really use alot of General Chemistry? Will I be in big trouble if I can't remember all the principles and stuff? I have to take both Organic Chem 1 and 2

2007-08-23 15:14:44 · 4 answers · asked by daisy 4 in Chemistry

chemistry question

2007-08-23 15:14:40 · 6 answers · asked by rigo rigo 1 in Chemistry

I live in south Louisiana and sugar cane is grown everywhere here. Between that and soy beans it's a huge crop for the area. I've watched the cultivation process all my life and notice that it is replanted every year. My question(s) are after the cane stalk is cut at harvest time wouldn't it sprout again?Why does it have to be replanted every year,and what is the average yield per acre of refined white sugar?

2007-08-23 15:10:45 · 3 answers · asked by ericbryce2 7 in Botany

I am not good at math at all, everyone in my Chem class already in Algebra II Trig. I am in Geometry. I know Physics isn't exactly easy, but Chemistry is really giving me a hard time. Should I move to Physics?

2007-08-23 15:04:02 · 5 answers · asked by Nicole 5 in Other - Science

1) (7^4)a^3b^2c

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

2007-08-23 15:03:02 · 2 answers · asked by Anonymous in Mathematics

the three im stuck on are
(x-2)(3-x)>0
x^4-1<0
(x-2)/(x-3)>or equals to 0

PLEASE HELP!!!

2007-08-23 15:02:42 · 3 answers · asked by Anonymous in Mathematics

Ok I have this worksheet and I cannot find these symbols anywhere can you please help me -
[dot] P
p[arrow]q
q[arrow]p
~p[arrow]~q
~q[arrow]~p
p<->(thats supposed to be an arrow going 2 sides)

thanks so much!!!

2007-08-23 15:01:22 · 3 answers · asked by no one 5 in Mathematics

Think of space as a balloon. As it expands there must be space that it's expanding into...right? So, what's on the other side of the fabric of space? I'd hate to think we're just candy in a pinata waiting to be hit by a stick!

2007-08-23 15:00:45 · 7 answers · asked by kenep59 2 in Astronomy & Space

can anyone explain wha each variable emans in teh formula
K = No * e^(kt)

It ahs to do with finding the popualtion growth rate over periods of time.?

2007-08-23 14:58:16 · 4 answers · asked by Tangoant 1 in Mathematics

2007-08-23 14:57:47 · 2 answers · asked by Anonymous in Weather

and no 2 lines lie in the same place its a math question.///

2007-08-23 14:51:49 · 4 answers · asked by mike 1 in Mathematics

2007-08-23 14:48:01 · 2 answers · asked by mick 2 in Geography