Science & Mathematics - 4 December 2007

The mathematics department sold $1150.00 worth of packages of pens and markers. They sold a total of 310 packages, including 10 more packages of pens than markers. If one package of pens and one package of markers cost $7.50, what was the price of each package?

2007-12-04 06:44:14 · 4 answers · asked by otherthanot 1 in Mathematics

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How are tornados and hurricanes/cyclones formed?

does anyone know where i can find a simple diagram of a tornado forming and a hurricane/cyclone forming.

Please bear in mind that i'm looking for a diagram suitable for AS level.

cheers amigo
Ricardo

2007-12-04 06:43:17 · 3 answers · asked by Anonymous in Weather

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What are the odds of the game Mafia? long question.?

My cousins and I were playing the game mafia, where everyone gets a card and the person with a jack is a character called mafia but no one knows which card people have until the end of the round. My cousin Teddy got mafia three times in a row. On the fourth time, my cousin Johnny said Teddy might be in the mafia. I said I didn't think so because he had mafia three times already. Johnny said it didn't matter because every time the cards were reshuffled the odds were all the same for everyone and it doesn't matter what people had earlier. I said not completely true. It is rare to get mafia three times in a row and the odds were even less to get mafia four times in a row so therefore the odds were not the same. Who's right in this pathetic fight and can anyone put numbers to it? There were 10 players: 2 mafia, one doctor, one detective, and 6 villagers. It doesn't matter the rules. I just want to know the odds to get mafia 3 times compared to 4 times.

2007-12-04 06:41:30 · 2 answers · asked by Mary S 2 in Mathematics

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how can cartography help us fight epidemics?

2007-12-04 06:41:22 · 2 answers · asked by misspinkdiamond 2 in Geography

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pros cons space exploration?

2007-12-04 06:39:28 · 5 answers · asked by Rebecca 1 in Astronomy & Space

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My body has 3 anomalies (see below), may it be any use for science like anatomy or medicine?

1) bended gall-bladder,
2) two head crowns (tops)
3) my left (big) toes are shorter then the other ones

2007-12-04 06:37:55 · 3 answers · asked by Alex N 3 in Medicine

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Is Pigs Pussy Pork?

2007-12-04 06:36:24 · 12 answers · asked by Just another White Boy 3 in Zoology

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physics question?

A bubble with a volume of 1.00 cm^3 forms at the bottom of a lake that is 30 m deep. The temperature at the bottom of the lake is 10°C. The bubble rises to the surface where the water temperature is 25°C. Assume that the bubble is small enough that its temperature always matches that of its surroundings. What is the volume of the bubble just before it breaks the surface of the water? Ignore surface tension. Units in cm^3

2007-12-04 06:35:08 · 1 answers · asked by Eli D 1 in Physics

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physics question?

A cylinder contains 270 L of hydrogen gas (H2 at 0.0°C) and a pressure of 10 atm. How much energy is required to raise the temperature of this gas to 25°C?

2007-12-04 06:34:07 · 2 answers · asked by Eli D 1 in Physics

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How much is 1,(one-hundred zeros) to the 1,(one-hundred zeros)th power???

You know how google means 1 followed by one hundred zeos, then what is a google to the googleth power?

2007-12-04 06:29:41 · 3 answers · asked by Christian W 1 in Mathematics

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Is the St. JOhns river a mature one or a young one?

im doing a reaserch paper, and it would be useful if there is any other information you know on the river

2007-12-04 06:27:09 · 2 answers · asked by Malcolm S 1 in Geography

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Photons per second?

If an FM radio station is emitting 81.7 kW in its 82.6-MHz radio wave, how many photons is it emitting each second?

2007-12-04 06:22:04 · 2 answers · asked by ??? 2 in Physics

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How many known dimensions are there?

I kinda understand 4D but(with out making it too complicated im only a 9th grader) how many are there, or how many do we think there are, and what exactly happens when you go up a demension, and what it is.

2007-12-04 06:20:40 · 11 answers · asked by Christian W 1 in Astronomy & Space

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word problem?

Jill can do a job in 8 hours. John can do it in 12 hours. If Jill works 2 hours less than John, how many hours will it take them working together?

2007-12-04 06:20:31 · 4 answers · asked by Anonymous in Mathematics

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how is plutonium refined?

i need to know for a social studies project how plutonium is refined from plutonium dioxide.

2007-12-04 06:18:00 · 2 answers · asked by Anonymous in Medicine

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Which statement is true about water molecules?

A.The oxygen atom has a negative charge.
B.The hydrogen atoms do not share electrons.
C.Water molecules move randomly around each other.
D.Water molecules cannot dissolve many substances.

Question 2

How does water relate to the ability of a living thing to generate energy?

A.Water is responsible for the generation of energy in the cell.
B.The cell is an aqueous environment.
C.Without the proper balance of water, chemical reactions in cells could not take place.

What is the most important role of hydrogen bonding between water molecules

A.It enables water molecules to bond to each other.
b.It allows oxygen and hydrogen atoms to be charged.
c.It allows cells to keep water in balance.

2007-12-04 06:13:15 · 2 answers · asked by Weemann 2 in Biology