Science & Mathematics - 7 January 2007

2007-01-07 05:32:08 · 6 answers · asked by Sophia M 1 in Astronomy & Space

This term used for mechanical parts

2007-01-07 05:29:32 · 2 answers · asked by Saleem 1 in Engineering

i have been working on apples and how apples behave due to temperature. i searched on net and found so many things but mainly it's confusing and complicated. i only have a question: is there anyway to get apples to overripe faster?

2007-01-07 05:29:00 · 4 answers · asked by dat_nguyen160 2 in Botany

Please avoid going on religious tangents. I am not religious, i'm spiritual. And yes there's a big difference between the two.

2007-01-07 05:28:43 · 9 answers · asked by thundergnome 3 in Physics

i heard that when people die, they weigh i think 22 gram more. But whats the explanation behind it?

2007-01-07 05:27:08 · 34 answers · asked by zhang 2 in Biology

3x^2 - 7x+12 =0

Thank You to all that answer! :)

2007-01-07 05:24:26 · 8 answers · asked by Brad C 1 in Mathematics

2007-01-07 05:24:25 · 5 answers · asked by john g 1 in Biology

2007-01-07 05:24:12 · 4 answers · asked by COURTNEY G 2 in Zoology

2007-01-07 05:23:51 · 3 answers · asked by anuraag_mathur 1 in Physics

2007-01-07 05:23:43 · 4 answers · asked by blackstarmorning 1 in Mathematics

In a certain county, the average number of telephone calls per day between any two cities is directly proportional to th eproduct of their populations and inversely proportional to the square of the distance between them. Cities A and B are 25 miles apart and have populations of 10,000 and 5000, respectively. Telephone records show indicate an average of 2000 calls per day between the two cities. Estimate the average number of calls per day between city A and another city of 15,000 people that is 100 miles away.
How would I about solving this?

2007-01-07 05:22:23 · 4 answers · asked by bryon_barker 2 in Mathematics

And another thing, if there was a match, and we sloshed a bucket of petrol on it, there would be a massive explosion, no?

(forgive my stupidity)

2007-01-07 05:22:17 · 11 answers · asked by swordman 2 in Other - Science

1) xavier bought 5 red delicious apples and 4 granny smith apples at a cost of $4.81. Dean bought one of each of the two types at a cost of $1.08. find the cost for each kind of apple.

2) four single-sided disks and two double sided disks cost a total of $5.10. Two single sided and four double sided disks cost $5.40. Find the unit cost for each.

3) the perimeter of an isosceles triangle is 37inches. the lengths of the two equal legs are 6in less then 3 times the length of the base. Find the lengths of the three sides.

2007-01-07 05:21:42 · 5 answers · asked by love to help! 1 in Mathematics

2007-01-07 05:18:20 · 6 answers · asked by Salih D 1 in Mathematics

2007-01-07 05:18:02 · 6 answers · asked by Anonymous in Engineering

My friend needs help with chemistry, and i don't remember how to do it.

What is the total number of moles of atoms present in 1 mole of Ca3(PO4)2?

1. 13
2. 10
3. 8
4. 5

2007-01-07 05:17:36 · 2 answers · asked by battleship1720 2 in Chemistry

2007-01-07 05:16:39 · 7 answers · asked by jennifer f 1 in Chemistry

I need 3.2 VDC to power it, that is 2 AA batterys right? Thanks

2007-01-07 05:15:50 · 3 answers · asked by rindotheraven 2 in Physics

2007-01-07 05:14:45 · 3 answers · asked by Drummerboy987 1 in Chemistry

I have a problem which I cannot solve and wondered if anyone could help please?

Question:
The damage to road surfaces was proportional to the 4th power of the load. The load of a 44-ton lorry is about 15 times that of a car.
Calculate the ratio of the damage to road surfaces made by a 44-ton lorry and a car.
----------------------------
(I am aware that, when A is directly proportional to B we have A=kB where k is the constant of proportionality, which in our case would be A=kB^4).

Thank you for your suggestions. :)

2007-01-07 05:13:05 · 4 answers · asked by C H 1 in Mathematics

Thanks for your help.Tried myself and could not find out on line.

2007-01-07 05:13:01 · 2 answers · asked by Anonymous in Earth Sciences & Geology

im doing a project for my chemisty class and i cant find anywhere where it tells you what chemicals to you..... all i know is that you need a metal bowl.....please help me

2007-01-07 05:12:31 · 4 answers · asked by lostsoulofdreams19@sbcglobal.net 1 in Chemistry

2007-01-07 05:12:00 · 1 answers · asked by Stephen N 1 in Engineering

Could there be practical uses for propulsion?
What about if they were magtically connected-like a monorail, and it was in space so there wopuld be no resistance?

2007-01-07 05:10:45 · 2 answers · asked by shadow_teeth 1 in Physics

help*- let cars use less natural resources

Hundreds of magnets in cars helping to fuel cars


I hope this all makes sense. I tried my best

2007-01-07 05:06:48 · 4 answers · asked by dude guy 2 in Engineering

hey i am 14 and in top set (just so you know how hard/easy it is)
this is the question i am stuck on: (i'll type it all out)

9) The weights of eighty eggs were measured and the results are summarised in the following table.

____________________________________
--- weight (grams)--- I --- number of eggs ---I
---------------------------------------------------------I
50 60 70 80 90 ____________________________________I

1) write down the modal class. so is the modal class 70
so then it says 2) on the graph paper below, draw a grouped frequency diagram for the data.

so on the x axis i put the weight, right? and should i right 50
thanks?

2007-01-07 05:06:25 · 1 answers · asked by ... 4 in Mathematics

I need a pet name that is related to math. Any ideas?

2007-01-07 05:05:44 · 5 answers · asked by Anonymous in Mathematics

I know the answer, I need to know how it's done--I don't understand the answer at all!

Thanks.

2007-01-07 05:05:20 · 3 answers · asked by Erika S 4 in Mathematics

How do Amino Acids go to Protiens? Amino Acids to Proteins? Help...?

2007-01-07 05:05:15 · 4 answers · asked by rach 1 in Chemistry

explosive material

2007-01-07 05:05:15 · 6 answers · asked by Sam rad cliffe 1 in Chemistry