Science & Mathematics - 20 November 2006

1. Consider two steel rods, A and B. B has three times the area and twice the length of A, so Young's modulus for B will be what factor times Young's modulus for A?

a. 3.0
b. 0.5
c. 1.0


2. An object has weight W on Earth. It is transported to the surface of Planet X which has 4 times the mass and 3 times the radius of Earth. What does the object weigh on Planet X?

a. (2/3) W
b. (9/5) W
c. (4/9) W
d. (1/9) W

Thanks a lot in advance guys!

2006-11-20 19:26:49 · 6 answers · asked by Anonymous in Physics

There seem to be a great number of people out there who are always trying to prove that they have telekinesis. There are also quite a few people who are constantly denying that TK is possible. Why don't the people who "can" do it sit down with the nonbelievers and show them? And why don't the nonbelievers ever ask the "psychics" to sit down and show them their ability? It seems to me that there's no need for all the debating..

2006-11-20 19:18:47 · 10 answers · asked by Anonymous in Parapsychology

2006-11-20 19:07:51 · 10 answers · asked by abdiasis22 1 in Botany

1 = 5

2 = 25

3 = 75

4 = 125

5 = ?

2006-11-20 18:55:51 · 15 answers · asked by Anonymous in Mathematics

How is the DNA of prokaryotes and eukaryotes different? five or more sent please. no encyclopedia definitions! thanks

2006-11-20 18:54:25 · 3 answers · asked by Sarah S 3 in Biology

2006-11-20 18:54:10 · 2 answers · asked by mira 1 in Mathematics

I intend to draw a map of Sierra Leone, showing incidence of malaria in children under the age of 5. It will depict these statistics by district and by town.

I intend to use pink for low incidence of malaria, red for moderate malaria incidence, orange for high incidence and purple for ongoing endemic levels of malaria.What software application is best to do a colour-coded map such as this? I'm thinking of smartdraw, AutoCad, Powerpoint. However, there must be some freeware or cheap shareware that is specifically for drawing maps. Please help.

2006-11-20 18:53:32 · 2 answers · asked by Dalton C 2 in Geography

Thanks.

2006-11-20 18:50:47 · 2 answers · asked by Anonymous in Chemistry

We have a group project in school that's about the human body, and part of the project is to ask 10-15 questions about our topic, could you please give me questions...

2006-11-20 18:46:29 · 4 answers · asked by Anna 2 in Biology

2006-11-20 18:45:22 · 7 answers · asked by damodharan c 1 in Physics

it seems to me they could be used the same way as river dams are.

2006-11-20 18:42:28 · 4 answers · asked by david e 1 in Engineering

2006-11-20 18:41:35 · 8 answers · asked by damodharan c 1 in Physics

2006-11-20 18:36:41 · 6 answers · asked by praveenplp 2 in Physics

2006-11-20 18:31:36 · 11 answers · asked by Anonymous in Physics

2006-11-20 18:24:44 · 1 answers · asked by melba 1 in Engineering

i want to know

2006-11-20 18:24:04 · 5 answers · asked by Anonymous in Weather

2006-11-20 18:23:44 · 1 answers · asked by satya n 1 in Chemistry

1)An object which absorbs most of the light waves which strike it but reflects the blue frequency

A)is opaque and appears blue
B)is transparent and appears blue
C)is opaque and appears yellow
D)none of these

2)An object which absorbsmost of the light waves which strike it but transmits the blue frequency


A)is opaque and appears blue
B)is transparent and appears blue
C)is opaque and appears yellow
D)none of these

Please explain why also.

2006-11-20 18:23:36 · 5 answers · asked by Anonymous in Physics

I was born with hazel eyes but I would like to change them to blue. And contacts are too much trouble. Can you change your eye color by surgery?

2006-11-20 18:17:55 · 9 answers · asked by Anonymous in Medicine

2006-11-20 18:17:31 · 9 answers · asked by mrbagobeans 1 in Weather

I'm thinking if the moon really is made of cheese, it must be stinky!

2006-11-20 18:15:38 · 12 answers · asked by Anonymous in Astronomy & Space

√ I have been pasting it from somewhere else.

2006-11-20 18:14:18 · 42 answers · asked by Roadrunner 3 in Mathematics

when area is increase ,the volume get increase so pressure should decrease.because velocity increases

2006-11-20 18:14:12 · 8 answers · asked by Anonymous in Engineering

It's been asked before...but I just had to do it again!

2006-11-20 18:11:47 · 3 answers · asked by Anonymous in Zoology

There are 7 continents; Africa, Antarctica, Asia, Australia, Europe, North America, and South America.

Is there any reason for all the A's???

2006-11-20 18:07:26 · 8 answers · asked by whitnvest 1 in Geography

2006-11-20 18:06:17 · 6 answers · asked by evelynsmitheve 1 in Medicine

i m in 12th standard want to persuie engg. edu.

2006-11-20 18:05:44 · 13 answers · asked by Anonymous in Engineering

Besides their uses, how they form, their pros and cons. what can i still mention about fossil fuels? what other facts make them more interesting?

2006-11-20 18:03:23 · 3 answers · asked by generalelite 2 in Earth Sciences & Geology

I know of a car being hit by one.

2006-11-20 18:02:58 · 9 answers · asked by Anonymous in Astronomy & Space

a man of the top of the building 100m height throws a stone vertically upward with an initial velocity 6.0m/s.how long after it is thrown willit take the stone to hit the ground?show ur solution?

2006-11-20 17:57:55 · 2 answers · asked by Anonymous in Physics