Science & Mathematics - 15 October 2007

from my understanding, the milky way should only be visible half the year. The other half, we are looking toward the perseus spiral arm. And less stars should be visible during that time.

2007-10-15 15:05:29 · 7 answers · asked by misoma5 7 in Astronomy & Space

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what is glucose?

2007-10-15 15:01:47 · 26 answers · asked by sexyfarmchic1_68 1 in Biology

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how do i re word tis please answer nowwwwwwwwwwwwwwwwww report is due in 3 hours?

Increasingly discriminatory measures in Nazi Germany led many jews, and others targeted by the Nazis to try to leave the country.

2007-10-15 14:56:26 · 8 answers · asked by Leah S. 1 in Geography

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Sedimentary Rock?

It starts with a B and has 9 letters. Volcanic Ash Origin.

2007-10-15 14:54:36 · 4 answers · asked by Uski 4 in Earth Sciences & Geology

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given f(x)=-5x-1, find f(-2)?

2007-10-15 14:54:27 · 11 answers · asked by CECILIA G 1 in Mathematics

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iam doing a science fair how do i do. what drink evaporates first?????????

how can i find help and where can i find help. iam just starting my bibliography and i need five note cards and i cant find where to look at.?

2007-10-15 14:52:47 · 2 answers · asked by Anonymous in Earth Sciences & Geology

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what is the situation when the order of the steps of the scientific method may be altered?

2007-10-15 14:52:44 · 1 answers · asked by britt-britt r 1 in Physics

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very easy(only part B required)?

A box of mass m is sliding along a horizontal surface.

Part A:(solved)

The box leaves position x = 0 with speed v_0. The box is slowed by a constant frictional force until it comes to rest at position x = x_1.

Find F_f, the magnitude of the average frictional force that acts on the box. (Since you don't know the coefficient of friction, don't include it in your answer.)
Express the frictional force in terms of m, v_0, and x_1.
I figured out answer to be: 0.5*m*v0^2/x1
Part B:
After the box comes to rest at position x_1, a person starts pushing the box, giving it a speed v_1.

When the box reaches position x_2 (where x_2 > x_1), how much work W_p has the person done on the box?
Assume that the box reaches x_2 after the person has accelerated it from rest to speed v_1.
Express the work in terms of m, v_0, x_1, x_2, and v_1.
It has something to do with conservation of energy

2007-10-15 14:52:26 · 4 answers · asked by Madiyar T 1 in Physics

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Math study?

A social worker investigating the relationship between income levels and infant- mortality rates studied 45 random families and found that the correlation coefficient was -0.524. Does this indicate a strong negative relationship between income levels and infant mortality rates?

2007-10-15 14:51:49 · 2 answers · asked by Anonymous in Mathematics

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Could someone please help, by solving this and telling me how they did it?

Find the indicated root, or state that the expression is not a real number.

- 3√-64
The - 3 is an exponent as is before the square root symbol.

2007-10-15 14:48:00 · 2 answers · asked by Brick Top 1 in Mathematics

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Why did they name uranus uranus?

2007-10-15 14:47:22 · 3 answers · asked by Anonymous in Astronomy & Space

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What is going to happen if Global warming do occurs?

Sure I hear people saying it going to be dreadful, and some believe we are all going to die and it going to be the end of the world.

But like how is Global Warming going to affect the world that would do a such of a thing. Correct if I'm wrong, I'll admit I'm not really sure whats going to happen in the world, but using common sense, the world is essentially going to get warmer...

I'm sure we can survive, we can drink plenty of water and turn on the A.C to keep us alive?
If we survived the Ice Age, we can surely survive this thing...right?

2007-10-15 14:44:33 · 8 answers · asked by Anonymous in Earth Sciences & Geology

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can u solve this????please i need help?

every fourth customer at a store gets a free bumper sticker and every tenth customer gets a 10% discount out of the first 100 customers how many will recieve a bumper sticker and a 10% discount

a roll of wallpaper contains 50ft how many rolls of wallpaper will be needed to paper a wall 25 ft longvand 10 ft wide

2007-10-15 14:43:41 · 12 answers · asked by bossy_girl2320 1 in Mathematics

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Organic Chemistry: Limiting Reagent?

If we use exactly 0.100 ml of tert-butyl bromide and 1.0 ml of 1.6 M postassium tert-butoxide in DMSO:
a. What is the limiting reagent ? Show reasoning
b. Calculate the theoretical yield in milliliters of the butene produced at 740 mm and 25 degrees celcius when it is collected over water. R=0.0821 liter atm/mol K and the vapor pressure of water is 24 mm at 25 degrees celcius. (Recall, PV=nRT)

2007-10-15 14:41:53 · 1 answers · asked by Anonymous in Chemistry

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People keep saying this is not true?

I said that the faster you go, the slower time goes, and it would stop at the speed of light, am I correct?

2007-10-15 14:40:35 · 6 answers · asked by Anonymous in Astronomy & Space

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Math Questions(Stuck On These Last 3)?

Make Each Fraction as a Percent and decimal

1. 3/5
2.13/25
3.17/20

2007-10-15 14:39:55 · 21 answers · asked by 5 in Mathematics

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precipitates?

is magnesium phosphate and/or calcium phosphate a cloudy white precipitate?

2007-10-15 14:38:17 · 1 answers · asked by missxflirt101 1 in Chemistry

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What is the meaning of b(square) - 4ac larger than or equal to 0?

This question is related to dicriminant of roots chapter(mathematics) . Is it same as the b(square) - 4ac larger than 0. What is the difference between them?

2007-10-15 14:36:30 · 9 answers · asked by saktish v 1 in Mathematics

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Chemistry Emprical formula?

A certain anesthetic contains 64.9 percent C, 13.5 percent H, and 21.6 percent O by mass. At 120°C and 750 mmHg, 1.00 L of the gaseous compound weighs 2.30 g. What is the molecular formula of the compound? (Type your answer using the format CH4 for CH4.)

2007-10-15 14:36:28 · 3 answers · asked by C7S 7 in Chemistry

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Who's Doing Millions Of Documented Animal And Cattle Mutilations?

How Much Documnted ET Prov do You Need?

http://search.yahoo.com/search?p=cattle+mutilations&ei=utf-8&fr=b1ie7

http://images.search.yahoo.com/search/images;_ylt=A0geu.L2FBRHcAgAjPdXNyoA?ei=UTF-8&p=cattle%20mutilations&fr2=tab-web&fr=b1ie7

2007-10-15 14:35:41 · 7 answers · asked by Anonymous in Astronomy & Space