Science & Mathematics - 7 September 2006

for example in a bicycle pump

2006-09-07 03:28:04 · 17 answers · asked by Geoff S 1 in Physics

Whole process is not clear for me. so please explain me

2006-09-07 03:24:11 · 11 answers · asked by sara_swathi m 1 in Physics

1.48 g of an organic acid reacts completely with 25.0 cm^3 of 1.20 mol/dm^3 of aqueous sodium hydroxide.
Which of the following is probably the organic acid?

a) CH3COOH
b) CH2(COOH)2
c) CH(COOH)3
d) C(COOH)4

I need urgent help. my teacher couldn't help me and I can't find anything in the internet. Please do help, and do explain.

Thanks.

2006-09-07 03:23:29 · 4 answers · asked by LIFEisSHORT 1 in Chemistry

what is the difference between magma and lava??

Please explain at it with picture ( coz i am going to discuss it with children)

2006-09-07 03:23:06 · 10 answers · asked by Anonymous in Biology

We are having a debate at school about which continent would be considered the most Northern. Can you help, and provide the evidence?

2006-09-07 03:22:57 · 10 answers · asked by krahnicals 1 in Geography

2006-09-07 03:19:16 · 5 answers · asked by Anonymous in Chemistry

2006-09-07 03:18:13 · 4 answers · asked by Anonymous in Medicine

2006-09-07 03:17:11 · 11 answers · asked by Anonymous in Physics

2006-09-07 03:15:12 · 14 answers · asked by Anonymous in Physics

Do other planets spin/rotate as the earth?

2006-09-07 03:14:09 · 7 answers · asked by moonface 2 in Astronomy & Space

Is it 0 or undetermined (and you would have to use LaHospital's (sp?))? thanks

2006-09-07 03:12:31 · 8 answers · asked by ivyeurasian 1 in Mathematics

I really can't get the big picture where is the coronary artery!

2006-09-07 03:11:58 · 10 answers · asked by paramount 1 in Biology

how often one should replace his/her contact lenses

2006-09-07 03:09:16 · 13 answers · asked by jayesh 1 in Medicine

2006-09-07 03:08:51 · 21 answers · asked by Anonymous in Astronomy & Space

A cow is warm blooded yet we have to keep it in the fridge.

2006-09-07 03:07:41 · 8 answers · asked by Anonymous in Zoology

Other than heat and electricity!!!

2006-09-07 03:03:18 · 5 answers · asked by saffy 2 in Physics

2006-09-07 02:59:02 · 21 answers · asked by The Mole 4 in Physics

Can anyone direct me to anything convincing... or at least something better than the dross I seem to be coming across...

2006-09-07 02:58:41 · 8 answers · asked by Servechilled 2 in Other - Science

1. The current in a circuit is inversely proportional to the resistance. The current is 20 amperes when the resistance is 5 ohms. What will the current be if the resistance is 16 ohms?

2. A truck leaves Cincinnati traveling east at 35 mph. One hour later, a car leaves Cincinnati also traveling east at 40mph. How far from Cincinnati will the car catch up with the truck?

3. A chemical supply company has a 30% sulfuric acid solution and a 70% sulfuric acid solution. How many liters of each should be used to obtain 100 liters of a 40% solution?

2006-09-07 02:53:42 · 10 answers · asked by Anonymous in Mathematics

advantages and disadvantages of chemical control of micro-organisms

2006-09-07 02:53:05 · 1 answers · asked by Anonymous in Chemistry

is it possible to dye mercury? how?

2006-09-07 02:52:52 · 3 answers · asked by ????? 2 in Chemistry

2006-09-07 02:51:04 · 6 answers · asked by dave_20385 2 in Physics

can anyone plzzzz describe the chemical principles invovled in the action of these two cleaners?(how they work but the chemical interactions)

2006-09-07 02:50:58 · 2 answers · asked by Anonymous in Chemistry

2006-09-07 02:50:45 · 8 answers · asked by Ickey J 1 in Medicine

There was an over-turned beetle on my kitchen floor. He was there the whole time we were having breakfast, then when I picked it up to toss it in the trash he woke up and started running.

2006-09-07 02:50:09 · 5 answers · asked by ŧťŠ4 in Biology

introduce a software to me.please
fuzzy system
mamdani fuzzy system

2006-09-07 02:49:34 · 1 answers · asked by hojat 1 in Engineering

It's the middle of the season, and there haven't been any hurricanes yet. Just one tropical storm.

And they were predicting such a horrible hurricane season. National Geographic even said: "Hurricanes: No End In Sight"

Yeah, right.

2006-09-07 02:48:53 · 10 answers · asked by Anonymous in Weather

2006-09-07 02:45:42 · 18 answers · asked by simon r 3 in Physics

2006-09-07 02:41:24 · 3 answers · asked by true_friend 1 in Engineering

How do the bits inside an exhaust pipe make it quieter?

2006-09-07 02:40:09 · 6 answers · asked by gogs 2 in Engineering