Science & Mathematics - 18 February 2007

2007-02-18 01:21:19 · 3 answers · asked by Anonymous in Physics

What are some common uses for Magnets in everyday life?

2007-02-18 01:18:53 · 15 answers · asked by ThisMan 3 in Engineering

one number is four time as large as another number. the sum of thier reciprocal is 1/2. what is the sum of the two numbers?

2007-02-18 01:13:15 · 5 answers · asked by KENT LYROLD G 1 in Mathematics

2007-02-18 01:03:43 · 9 answers · asked by brinson 1 in Mathematics

I am writing this article about astronauts and gravity and I think it would be great if i get a pic of an astronaut jumping/hopping on the moon.

2007-02-18 01:02:25 · 3 answers · asked by Joey 2 in Astronomy & Space

2007-02-18 01:01:58 · 6 answers · asked by brinson 1 in Mathematics

Suppose d != 1 and d = gcd(m,r)

so there exists s and t such that

ds = m and dt = r.

gcd ((m/d), (r/d)) = 1.
so
gcd (s, t)=1

okay.

now my question is

is gcd (s, t) = (1/d)gcd(m,r)

?


proof?

2007-02-18 01:00:39 · 2 answers · asked by Napper 2 in Mathematics

To be more specific if a patient takes 0.5mg of clonezepam what is the half-life.And when he takes 0.25mg of clonezepam what is the halflife.

Also when he takes 1mg,2mg,etc what is the half life.

It would also help if i can get a formula that can give me the relation between old halflife & new halflife when the dose is changed.

2007-02-18 01:00:35 · 2 answers · asked by neurocom 2 in Chemistry

2007-02-18 01:00:19 · 2 answers · asked by brinson 1 in Mathematics

I couldnt figure out the uses for these elements...
Li, B, Si, C, F, Al, Ca, P

2007-02-18 01:00:10 · 2 answers · asked by okiron 1 in Chemistry

To be more specific if a patient takes 0.5mg of clonezepam what is the half-life.And when he takes 0.25mg of clonezepam what is the halflife.

Also when he takes 1mg,2mg,etc what is the half life.

It would also help if i can get a formula that can give me the relation between old halflife & new halflife when the dose is changed.

2007-02-18 00:59:19 · 4 answers · asked by neurocom 2 in Medicine

2007-02-18 00:56:20 · 1 answers · asked by brinson 1 in Mathematics

Anyone got any ideas of how to solve

2^x - x^2 = 0 ?

I already have the solutions...so dont just tell me them...i want methods

2007-02-18 00:53:30 · 1 answers · asked by Anonymous in Mathematics

2007-02-18 00:52:27 · 7 answers · asked by tunachunks199 1 in Other - Science

plz!

2007-02-18 00:49:18 · 5 answers · asked by mini_jimi_yooha 1 in Mathematics

how can i make a footscrub made of rose petals or fruits or vegtables?...

if you guys know how.. pls tell me cuz i really need it 4 my investigatory proj.

cuz thats the problem that is assigned to us...

please! please!please!please!please!please!please!please!

2007-02-18 00:49:03 · 4 answers · asked by therese e 1 in Botany

2007-02-18 00:48:15 · 8 answers · asked by melody 1 in Mathematics

Thanks for answering!

2007-02-18 00:45:34 · 4 answers · asked by Anonymous in Mathematics

(please be specific)

2007-02-18 00:43:53 · 1 answers · asked by : 1 in Zoology

an animals and plants

2007-02-18 00:43:28 · 2 answers · asked by Anonymous in Zoology

2007-02-18 00:42:54 · 8 answers · asked by tunachunks199 1 in Astronomy & Space

1) CH3CHC(CH3)CH2CH3
2) CH2CHC(CH3)CH2

Could someone please also explain what those brackets mean?? Thats where im getting stuck at the moment.

2007-02-18 00:41:07 · 5 answers · asked by Anonymous in Chemistry

Okay a balloon expands in the atmosphere around it right , so if space ;some say ; is still expanding , what is it expanding in......What is on the other side of space ? What happens if you were able to get to the edge of space . I dont think you can get to the edge and there be nothing on the other side , there has to be , a wall needs two sides . The edge of space cant bring you back to the first like some time warp can it . So what is past the edge of space .

2007-02-18 00:40:44 · 6 answers · asked by cm 1 in Astronomy & Space

in this formula:a = (10/9)(10^n - 1) - n

2007-02-18 00:36:54 · 6 answers · asked by Anonymous in Mathematics

2007-02-18 00:36:50 · 1 answers · asked by Neeraja Singh 3 in Engineering

52 kg box pushed 7 m acoss floor by force p whos magnitude is 163N... the force is parallel to the displacement of the box. the coefficient of kinetic friction is .25. determine the work done on box by each of 4 forces that act on box. Include proper plus or minus sign.


a/. applied force.
b. frictional force.
c. Normal force
d. gravity

I got all right except for frictional force how do you find this? why is it not juts the negative of applied force? thank you

2007-02-18 00:33:17 · 4 answers · asked by Anonymous in Physics

I saw this plant while out walking yesterday, in the Highlands of Scotland. It was in a wooded dark, wet area, it was growing flat along the ground spreading out in an uneven pattern, dark greenish grey on top and the underneath of the leaves were white with fleshy spines which seemed to attach it to the mossy ground beneath.

It might not be native as it was in an old overgrown Victorian estate and they introduced many non-native species to their gardens. I have never seen anything like it before and without a name it is proving difficult to searh for it online!!!!

2007-02-18 00:33:09 · 9 answers · asked by debz p 1 in Botany

anything may be cloth , paper ,garbageetc after burning more smoke comes

2007-02-18 00:32:43 · 4 answers · asked by **vinny** 2 in Other - Science

in india and USA

2007-02-18 00:32:10 · 13 answers · asked by M&M 1 in Chemistry

2007-02-18 00:31:52 · 5 answers · asked by melody 1 in Mathematics