Science & Mathematics - 13 February 2007

this applies to the south of the UK

2007-02-13 23:59:58 · 11 answers · asked by gaviscon 4 in Weather

My year 5 class want to know why colours fade when left in sunlight. can anyone give a simple explanation?

2007-02-13 23:58:30 · 7 answers · asked by Anonymous in Physics

and if Nasa was able to collect earth's reflection on the mirror, then could we see the actions that took place on earth during those 100 years???

2007-02-13 23:51:22 · 7 answers · asked by Stream 1 in Astronomy & Space

In a right angled triangle the hypotenuse is twice as long as one of the right side forming the right angle. The remaining side is 80mm long. Find the length of the hypotenuse

2007-02-13 23:50:17 · 7 answers · asked by MoLeY 1 in Mathematics

We tend to look and seek to understand the universe in 2 ways: in a 3-dimensional matrix on the terrestrial world, and in a 2-dimensional matrix outside the solar system enclosing our planets, but using our ideas of space and time. It only seems correct to assume that there may be some other active dimension not available to the faculties of reason and logic to udevelop a n acceptable explanation of the totality of our conceptual knowledge. Please think positively and try to offer helpful comments and also understand that I am not seeking a mystic answer to this enquiry. Many thanks.

2007-02-13 23:48:50 · 3 answers · asked by polymath 1 3 in Physics

2007-02-13 23:47:29 · 4 answers · asked by paper moose 2 in Botany

2007-02-13 23:46:04 · 5 answers · asked by Ron T 1 in Mathematics

2007-02-13 23:45:58 · 11 answers · asked by Anonymous in Weather

2007-02-13 23:42:22 · 3 answers · asked by jay s 1 in Physics

We know that the standard equation of a circle is x^2+y^2=r^2, now my question is this-Is it possible to get the radius of the circle given the equation of the line from the origin P(0,0) to a certain point?How will you do this?

2007-02-13 23:34:16 · 4 answers · asked by p319 1 in Mathematics

2007-02-13 23:32:50 · 5 answers · asked by brownie 2 in Biology

2007-02-13 23:31:37 · 8 answers · asked by abo_saleh 1 in Astronomy & Space

Why is it that when we try to get a pitcher of water from a water dispenser, the water usually makes the sound "bluugggee", and I see some bubbles going up?Why is this so?

2007-02-13 23:31:25 · 2 answers · asked by p319 1 in Physics

2007-02-13 23:30:39 · 7 answers · asked by shannon 1 in Biology

2007-02-13 23:30:33 · 4 answers · asked by muppet 1 in Engineering

Please answer this question..

2007-02-13 23:29:57 · 2 answers · asked by p!nky_u 1 in Engineering

2007-02-13 23:27:50 · 2 answers · asked by amazing_sweet_angel 1 in Chemistry

2007-02-13 23:26:53 · 14 answers · asked by amazing_sweet_angel 1 in Chemistry

2007-02-13 23:25:37 · 1 answers · asked by amazing_sweet_angel 1 in Chemistry

2007-02-13 23:25:25 · 1 answers · asked by crazymexican09@verizon.net 1 in Mathematics

2007-02-13 23:23:59 · 11 answers · asked by wf 1 in Astronomy & Space

2007-02-13 23:17:06 · 13 answers · asked by Anonymous in Zoology

Good Luck.
PS: The first ? might be -2.Not Sure

EXPLAIN

2007-02-13 23:14:01 · 13 answers · asked by Anonymous in Other - Science

2007-02-13 23:04:28 · 8 answers · asked by [Class-X] .~'aLex'~. 2 in Earth Sciences & Geology

2007-02-13 23:02:04 · 2 answers · asked by Mark N 2 in Other - Alternative

7x - 4y = 26
y= x - 5

2007-02-13 23:00:36 · 6 answers · asked by darliniki75 1 in Mathematics

2007-02-13 22:57:11 · 6 answers · asked by ZHENHUA L 1 in Biology

if I couple a one HP. motor to to a magnetic brake M/C, and measure the current and temperature of the motor to prove that 746 watts are being consumed. where does the energy go! I made a 8 pole rotor attached to a motor shaft and positioned a stator with 8 poles alternating polarity " 1mm. gap accross the rotor and there was no temperature rise in the poles of the permenant magnetics in fact they were slightly cooler due to air flow. do we write this off because of "magnetic mystery" if it is because there is no friction, it is there in slip when an electric motor requires torque

2007-02-13 22:54:34 · 4 answers · asked by Anonymous in Physics

2007-02-13 22:52:54 · 4 answers · asked by gauru 1 in Mathematics

I have been using Dermovate scalp application for my psoriasis for many years by now and this is the only medication that seems to be working on my condition. I only apply it when redness and itchness occur. I have learned lately that using this type of medication which contains steroids may have serious side effects such as the effect on normal production of steroids in the body. What would that exactly mean? What are the symptoms in such cases? Does it have anything to do with methabolism or overweight issues?

2007-02-13 22:51:08 · 3 answers · asked by Isi 1 in Medicine