Science & Mathematics - 26 October 2006

What kind of plastic is a kettle made of and why? And where can i find details about it's manufacturing process?

2006-10-26 05:11:49 · 2 answers · asked by Anonymous in Engineering

As Salt concentration of seawater increases, boiling pt increases. however, vapour pressure decreases. how do we calculate the latent heat of evaporation?

2006-10-26 05:06:56 · 3 answers · asked by weiqiang c 1 in Physics

Some scientist say, A big astroid had hit Earth Billions of years ago, but the Astroid also contained bacteria's. Billion years later, from those bacteria's, here we are! So the bacteria's might be from other planet that already had life. Your opinion?

2006-10-26 05:05:39 · 16 answers · asked by Anonymous in Astronomy & Space

A bookcase is to be constructed. The height of the bookcase is 4 feet longer than the length of a shelf. If 20 feet of the lumber is available for the entire unit (including the shelves, but NOT the back of the bookcase), find the length and height of the unit.

2006-10-26 05:00:23 · 4 answers · asked by The Ultimate Answerer 3 in Mathematics

Hi..I just needed help with a math question below. If ur a type of a person who is going to answer me by saying, "Do ur homework urself", then excuse me bcuz I know I can do this question myself. I just have my own reasons for asking ur help. Please help me by showing me the steps and explainin them so that i can understand better.

a) Prove that if x^3 + mx + n is divisible by (x - k)^2, then (m / 3)^3 + (n / 2)^2 = 0.

b) Prove that if x^3 +mx + n and 3x^2 + m have a common factor (x - k) then 4m^3 + 27n^2 = 0.


In addition, Im extremely sorry if i sounded rude above. But i promise I will appreciate ur help by giving 10 points surely to anyone who answers my question in such a way that I understand the solution properly (although there is no solution as it involves proving). Thanks in advance, guys!!

2006-10-26 05:00:19 · 6 answers · asked by Anonymous in Mathematics

Okay, not "Aliens", but bacteria's. Do you think it exist? Scientist, found evidence bacteria under miles of thick ice in Antertica, and scientist say there might be bacteria in Europa, you agree? why or why not? whats your opinion?

2006-10-26 05:00:07 · 5 answers · asked by Anonymous in Astronomy & Space

How u love it

2006-10-26 05:00:06 · 9 answers · asked by good answers bad questions 2 in Physics

prove
cos 3t + sin 3t = (cos t - sin t)(1+2 sin 2t)

2006-10-26 04:59:40 · 2 answers · asked by sumone^^ 3 in Mathematics

2006-10-26 04:49:54 · 6 answers · asked by Anonymous in Mathematics

2006-10-26 04:48:32 · 6 answers · asked by fresh p 2 in Mathematics

2006-10-26 04:48:30 · 1 answers · asked by Non P 1 in Physics

2006-10-26 04:47:45 · 7 answers · asked by mini_dilligaf 1 in Mathematics

If yes, how do they stand up?

2006-10-26 04:46:38 · 18 answers · asked by blahalujza 1 in Zoology

im checking my answers with u

2006-10-26 04:45:43 · 7 answers · asked by Anonymous in Biology

2006-10-26 04:44:32 · 15 answers · asked by KANDE RAGHU V 1 in Astronomy & Space

Ok so the question is Can plants grow in a dark environment with only a small amount of sunlight? This is my son's project. So we did the project. We planted 4 bean seeds in each pot with soil, put 2 pots in boxes with a small hole at the top and put the 3rd plant in the light. A&B (the plants in boxes grew faster) and C (the one in the sun ) grew a little slower, but was definetly in better condition. ( I know this is because clorophyll absorbes energy from the sun which gives the plants it's green color). The other 2 in the boxes grew taller (trying to reach for the light and climbed out of the top of the box) although the stems are pale. So the question is can the plants still survive with only a small amount of light or will they eventually die? Please help asap. This is due tomorrow.

2006-10-26 04:44:10 · 9 answers · asked by ~jenjen~ 5 in Other - Science

what chemical substance can be contained in a vacuum but is not as extreme as dry ice

2006-10-26 04:44:01 · 1 answers · asked by Tilly 5 in Chemistry

Compute the acceleration of a block sliding down a 36 degree incline, the coefficient of sliding friction being 0.17.

2006-10-26 04:43:37 · 5 answers · asked by caaa37 1 in Physics

what is present in the centre of a galaxy of very big size?

2006-10-26 04:43:09 · 5 answers · asked by KANDE RAGHU V 1 in Astronomy & Space

If there is an Outer Universe, then what is considered the Inner Universe, is it earth.... no then what?

2006-10-26 04:40:37 · 2 answers · asked by Paris, je t'aime 5 in Astronomy & Space

Solve for x. Show ALL work:

10x + 15 = 5x - 10

2006-10-26 04:40:29 · 14 answers · asked by kate c 1 in Mathematics

what do you think??

2006-10-26 04:39:43 · 14 answers · asked by Anonymous in Other - Science

from the top of a hill that is 26.0 m high. What is the translational speed of the tire when it reaches the bottom of the hill in units of m/s? Assume acceleration of gravity is 9.81 m/s^2 and that the tire is a hoop with I = mr^2.

2006-10-26 04:38:24 · 1 answers · asked by Dee 4 in Physics

When you lift a bowling ball with a force of 82N, its upward acceleration is a. If you lift it with a force of 92N, the ball's acceleration is 2a. Find (a) the weight of the bowling ball and (b) the acceleration a.

2006-10-26 04:37:09 · 3 answers · asked by Anonymous in Physics

2006-10-26 04:34:10 · 4 answers · asked by Anonymous in Biology

Solve for y. Show ALL work:

12y + 4 = 8y - 12

2006-10-26 04:33:00 · 14 answers · asked by cak 1 in Mathematics

2006-10-26 04:32:31 · 14 answers · asked by Anonymous in Astronomy & Space

if i took a sample of washing soda and placed it in a beaker and exposed it to the air, as the time of exposure to air increases, what happends to the weight of the contents in the beaker??
would it:

increase?

decrease?

or remain the same.

2006-10-26 04:31:49 · 5 answers · asked by K&E4life 1 in Chemistry

Solve for z. Show ALL work:

7z - 18 = -2z + 18

2006-10-26 04:31:37 · 10 answers · asked by cak 1 in Mathematics

After Linda Kodama is seated in a restaurant, she realizes that she has only $30. From this $30 she must pay a 7% tax and she wishes to leave a 15% tip. What is the maximum price for a meal that she can afford to pay?

2006-10-26 04:30:53 · 7 answers · asked by chokala 1 in Mathematics