Science & Mathematics - 25 September 2007

Is there a way to purify radioactive water?

2007-09-25 08:11:42 · 2 answers · asked by FSU53 1 in Other - Science

2007-09-25 08:07:49 · 9 answers · asked by Anonymous in Physics

So far I made it 1/2y=-x

Do I multiply the -x by the denominator of 1/2y? That would give me y=-2x/1 and my slope would be -2 over 1. Is that right? The only problem there seems to be no y intercept so I am a bit confused.

2007-09-25 08:06:20 · 9 answers · asked by Nicholas L 1 in Mathematics

which dump their wastes into the ocean.............

2007-09-25 08:06:01 · 3 answers · asked by Indy :-) 2 in Other - Science

2007-09-25 08:05:32 · 4 answers · asked by Hollister <3 1 in Zoology

2007-09-25 08:03:24 · 7 answers · asked by Anonymous in Physics

Could a plane fly in a vacuum and could a rocket take off in a vacuum

2007-09-25 08:02:09 · 2 answers · asked by Anonymous in Physics

Chemistry

2007-09-25 08:00:23 · 1 answers · asked by sunnydaze34509xoxo 2 in Chemistry

Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied,retarding the upward motion of m1. If m1=6.4 kg and m2=8.21 kg, what value of f will reduce the acceleration of the system by 50%?

2007-09-25 07:55:38 · 1 answers · asked by snow200098 2 in Physics

What volume of a 0.986 M solution of NaOh must be added to 26.5 ml of 0.581 M hcl to completely neutralize the acid
How many moles of NaOh are needed for the neutralization?

2007-09-25 07:53:17 · 3 answers · asked by stranger 1 in Chemistry

theater tickets are $8 for general admission and $5 for students. During one evening, 240 tickets were sold, and the receipts were $1680. How many of each type of ticket was sold?

need help with this one please!! thanks

2007-09-25 07:52:10 · 8 answers · asked by Anonymous in Mathematics

2007-09-25 07:49:49 · 16 answers · asked by Anonymous in Biology

2007-09-25 07:42:47 · 8 answers · asked by Anonymous in Physics

2007-09-25 07:41:24 · 5 answers · asked by Anonymous in Physics

2007-09-25 07:39:04 · 5 answers · asked by Anonymous in Zoology

wherever you are, and where are you?? It's 2:37pm here in Georgia. Just thought it would be interesting to know, since Max just posted a question asking about the full moon!

~ Star if you answer ~

2007-09-25 07:38:38 · 15 answers · asked by buckshotbullies 3 in Geography

2007-09-25 07:37:52 · 7 answers · asked by Anonymous in Physics

2007-09-25 07:36:50 · 5 answers · asked by Anonymous in Mathematics

I'm currently studying A-Level maths just started and I was wondering anyone who already done it or is still doing has any suggestions for any books which could possibly help me to understand topics better, more in-depth explanation.

In GCSE i studied Intermediate Maths and got a B highest grade and since i didn't study for the Higher paper things that I'm learning now in A-level are new to me well majority.

For the first year, AS I'm doing C1, C2 and D1 so Core Mathematics 1 and 2 and than Decision Making. I know there are probably 100s of books out there to help with a-level maths but i was wondering anyone who has any good suggestions that they might of used some books.

Thanks in advance

2007-09-25 07:34:51 · 4 answers · asked by M4R10 2 in Mathematics

a person who designs a map is called

2007-09-25 07:33:29 · 26 answers · asked by Jacklyn G 2 in Geography

How do you isolate for x? Everything I have tried results in one of the x variables being part of a trig function. (I am trying to find the inverse of this function, so if it is not possible to isolate for x, how do you find the inverse?

2007-09-25 07:29:49 · 2 answers · asked by John V 1 in Mathematics

please help

2007-09-25 07:29:48 · 8 answers · asked by snsnsn 1 in Mathematics

please help

2007-09-25 07:28:34 · 6 answers · asked by snsnsn 1 in Mathematics

2007-09-25 07:27:20 · 6 answers · asked by Zinchik 1 in Physics

(j) Present an explanation that accounts for differences in the evaporation rate in the two ecosystems, meadow and a city park.
PLZZZZZZZZ PPL NEED HELP

2007-09-25 07:26:06 · 1 answers · asked by Anonymous in Earth Sciences & Geology

I am CORGI reg but only just qualified I have been in a house which needs a new boiler fitting but the house is that old the gas pipe is lead should I just take all this out and replace with copper or just go from lead to copper by the boiler with a leadloc Thanks

2007-09-25 07:18:40 · 5 answers · asked by Anonymous in Engineering

2007-09-25 07:11:20 · 6 answers · asked by mophead1985 2 in Mathematics

solve
1. the price of a tv is 780 this includes VAT at 20 % find thre prie before VAT is added........ say 780 x 20% = 624 but the ANS is 650

2007-09-25 07:10:05 · 5 answers · asked by Anonymous in Mathematics

alright, here's my question

A----------------------------------- B

person a is 10,000 light years away from person b. person a sends a signal to person b that reaches him instantly. why is this not possible?

2007-09-25 06:57:56 · 22 answers · asked by fleabis 2 in Astronomy & Space

i need to show how I get to answer without a calculator

2007-09-25 06:55:26 · 6 answers · asked by Anonymous in Mathematics