Science & Mathematics - 16 October 2006

i need a lot of help because i don't understand this quite a lot but almost got it!

2006-10-16 16:08:42 · 4 answers · asked by Mickey 1 in Biology

Calculate the temperature change if a 58.2g sample of Pb absorbed the same amount of heat? Now I dont want the answer cause I want to work it out myself I just need to know how to set it up to get the right answer. I have atleast one example but no matter how many times I do it I never can get the same exact answer as the example...And its making me want to bang my head against the wall or taking this chem book and tossing it out the window..

2006-10-16 16:06:25 · 3 answers · asked by Precious Angel 2 in Chemistry

Tom has 1/3 the number of points that Bob has. How many points does Bob have?
Equation:_________________ x=
Bob has _____ points.


And.....

5 workers were absent today. This is 1/4 of all workers. How many workers are there?

Equation:_________________
There are ________ workers.

7x+2x=

9y+y=?


Please explain if you don't mind =]
Thank you.
z+2z=?
E+E+6=?

2006-10-16 16:05:15 · 8 answers · asked by kisser_up 1 in Mathematics

Parasaurolophus is a plant eatter and the Allosaurus is a meat eatter. Both are 30 to 36 feet long. Any thoughts? This is my sons homework assignment. Thats all his books says.
Please help

2006-10-16 16:01:59 · 5 answers · asked by jeanlovesharrypotter 1 in Zoology

__ / __ X __ + __X __ X __ / __+ __X__ = 100

2006-10-16 16:01:18 · 3 answers · asked by pip2368 2 in Mathematics

2006-10-16 16:01:07 · 3 answers · asked by marshall g 1 in Other - Science

I need help. There is this one thign where you read this paragraph and its all messed up. it says in it that your brain only procces words with the first and last letter so spellig doesn't count. Does the other letters count? can it be random letters. or does it have to be the letters in the word just mixed up? i'm confussed and i need it for homework! please help me and tell me which one it is.

2006-10-16 16:00:28 · 5 answers · asked by snowflake10012 2 in Other - Science

2006-10-16 16:00:14 · 2 answers · asked by Anonymous in Astronomy & Space

More reasoning problems

2006-10-16 15:56:48 · 4 answers · asked by Joyce G 1 in Mathematics

2006-10-16 15:56:28 · 4 answers · asked by gloria g 1 in Mathematics

Please be spacific

2006-10-16 15:55:40 · 2 answers · asked by mexicandiva94 1 in Mathematics

What is the pH of a 1 liter solution containing 0.150 mole of CH3COOH and .100 mole of HCL?

I can do them if they have a salt and a weak acid mixed together, I tried to do it the same way with a strong acid and a weak acid, but it didnt come out right. I know the answer is a pH of about 4.57 but I cant find out what steps I need to go through to get it.

2006-10-16 15:55:10 · 3 answers · asked by farxfromxlonelyx 1 in Chemistry

2006-10-16 15:51:49 · 2 answers · asked by Hoolahoop 1 in Physics

Reduce to the lowest terms

4x^2 /2x^9

2006-10-16 15:51:38 · 3 answers · asked by Anonymous in Mathematics

Say there's an advertisement for potato chips that are "healthier" because they're made with vegetable oil. What is true and what could be misleading about this commercial?


also, chemical bonds hold atoms together in molecules, and they hold ions together in ionic compounds. What "everyday" things are also bonded or held together?

10 points to whoever can help me out with these 2 questions. =]

2006-10-16 15:51:35 · 2 answers · asked by JoAnna 2 in Biology

An architect designs a rectangular garden. The garden is to be surrounded on all sides by a hedge, and a trelissed walkway runs between one pair of opposite sides. The hedge costs $98 per linear foot, and the walkway costs $127 per linear foot. The garden must have a toal of 1000 ft square. What dimensions should the garden have to minimize the cost?

2006-10-16 15:50:43 · 2 answers · asked by ? 1 in Mathematics

An 1900 kg car is moving to the right at a constant speed of 1.80 m/s.

(a) What is the net force on the car?
____N to the right

(b) What would be the net force on the car if it were moving to the left?
___N to the left

how do you solve this?

2006-10-16 15:49:03 · 5 answers · asked by tingerpoo 2 in Physics

2006-10-16 15:47:57 · 4 answers · asked by Kelsi S 2 in Chemistry

This is a reasoning puzzle.

2006-10-16 15:46:37 · 2 answers · asked by Joyce G 1 in Mathematics

Perform indicated operation-reduce-show your work
4/3n + 2/n+1 + 2/n^2+n

2006-10-16 15:45:14 · 3 answers · asked by Anonymous in Mathematics

Does the sun give off radiation? And also what kind of energy does the sun have Heat,Light and radation right? If you answer this thank you so much....you are really smart in my opinion.

2006-10-16 15:44:25 · 12 answers · asked by Anonymous in Astronomy & Space

Find the LCD

4/x-y , 5x/2y-2x

2006-10-16 15:40:41 · 2 answers · asked by Anonymous in Mathematics

i need 2 find out which diaper absorb the most water 4 a scince project so far i got nothin so i need y'all help

2006-10-16 15:40:04 · 2 answers · asked by foreverjaniqua 1 in Other - Science

I am still having problems with the division on my algebrator
can someone help?
I would like to see the steps.. it really helps

2006-10-16 15:39:42 · 4 answers · asked by Anonymous in Mathematics

deadline is tonight-homework

2006-10-16 15:39:31 · 3 answers · asked by CBLOVER 1 in Astronomy & Space

2006-10-16 15:39:14 · 6 answers · asked by crazybrunette1991 2 in Mathematics

an easy 5 points, easy answer...cmon..

2006-10-16 15:38:31 · 9 answers · asked by The Lonely Soul 1 in Earth Sciences & Geology

2006-10-16 15:37:59 · 1 answers · asked by cshnbnk 1 in Astronomy & Space

2006-10-16 15:37:52 · 4 answers · asked by bkgoal@sbcglobal.net 1 in Astronomy & Space

is there? and if so, is this fixed point theoretically at rest and every other thing is moving away from it? ( give me a fixed point in space and i will move the earth out of its orbit... )

2006-10-16 15:36:56 · 7 answers · asked by ixat02 2 in Physics