Science & Mathematics - 13 July 2007

is it now illegal to make things out of naugahyde?

Anyone have a picture of one of those beasts?

2007-07-13 15:57:24 · 7 answers · asked by songndance1999 4 in Other - Science

Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator.

((1)/2z^2)) , ((2)/(3z^5))

a. 3z^3/6z^5 , 2/6z^5
b. 3z^3/6z^5 , 4/6z^5
c. none of these

2007-07-13 15:54:41 · 4 answers · asked by Monkey Kick 1 in Mathematics

I was wondering what the the heaviest type of metal is? I mean like the metal you can use to build stuff not music

2007-07-13 15:48:16 · 9 answers · asked by Anonymous in Chemistry

2x -2y = -10, y= -2x + 17

I got
2x -2(-2x + 17) = -10
2x -4x + 38 = -10

this is far as I got,,can somebody advise me on this

2007-07-13 15:38:29 · 9 answers · asked by Anonymous in Mathematics

i understand its lightwaves reflecting off molecules in the air that reflect the color blue when you look at the sky...but why when i see photos of earth from space do you see land and continents? if it is light reflecting than shouldnt you see nothing but solid blue when looking down from above?

2007-07-13 15:35:13 · 4 answers · asked by maizee_713 2 in Earth Sciences & Geology

2.After a potluck dinner, there is 1/6 of a pumpkin pie and 1/3 of an apple pie left over. How much pie was left over in all?
3.Which of these numbers has the leasr value?
a. 189.62, b. 198.26, c.198.62, d. 189.26
4.Which number is a factor of 26? a. 2, b. 3, c.6, d. 16
5. Maria baked 24 cookies. She gave 4 to her neighbor. What fraction of her cookies did she give to her neighbor? Give your answer in the simpliest form.

2007-07-13 15:33:50 · 2 answers · asked by rosemariestewart64 1 in Mathematics

please tell me if it's true of falso and why it is. all help is greatly appreciated

1. is it true that to right-angled triangles with equal length hypotenuses are similar?

2. is it true that two right-angled triangles in which one side is twice another side are similar?

3. is it true that two rectagles whose triangles meet at 30 degress are similar?

4. is it true that two rectangles whose diagonals have length 6 cm are similar?

5. is it true that two rhombuses are similar?

6. is it true that two rhombuses with vertex angles 50 degrees and 130 degrees are similar?

2007-07-13 15:26:01 · 2 answers · asked by Anonymous in Mathematics

2007-07-13 15:22:58 · 4 answers · asked by Anonymous in Engineering

2007-07-13 15:21:48 · 13 answers · asked by sandi l 1 in Weather

1. solve for X in the following;
8^x = 32768

2. solvw for the approximate value of x in the following;
log x = 3

3. find the approximate value of X in the following
2 log x = log 8

4. solve for X
2^3x = 10

5.solve for X
3^x = 27

6. what is the value of X in the following;
Ln x = 4

7. find the value of X to two decimal places in the following;
Ln x = 3

8. solve for X
(log x)^3 = log x^3

2007-07-13 15:20:23 · 3 answers · asked by AJames 1 in Mathematics

I just got finished watching the exorcist: the heredity, and I was wondering. I heard that locus bugs only come out every 7 years, and ever sicne that movie I have been terrified of them. Does anyone know the next date for the locus bugs to come out?

2007-07-13 15:20:03 · 4 answers · asked by Anonymous in Biology

who can do it?

2007-07-13 15:13:19 · 7 answers · asked by tantarot 1 in Other - Science

3a/7 = -2/5
explanation would be helpful.
thanks

2007-07-13 15:07:24 · 3 answers · asked by Anonymous in Mathematics

4/x = 5/7

2007-07-13 15:06:30 · 3 answers · asked by Anonymous in Mathematics

2x - 2y = -4
-2x + 3y = 12

2007-07-13 15:06:04 · 6 answers · asked by *05* 1 in Mathematics

I just had an x-ray last June 13, when is the earliest time that I can have my next one?

2007-07-13 14:58:18 · 4 answers · asked by botheredandconfused 1 in Medicine

2007-07-13 14:53:32 · 2 answers · asked by Anonymous in Zoology

Give an example?

2007-07-13 14:42:28 · 6 answers · asked by Gypsy Gal 6 in Physics

If the output arm is 1 meter long, how long does the input arm need to be?

1)
0.3 meters
2)
3 meters
3)
4 meters
4)
6 meters

2007-07-13 14:41:39 · 3 answers · asked by Anonymous in Engineering

I'm having trouble solving this question, any help would be appreciated:

a) Two parallel plates having charges of equal magnitude but opposite sign are separated by 10.1 cm. Each plate has a surface charge density of 39.9 nC/ m2. A proton is released from rest at the positive plate. Determine the potential difference between the plates.
b) What is the energy of the proton when it reaches the negative plate.
c) What is the speed of the proton just before it strikes the negative plate.

If you someone could give me a step by step of how to solve this I'd really apprecaite it.

Thanks

2007-07-13 14:39:06 · 3 answers · asked by rolo_cakes 2 in Physics

I've been on the high plains of experience and on mountain tops - away from city lights. Where is the best place to view the bright stars?

2007-07-13 14:32:08 · 17 answers · asked by RT 6 in Astronomy & Space

1. solve for X in the following;
8^x = 32768

2. solvw for the approximate value of x in the following;
log x = 3

3. find the approximate value of X in the following
2 log x = log 8

4. solve for X
2^3x = 10

5.solve for X
3^x = 27

6. what is the value of X in the following;
Ln x = 4

7. find the value of X to two decimal places in the following;
Ln x = 3

8. solve for X
(log x)^3 = log x^3

2007-07-13 14:27:33 · 2 answers · asked by AJames 1 in Mathematics

A 20kg object was dragged along a 5 meter distance.The force exerted was 50 N
a.how much work is done?
b.how much work is needed to lift the object 5 m.?
c.compare the work done in both cases.

2007-07-13 14:20:28 · 1 answers · asked by Boxster 2 in Physics

2007-07-13 14:17:13 · 13 answers · asked by BARBARA H 2 in Earth Sciences & Geology

2007-07-13 14:12:24 · 9 answers · asked by michael_wright_x 1 in Mathematics

Please go to my 360 profile to look at this plant. Every year it gets these long thin spears. What are they ?

2007-07-13 14:09:36 · 1 answers · asked by Anonymous in Botany

2007-07-13 14:05:29 · 4 answers · asked by Rey P 1 in Zoology

My report card was really bad, i really need to improve :[

2007-07-13 13:59:50 · 8 answers · asked by Anonymous in Mathematics

I need to make an electromagnet but soft iron rod seems pretty rare. I have steel rod in abundance, so I was just wondering if this would work instead?

2007-07-13 13:44:20 · 7 answers · asked by Anonymous in Engineering

Hey, I lost the screw cap to it, now it doesn't work (well, it does when i use aluminum foil but i gotta hold it in place). I was wondering where could I get a replacement cap (if one is available or if anyone has a bright and creative idea on how make a makeshift one

2007-07-13 13:40:23 · 4 answers · asked by blazinblazn08 2 in Engineering