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Science & Mathematics - 7 November 2007

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Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

How many seasons (that can be seperated) does a typical dry desert have?

I know that the summers and winters have a great tempature difference, but can fall and spring also be told apart from summer and winter?

2007-11-07 08:50:59 · 2 answers · asked by lizzy 2 in Earth Sciences & Geology

is it that north america has more cars and south america has more wetlands and greenlands? i searched it up, but i need more info.

2007-11-07 08:48:05 · 2 answers · asked by Kim 1 in Earth Sciences & Geology

My daughter (in 5th grade) had this math question in her homework. We've not gotten the homework back yet so we don't know if the answer she came up with was right or not. It drove us crazy trying to figure out the logical way to solve it.

3580 / (A x 10) = 89 r20

What is A?

2007-11-07 08:47:35 · 16 answers · asked by sarah 4 in Mathematics

2007-11-07 08:43:31 · 5 answers · asked by Darren R 2 in Geography

What if an astronaut was on a space walk and somehow became disattached and ended up on the moon, somehow surviving the impact(lets say with his equipment/spacesuit absorbing the impact).... do you think it would possible to make a huge "HELP" on the moon big enough to see so that astronomers on earth could see it and NASA could send other astronauts to the rescue?

I'm forseeing a Time/Money problem with your answers. But, what if we happened to have a module ready along with a crew?

2007-11-07 08:38:50 · 11 answers · asked by Jansen J 4 in Astronomy & Space

Does anybody live here? I might move here. Is it a good place? What are some towns close by? I just want to know some things about it.

2007-11-07 08:38:43 · 2 answers · asked by hev_1985 4 in Geography

Assume my lines are straight.

http://i78.photobucket.com/albums/j119/carmueno/triangles.jpg

2007-11-07 08:35:57 · 34 answers · asked by carmenivy 4 in Mathematics

be true! be fair! never lie!

2007-11-07 08:33:25 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-11-07 08:32:30 · 5 answers · asked by doglover 2 in Mathematics

2007-11-07 08:31:45 · 4 answers · asked by Aaron 2 in Mathematics

You roll two number cubes. Find each probability.

1. P(odd and even)

A.1/4
B.1/3
C.1/2
D.2/9

2. P(1 or 2 and less than 5)

A.1/4
B.1/3
C.1/2
D.2/9

You select letters from the following:
A A B B B C D D E F G G G
and do not replace them. Find each probability.

3. P(A then B)

A.1/52
B.1/26
C.3/52
D.1/13

4. P(vowel then G)

A.1/52
B.1/26
C.3/52
D.1/13

2007-11-07 08:31:44 · 2 answers · asked by s.s. 2 in Mathematics

This is kind of a lame question, but I'm not exactly sure how in depth the answer has to be:
When you check your car windshield tonight (or tomorrow morning) explain why it will be wet. Base your answer upon chemical principles.
Thanks in advance for any help!

2007-11-07 08:30:48 · 1 answers · asked by ortegaphoto 1 in Chemistry

(-2,0) (3,3) (6,2) (5,1) are where the vertices are at.

M=3y-X this the equation I use.
M= (-2,0)
M= (3,3)
M= (6,2)
M= (5,1)

I need help finding the maximum and minimum values of each objective function.

Thanks in advance.

2007-11-07 08:30:39 · 1 answers · asked by Lokc 1 in Mathematics

You are designing a rectangular poster to contain 50 square inches of printing with a 4 inch margin at the top and the bottom and a 2 inch margin at each side. What over all dimensions will minimize the amount of paper used?

2007-11-07 08:26:02 · 1 answers · asked by mathfan09 1 in Mathematics

2007-11-07 08:18:17 · 11 answers · asked by worldoomedwogod@sbcglobal.net 1 in Geography

As far as the whole drug development process.

2007-11-07 08:16:35 · 1 answers · asked by Uncle Pennybags 7 in Medicine

Find 3 numbers in which the 1st is the sum of the 2nd and the 3rd, the 2nd is the square root of the 3rd and the sum of these 3 numbers is a minimum

2007-11-07 08:15:43 · 6 answers · asked by Chrisso 2 in Mathematics

i really need help with this badly it's a science but i have know clue what the answer to this question is!

2007-11-07 08:13:19 · 2 answers · asked by Anonymous in Biology

Calculate the concentrations of Pb2+ and Cl2 at equilibrium. Ksp for PbCl2(s) is 1.6 10-5.
Pb2+ =?
Cl2=?

2007-11-07 08:07:08 · 1 answers · asked by Joshua K 1 in Chemistry

What's the scientific name for a mouse ? know all about felines, cainines, equines, bovines, etc . but is there a similar name for a mouse ?

2007-11-07 08:07:00 · 15 answers · asked by I_hate_being_single 3 in Zoology

PbI2, Ksp = 1.4 10^(-8)=?
Ag3PO4, Ksp = 1.8 10^(-18)=?
CaCO3, Ksp = 8.7 10^(-9)=?

2007-11-07 08:05:37 · 2 answers · asked by Joshua K 1 in Chemistry

0.050 M NH3 / 0.15 M NH4Cl=?
0.50 M NH3 / 1.50 M NH4Cl=?

2007-11-07 08:04:00 · 1 answers · asked by Joshua K 1 in Chemistry

Which of these is used to represent a probability of an event, n?

A) n(p)
B) pn
C) p(n)
D) p!n

an explanation of why you think your answer is right would be greatly appreciated! <3

2007-11-07 08:03:31 · 2 answers · asked by teanah203 4 in Mathematics

Which sequence lists organisms in the order of producer, consumer, and decomposer?

a. earthworm, algae, bird
b. algae, earthworm, bird
c. bird, earthworm, algae
?% d. algae, bird, earthworm

I but D. as the answer but I got it wrong... but yet shouldn't it be right?

2007-11-07 08:00:20 · 2 answers · asked by J 2 in Biology

I understand the earths core is a nuclear furnace, thus keeping magma molten for eons, and occasionally breaking the surface in vents and volcanoes. The moon exhibits impact craters and some evidence of a volcanic past, but is the moon's core still molten and nuclear?

2007-11-07 07:59:54 · 13 answers · asked by Pygmaleyun 1 in Astronomy & Space

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