Science & Mathematics - 15 February 2007

Please, if you can, tell how each type of plastic looks like.

2007-02-15 15:48:47 · 4 answers · asked by Anonymous in Physics

2007-02-15 15:48:45 · 4 answers · asked by daoudi2287 1 in Mathematics

constant rate. Explain clearly how you can measure 15 minutes.

2007-02-15 15:46:35 · 5 answers · asked by michielev 2 in Mathematics

2007-02-15 15:45:09 · 3 answers · asked by David D 1 in Zoology

Determine the maximum and minimum values of the following set of numbers.

2,-8, 1\2,-5\3,9\4,-7,-73\9

2007-02-15 15:44:42 · 2 answers · asked by Anonymous in Mathematics

tigers are my favorite animal and it would be a dream come true to be able to play with a baby one...or a midsize one

or any tiger

2007-02-15 15:44:42 · 4 answers · asked by xiphoid process 2 in Zoology

Encountered term in text book, couldn't understand what it meant.

2007-02-15 15:44:41 · 4 answers · asked by Sherlock Holmes 3 in Chemistry

200x100 beam -simply supported - uniformly distributed load-
what is the max load it can carry safely - can you show me the calculations or a web site that will help me with it ???

2007-02-15 15:43:32 · 4 answers · asked by sonuphone 1 in Engineering

You want to use an 8 in ´ 10 in sheet of paper to create a rectangular box without a top. To do this, you cut out a 1” ´ 1” square out of each corner and fold up the sides.

(a) What is the volume of your box?

(b) If you cut out an x” ´ x” square, what is the volume of your box?

(c) What values of x are possible (reasonable) in part (b)?

2007-02-15 15:42:55 · 6 answers · asked by elaineray69 1 in Mathematics

2007-02-15 15:42:43 · 1 answers · asked by Anonymous in Botany

Taking into account that the formula for the Haber Process is N2(g) + 3H2(g) → 2NH3(g).

Thank you in advance for the help.

2007-02-15 15:42:03 · 5 answers · asked by Random G 3 in Chemistry

How would you solve the [(square root of x-7)=(the square root of (x+5-2)]? I started out by squaring x-7 and FOILing the sq.rt. of x+5-2. From there I messed up trying to get the like-terms together and solving for.

2007-02-15 15:41:52 · 5 answers · asked by melanie s 2 in Mathematics

what is the sum a + b? Don't just say that this is not possible because I know it is, I just don't know how. Please explain your answers.

2007-02-15 15:41:28 · 4 answers · asked by michielev 2 in Mathematics

I need to know for a school project.

2007-02-15 15:41:08 · 4 answers · asked by Anonymous in Engineering

it should be easily available in market and apart from chlorination.

2007-02-15 15:40:55 · 3 answers · asked by madhavi 1 in Chemistry

The heating coil of a hot-water heater has a resistance of 20 and operates at 210 V. If electrical energy costs $0.080/kWh, what does it cost to raise 270 kg of water in the tank from 15°C to 72°C?

2007-02-15 15:39:53 · 2 answers · asked by Anonymous in Physics

How long does it take to heat 125 L of water from 24.7°C to 47.3°C, neglecting conduction and other losses?

2007-02-15 15:38:29 · 3 answers · asked by Anonymous in Physics

1232
2351
0113
1345

2007-02-15 15:37:13 · 2 answers · asked by navjot 1 in Mathematics

2007-02-15 15:35:21 · 3 answers · asked by «Juke» 1 in Earth Sciences & Geology

2^30(2 power 30) or 3^20(3 power 20) ....how it can be proved mathematically

2007-02-15 15:35:02 · 7 answers · asked by mattri 1 in Mathematics

2007-02-15 15:34:49 · 4 answers · asked by scottdauphin 1 in Physics

Priscilla is buying hot dogs, buns, and beans for a cookout. Hot dogs come in packages of 16 and cost $1.29. A can of beans cost $2.29 and will serve 6 people. There will be 56 people at the cookout. If each person eats 1 hot dog on a bun and 1 serving of beans, how much will Priscilla spend to buy enough food for everyone?

show all your work. Explain in words how you got you answer and why you took the steps you did to solve the problem.


Help me as soon as possible right now!!!! please

2007-02-15 15:34:02 · 3 answers · asked by ? 2 in Mathematics

i have a piece of metal that is silver in color and has a density of 3.4g/ml does anyone know what it is

2007-02-15 15:31:52 · 2 answers · asked by peggy s 1 in Chemistry

A rectangle has sides 10 and 8. Find the length of a diagonal. The answer is 2 radical 41. Can anyone give me an explanation as to why?


Thanks

2007-02-15 15:31:41 · 4 answers · asked by Anonymous in Mathematics

By what factor does [H+] change for each pH change?

a) 5.10 units
__________

b) 0.48 units
__________

2007-02-15 15:30:23 · 3 answers · asked by vntraderus88 1 in Chemistry

Most of Ohio heard a loud bang or boom, boom between 8pm and midnight last night!! The weather man says it was ice moving!! Then how did the whole state hear it? The talk radio stations have been going nuts!! I heard it myself, along with my daughter!!We both really would like answers, other than Ice. The media must think we are completely stupid! The whole state heard Ice fall at the same time!!! Over Hundreds of miles!!!

2007-02-15 15:29:49 · 7 answers · asked by jacah5 3 in Physics

2007-02-15 15:29:38 · 12 answers · asked by Stigmeister 2 in Geography

2007-02-15 15:29:29 · 2 answers · asked by zombiebreath 2 in Mathematics

i need to know the names of the males females and young of the following species:
goose
sheep
swine
whale
swan
rabbit
kangaroo
goat
lion
seal
(ex chicken is rooster hen and chick)

2007-02-15 15:28:30 · 4 answers · asked by Anonymous in Zoology

How do we integrate this

S= integral

S 1/x√x


How to take derivative of

1/(1+x^2)

2007-02-15 15:27:47 · 5 answers · asked by bluesky8 1 in Mathematics