Science & Mathematics - 7 February 2007

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2007-02-07 14:18:47 · 4 answers · asked by Anonymous in Mathematics

2007-02-07 14:18:39 · 1 answers · asked by Anonymous in Geography

2007-02-07 14:18:32 · 6 answers · asked by Hollister fanatic 1 in Geography

For the following descriptions of a metathesis reaction, write the molecular, ionic and net ionic equations.

A precipitate of lead(II) chloride is observed to form when solutions of lead (II) nitrate and ammonium chloride are combined.

2007-02-07 14:18:08 · 2 answers · asked by Alan l 1 in Chemistry

Limestone, an underlying material for many soils, dissolves and corrodes when exposed to high concentrations of hydrogen ions. How is this information important in understanding the effects of acid precipitation?

2007-02-07 14:17:37 · 3 answers · asked by Jay 1 in Biology

I was just sitting in my hot tub, surrounded by hundreds of forest trees...
when this huge wind storm blew in...it was awesome.
Lightening, thunder, snow, heavy rains and wind...am I the only one who just loves a good storm?
(Especially when your safe and indoors)

2007-02-07 14:17:10 · 13 answers · asked by Anonymous in Weather

well it is in Oxford anyway!! Is it anywhere else??

2007-02-07 14:16:52 · 32 answers · asked by Seriously Though 4 in Weather

Ok i have this math problem that im really stuck on and its on Retail inverntory (its for a retail buying course) and im really frustrated and confused on how to complete the problem which is:

The women's department had an opening inventory of $64,000. The net purchase were $105,000 gross sales were $130,000, customer returns were $5000, and markdowns--including employee discounts--were $7600. Shortages of 2%. Calculate: A) the closing retail book inventory B) The estimated physical inventory

2007-02-07 14:15:59 · 1 answers · asked by krissy t 2 in Mathematics

If oxygen gas were collected over water at 20 degress C and the total pressure of the wet gas were 670 mm Hg, what would be the partial pressure of the oxygen?

2007-02-07 14:15:38 · 4 answers · asked by confused 2 in Chemistry

A bag contains one marble known to be red or green. A green marble is put in the bag and the bag is shaken well. A marble is drawn randomly and it is green. What is the probability that the remaining marble is also green?

2007-02-07 14:13:47 · 6 answers · asked by Dan 1 in Mathematics

Two point charges of +10 nC and -20 nC are fixed at 2 vertices of an equil. triangle with sides of 2m, located in a vacuum. What is the magnitude of the E field at the third vertix.

I need help setting up this equation. i'm almost positive you use cos 60 and the answer is 7.8x10^4 N/C.

2007-02-07 14:13:33 · 1 answers · asked by benzene boy 1 in Physics

*(Just in case you don't know, transported soils are soils eroded and deposited away from its parent bedrock. So, basically its soil that has been moved from where it originally formed.)*
In Earth Science we are studying the chapter on weathering, erosion, and soils, so the answer has to do with that. PLEASE HELP!!!

2007-02-07 14:13:27 · 1 answers · asked by harrypotteressence 3 in Earth Sciences & Geology

2007-02-07 14:13:08 · 5 answers · asked by sanam p 1 in Botany

Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 200 N and a coefficient of kinetic friction on snow of .1. Unfortunately, the skis run out of fuel after only 10s.
What is Sam's top speed?
How far has Sam traveled when he finally coasts to a stop?

2007-02-07 14:12:20 · 1 answers · asked by RAWR! 2 in Physics

1) The sides of a rectangle are 8 ft and 12 ft long.
(a) Find the perimeter of the rectangle. Include units in your computation and answer.
(b) Find the area of the rectangle. Include units in your computation and answer.

2) We throw a die twice. How many different outcomes are possible? (One example of an outcome is:
first roll is a 2 and the second roll is a 5)

2007-02-07 14:11:06 · 10 answers · asked by Agentj100 4 in Mathematics

2007-02-07 14:10:44 · 5 answers · asked by L S 1 in Astronomy & Space

In Earth Science we are studying the chapter on weathering, erosion, and soils. This question was in my homework, so can anyone please help?

2007-02-07 14:10:44 · 1 answers · asked by harrypotteressence 3 in Earth Sciences & Geology

An enzyme can only catalyze a reaction b/w very specific reactants due to their shapes. what might happen if the enzyme's shape was changed? Pls include at least one way to change the shape of an enzyme.

I'll give the best answer to the person who can answer well and it makes sense or not. Thanks!

2007-02-07 14:10:43 · 5 answers · asked by Anonymous in Biology

Three dice are tossed. what is the probability that the numbers that are shown on the dice will be different?

2007-02-07 14:10:35 · 3 answers · asked by Dan 1 in Mathematics

Plz help if ur good at science?
Plz help if ur good at science?
Plz help if ur good at science?
Why is calculated diff. from measured when using a lever?

2007-02-07 14:10:06 · 1 answers · asked by Sunshine 1 in Physics

Like a website where you put in the number of grams press calculate and it shows you how many pounds it is?

2007-02-07 14:09:57 · 3 answers · asked by D: 4 in Mathematics

2007-02-07 14:09:31 · 4 answers · asked by kity1213 1 in Biology

What can I do Im in 9t honors

2007-02-07 14:08:33 · 2 answers · asked by Anonymous in Mathematics

In Earth Science we are studying the chapter on weathering, erosion, and soils. This question was in the homework sheet, so the answer has something to do with those topics.

2007-02-07 14:07:39 · 12 answers · asked by harrypotteressence 3 in Earth Sciences & Geology

2007-02-07 14:07:18 · 1 answers · asked by RAWR! 2 in Physics

2007-02-07 14:06:52 · 5 answers · asked by Elen M 1 in Weather

What is the change in the (liquid) water's temperature if the engine operates until 836000 J of Heat are added?

2007-02-07 14:06:35 · 2 answers · asked by Anonymous in Physics

2007-02-07 14:06:33 · 3 answers · asked by sanam p 1 in Botany

2007-02-07 14:05:51 · 8 answers · asked by Anonymous in Mathematics

2007-02-07 14:05:16 · 5 answers · asked by Anonymous in Physics