Science & Mathematics - 13 November 2007

Scroll down until you meet Damian Peach. His images are incredibly good, even in the worst seeing conditions. Which processing filter does he use, after aligning and stacking?
http://alpo-j.asahikawa-med.ac.jp/kk07/m071106z.htm

2007-11-13 05:40:08 · 4 answers · asked by Io S 2 in Astronomy & Space

Please help to EXPLAIN (not just give answers), how to find each answer to the questions below...THANKS!
This is in accounting class, but I think math might work better
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Al is considering opening a gift shop. He has collected the following information:

Monthly rent: $2,800
Monthly sales salaries: $1,200
In addition to the sales salaries, Al intends to pay a 5% sales commission to his sales staff.
The cost of merchandise sold is expected to be 40% of sales.

1. Determine Al's break-even point (BEP) in monthly sales dollars.
2. Determine the monthly sales dollars required to earn $2000 profit per month.
3. Determine Al's BEP if he reduces rent by $200/month.

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For 4,5, and 6, assume:
*He's reduced his merchadise purchase cost by 10%.
*This will not effect the sale price of her product.
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4. Determine the new Contribution Margin Ratio.
5. What's the new BEP in monthly sales dollars?
6. What's the new sales amount needed for $2,000 profit?

2007-11-13 05:39:06 · 3 answers · asked by mikeburman11 1 in Mathematics

What is the product when m-nitroacetaphenone is treated with NaBH4 in ethanol?

I cant figure out what the forumla for the product is. Any help would be great.
Thanks

2007-11-13 05:38:52 · 2 answers · asked by Anonymous in Chemistry

2007-11-13 05:35:56 · 3 answers · asked by xannie222x 2 in Physics

I have to use a graphing calculator to do fnInt ( ______________, ______, _______, _______ ) = ___________.

Problem is, I have no idea what to do or where to start.

2007-11-13 05:28:54 · 1 answers · asked by Anonymous in Mathematics

2007-11-13 05:28:44 · 1 answers · asked by worldoomedwogod@sbcglobal.net 1 in Mathematics

anyone know how to convert 64.04 ppm to mg/L?

2007-11-13 05:28:20 · 5 answers · asked by Justin 2 in Chemistry

Should there be any limits at all?

I can understand keeping an open mind about the possibility of extraterrestrial life or anything else that is plausible, but should I keep an open mind about my car turning into a unicorn?

Is it close minded to think dreams involve no actual travel outside of the body? Is it close minded, in the light of her claims and evidenced failures, to suspect Sylvia Browne of wholesale fraud? Is it close minded to believe all possible natural causes must first be eliminated before even considering paranormal causes?

Naturally, one should do what one can to avoid acting with prejudice should consider all evidence when evaluating a paranormal claim. One should use this evidence, along with reason, rationality and to some degree probability when doing before really jumping to any conclusion. However, I see many responses here where the default answer is: It must be paranormal. There is no other possible explanation.

2007-11-13 05:24:42 · 12 answers · asked by Peter D 7 in Paranormal Phenomena

Mercury used to be prepared in the laboratory by heating mercuric oxide

2HgO(s) 2Hg(l) + O2(g)

If 1.87 g of mercuric oxide were heated, what would be the theoretical yield of mercury?

Theoretical yield = ? g Hg

Suppose 1.09 g of mercury was actually collected: what is the percent yield?

Percent yield = %

2007-11-13 05:24:17 · 1 answers · asked by chemgirl78 2 in Physics

a. observations during eclipses reveal a very extensive photosphere.
b. collisional broadening is observed in spectral lines.
c. the Zeeman Effect is observed in sunspots.

2007-11-13 05:21:53 · 5 answers · asked by justin c 2 in Astronomy & Space

18+70=88

2007-11-13 05:21:26 · 2 answers · asked by Anonymous in Mathematics

Imagine a train consisting of N frictionless cars following a locomotive that is accelerating the whole train forward with acceleration of magnitude a. Assume that the first car behind the locomotive has mass M. If the tension in the coupling at the rear of each car is 10% smaller than the tension in the coupling in the front of the car, what is the mass of each sucessive car as a fraction of M? What is the total mass of the cars in terms of M? [Hint: You might find it helpful to know that 1+x^2+x^3+...+x^n=(1-x^n+1)/(1-x).]

2007-11-13 05:18:07 · 1 answers · asked by Anonymous in Physics

2007-11-13 05:14:58 · 6 answers · asked by Sarah W 1 in Biology

need answer for school project please

2007-11-13 05:11:00 · 6 answers · asked by Dinqua 2 in Engineering

What exactly is the formula for figuring out what grade is needed on the final to get a certain grade?

2007-11-13 05:08:45 · 5 answers · asked by Starr W 2 in Mathematics

a. the pattern of the magnetic polarity of the spots repeatgs about every 22 years.
b. Sunspots appear in pairs because they form when the magnetic field kinks and breaks through the photosphere.
c. The sunspots are heated by the magnetic field to a temperature of 4800 K above their surroundings in the photosphere.

2007-11-13 05:04:51 · 6 answers · asked by justin c 2 in Astronomy & Space

If you can, please give me step by step. Those who know ofcourse. Points to the right answer!

1. (7a^3b/3ab^5)/(21a^4b^2/14a^3b) = ?

and

2. (4y/3x)+(15x^2/2y) = ?

2007-11-13 05:04:32 · 5 answers · asked by grfisgd 6 in Mathematics

What is the wavelength of a wave whose speed and period are 76 m/s and 5.12 ms, respectively? answer in meters

2007-11-13 05:02:48 · 1 answers · asked by Jerry M 1 in Physics

If the column is 2.0 m in length before adding weight, what is the length after adding the weight?

2007-11-13 05:02:15 · 3 answers · asked by Pascal 4 in Engineering

Bruce stands on a bank beside a pond, grasps the end of a 10.0 m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 38.0° with the vertical, what is Bruce's speed at the bottom of the swing?
____m/s

My biggest problem is I dont understand what 38.0degrees with the vertical means

2007-11-13 04:53:58 · 1 answers · asked by ? 2 in Physics

I forgot to mention, both cars are traveling in the same direction. I did very well in Algebra (20 years ago), I just can't remember for the life of me how to set this up. I appreciate anyone's time!!!!!

2007-11-13 04:51:39 · 9 answers · asked by Jeff 1 in Mathematics

Are all paranormal claims fact by default unless they are disproved?

2007-11-13 04:51:17 · 9 answers · asked by Peter D 7 in Paranormal Phenomena

How does sunlight reach the earth?

2007-11-13 04:45:58 · 2 answers · asked by kitty_mae74 2 in Earth Sciences & Geology

how many revolutions will hour hand make with respect to stars in one day?

Lets ignore small difference between siderial day and solar day.

2007-11-13 04:44:57 · 3 answers · asked by Alexander 6 in Mathematics

2007-11-13 04:39:09 · 11 answers · asked by ayanda357 2 in Biology

are teir any images on the internet which show this?!?!

2007-11-13 04:37:27 · 10 answers · asked by Anonymous in Astronomy & Space

in the equation-
M = m - 5 log(d/10)
M=absolute magnitude,
m=apparent magnitude,
d=distance,
but what is 5 log?

2007-11-13 04:35:49 · 1 answers · asked by Mr. Roadie 2 in Astronomy & Space

2007-11-13 04:33:28 · 24 answers · asked by Scott B 1 in Zoology

A plane weighing 220 kN (25 tons) lands on an aircraft carrier. The plane is moving horizontally at 64 m/s (143 mi/h) when its tailhook grabs hold of the arresting cables. The cables bring the plane to a stop in a distance of 87 m.

(a) How much work is done on the plane by the arresting cables? (in MJ)
I have gotten the answer 45.9755...
that is NOT correct! any help??

2007-11-13 04:31:57 · 1 answers · asked by ? 2 in Physics

I heard in the news that they are exhuming a body that was buried in 2004. How would the body currently be?

2007-11-13 04:27:38 · 7 answers · asked by Anonymous in Medicine