Science & Mathematics - 7 November 2006

Fill in the "_" with a (+,-,/, or x), each is only used once, but one is used twice.

2006-11-07 10:31:43 · 3 answers · asked by Vertigo 1 in Mathematics

It tail was 112,000,000 miles long.

2006-11-07 10:30:50 · 2 answers · asked by see 2 in Astronomy & Space

2006-11-07 10:30:15 · 12 answers · asked by hans j 1 in Zoology

2006-11-07 10:29:59 · 6 answers · asked by Anonymous in Chemistry

2006-11-07 10:29:32 · 4 answers · asked by socialchick416 1 in Physics

For each of the following, indicate whether or not a single replacement will occur.
single replacement reaction --> one element replaces another element in a compound
- i just want to check my answers against someone who knows what they're doing, i don't fully understand how to determine it even though i know what it is

1.) aluminum and hydrochloric acid
2.) silver and magnesium chloride
3.) chromium and lead (II) nitrate
4.) silver and gold (III) chloride
5.) chlorine and sodium iodine

2006-11-07 10:28:13 · 4 answers · asked by princesschristine91 1 in Chemistry

You push a 25kg wooden box across a wooden floor at a constant speed of 1 m/s. The kinetic coefficient of friction between the crate and floor is .20. How much force do you exert on the box?

I was out for a few days... and I have no idea how to find the answer.

2006-11-07 10:27:13 · 2 answers · asked by Jer G 3 in Physics

I'm having trouble figuring this out I know you have to subtract like terms but then I get lost can someone help me?

2006-11-07 10:26:02 · 10 answers · asked by i_heart_jake_ryan118 1 in Mathematics

one of the lines of the balmer series of the hydrogen emission spectrum is at 397 nm. what is the principle quantum number for the original energy level for this transition. show all steps in solving this problem

Could someone please help.. I'm not looking for an answer but just a guide. I'm more into how to do this than the answer... my class just learned this stuff today and it's due tomorrow..

2006-11-07 10:25:48 · 1 answers · asked by Anonymous in Chemistry

wildlife

2006-11-07 10:25:31 · 4 answers · asked by Yana 2 in Zoology

2006-11-07 10:23:50 · 3 answers · asked by glen_D 2 in Physics

2006-11-07 10:23:03 · 2 answers · asked by see 2 in Earth Sciences & Geology

Are Bonobos scared of the water?
Are Chimps?
Are Gorillas?
Are Orangutans?
and can you tell me how scared or if not, maybe why?

2006-11-07 10:21:39 · 3 answers · asked by jenjira1995 3 in Zoology

2006-11-07 10:19:02 · 12 answers · asked by Knowledge Seeker 4 in Biology

Hi, an astronaut is visiting my school tommorrow and I need to ask him a question about the fuel and/or fuel tanks of space shuttles. Can anyone give me a question to ask about that topic? I really appreciate it, I am in a real bind.

2006-11-07 10:17:51 · 6 answers · asked by seanmac331 1 in Astronomy & Space

2006-11-07 10:17:21 · 3 answers · asked by Knowledge Seeker 4 in Biology

without an electron configuration table, is it possible to figure out the electron configuration of transition metals? because they usually have 1 or 2 electrons that doesn't fill up the previous shell to go into the next.

2006-11-07 10:17:09 · 1 answers · asked by Anonymous in Chemistry

14c/15 + 7/17 can you solve this problem
it is 14c over 15 plus 7 over 17!

2006-11-07 10:14:47 · 5 answers · asked by ladynamedjane 5 in Mathematics

2006-11-07 10:10:57 · 5 answers · asked by Andrew D 1 in Mathematics

How can i learn the steps of mitosis in a fun and easy way?? ((besides looking at my book and reading it a million times...))

2006-11-07 10:10:20 · 8 answers · asked by ohsnapitslexaa 2 in Other - Science

what kind of acid do you use were do you get it and is this the easiest way of extracting it

2006-11-07 10:09:41 · 4 answers · asked by Anonymous in Chemistry

2006-11-07 10:08:19 · 2 answers · asked by Anonymous in Astronomy & Space

2006-11-07 10:06:34 · 6 answers · asked by ladynamedjane 5 in Mathematics

how do you take derivatives of:

f(x)=(4x^3 - 3x^2)/(5^7+1) ??

and:

f(x)=(8*(x^4 - 4x^2)^(1/2))

Please show all the steps!
Thank you so much!

2006-11-07 10:05:57 · 6 answers · asked by ---- 2 in Mathematics

2006-11-07 10:01:17 · 4 answers · asked by Melissa I 1 in Physics

My 6th daughter was presented this question by her christian school math teacher

2006-11-07 09:59:31 · 4 answers · asked by sgr412004 1 in Mathematics

2006-11-07 09:59:30 · 6 answers · asked by Anonymous in Geography

Please help.....explain the relationship between the carbon cycle, the greenhouse effect and global warming.

2006-11-07 09:58:21 · 2 answers · asked by *Star* 1 in Earth Sciences & Geology

2006-11-07 09:56:39 · 8 answers · asked by ladynamedjane 5 in Mathematics

Newtons?

2006-11-07 09:54:26 · 5 answers · asked by Anonymous in Physics