Science & Mathematics - 19 October 2007

A 125-g mass is placed on one pan of a balance, at a point 24 cm from the support of the balance. What is the magnitude of the torque about the support exerted by the mass?

2007-10-19 06:05:33 · 1 answers · asked by Anonymous in Physics

34, 38, and 39. You cannot combine numbers like 12+34=36. Each number is used by itself. I figured out all 1-40, except these 3. Thanks. Can only use +, - , *, and /.

2007-10-19 06:04:15 · 5 answers · asked by Anonymous in Mathematics

please help

2007-10-19 06:03:34 · 8 answers · asked by mouser 1 in Mathematics

A centrifuge has a rotational inertia of 7.24 10-3 kg ·m2. How much energy must be supplied to bring it from rest to 419 rad/s?

2007-10-19 06:02:27 · 2 answers · asked by Anonymous in Physics

Just wondering.....

2007-10-19 06:02:10 · 20 answers · asked by Dave 6 in Astronomy & Space

Find two consecutive integers such that the sum of 7 times the first integer and 3 times second integer is 103?

Two sonsecutuve integers that equal 103 is 51 and 52, I know that part. I have played with this question for way too long. Help?

2007-10-19 06:01:29 · 10 answers · asked by jaeelarr 1 in Mathematics

2p-5q=5
3p-2q=-9

many thanks to anyone who can help x

2007-10-19 06:01:18 · 14 answers · asked by marie c 1 in Mathematics

Like a virus that makes you smarter... I would love to get my brains f*cked in. Oh how this planet could use a "smart" plague...

2007-10-19 06:00:15 · 11 answers · asked by Anonymous in Biology

2007-10-19 05:59:03 · 9 answers · asked by Autumn 1 in Astronomy & Space

what's the result of it? my teacher said that it 's 0 and wants us to prove it.
note: zero and infinit are limit ones

2007-10-19 05:56:07 · 8 answers · asked by amir 2 in Mathematics

help?

2007-10-19 05:55:51 · 2 answers · asked by mouser 1 in Mathematics

2007-10-19 05:52:35 · 2 answers · asked by tchoxi2000 1 in Mathematics

Just wondering about a couple prefixes in my homework. There is one referring to sec sec-butyl chloride. there is also t-amyl iodide and n-butyl bromide. Just wondering what those prefixes mean, I tried looking them up in the book but really didn't see anything. If someone could please answer what each of those prefixes mean it would be greatly appreciated.

2007-10-19 05:52:24 · 3 answers · asked by burgler09 5 in Chemistry

2007-10-19 05:50:03 · 3 answers · asked by tchoxi2000 1 in Mathematics

When making agar plates, why do you have to wait until the liquid agar cools to 50 degrees before pouring into the petri dish?

2007-10-19 05:43:42 · 1 answers · asked by lilbit 2 in Biology

or less then four days .Maryjane is in sude of my system so how do i clean it out

2007-10-19 05:40:22 · 4 answers · asked by Anonymous in Medicine

2007-10-19 05:33:55 · 2 answers · asked by LuvPnk 1 in Astronomy & Space

Which polar caps, northern or southern, is thicker and more extensive in the winter...What two reasons cause more extensive size of the polar cap?

2007-10-19 05:33:10 · 9 answers · asked by ted 1 in Astronomy & Space

2007-10-19 05:31:02 · 2 answers · asked by Bezoar 2 in Chemistry

i bought a ficus nightingale and i am wondering what to do with it. it has six trunks each easily seperated into 6 seperated trees. any suggestions.

2007-10-19 05:30:47 · 1 answers · asked by ? 2 in Botany

2007-10-19 05:28:41 · 6 answers · asked by Anonymous in Mathematics

7. Which elements did Mendeleev leave spaces for in his 1st periodic table:
a) aluminum & phosphorus
b) aluminum & germanium
c) silicon & arsenic
d) gallium & germanium
e) gallium & aluminum

2007-10-19 05:28:22 · 4 answers · asked by Rachel x0x Baby 1 in Chemistry

can you give me the website you got it from

2007-10-19 05:25:30 · 7 answers · asked by papi17 2 in Earth Sciences & Geology

that has lost most or all of its ability to photosynthesize and has taken to stealing energy from certain tree roots (a saprophyte i.e.). The Indian Pipes (all species and varieties of which are classified as endangered) but are not too uncommon in the moister old growth areas of the Appalachian region. Now here's the tough one? What common flowering shrub that is ubiquitous in the Eastern USA, and relatives also grow in the Himalayas as well, is its closest relative? And what common Eastern tree renowned for its crimson or blood red leaves in the fall is also in the same family as the humble little Indian Pipes?

2007-10-19 05:25:21 · 2 answers · asked by Anonymous in Botany

2007-10-19 05:23:13 · 1 answers · asked by Anonymous in Chemistry

2007-10-19 05:20:56 · 1 answers · asked by VILAS S 1 in Zoology

I've been prescribed Zithromax for 5 days for tonsillitis and it's working I know and nothings going wrong. I just want to know if there are any side effects of the antibiotic Zithromax?

2007-10-19 05:19:27 · 2 answers · asked by Servant of God! Live 4 God!!!! 3 in Medicine

2007-10-19 05:18:42 · 10 answers · asked by LuvPnk 1 in Astronomy & Space

2007-10-19 05:18:07 · 5 answers · asked by Radhesyam N 1 in Mathematics

Is this possible? What will I need to do? I really like this idea for my science experiment but I don't know where to start.

2007-10-19 05:13:24 · 1 answers · asked by Dimples 5 in Biology