Science & Mathematics - 1 November 2007

2007-11-01 04:38:20 · 4 answers · asked by nickjonasroxtheworld!!!!!!! 3 in Earth Sciences & Geology

I need to know this in like 30 minutes!

2007-11-01 04:32:06 · 6 answers · asked by Lollypop --o 2 in Geography

1. The table below shows the average high and low temperature in January and July for two cities at the same latitude. Both cities receive about the same amount of sunlight. Which city is on an island in the ocean and which city is in a desert?
A) City A is on an island; City B is in the desert.
B) Both cities are in the desert.
C) Both cities are on an island.
D) City B is on an island; City A is in the desert.
E) Not enought information is given.

City Temperatures are in Farinheit:

January High for City A is 78.8
January Low for City A is 64.4
July High for City A is 82.4
July Low for City A is 68.0

Janurary High for City B is 89.6
Janurary Low for City B is 50.0
July High for City B is 111.2
July Low for City B is 80.6


Any help with this would be awesome!!

Thanks!!!!!!! =]

2007-11-01 04:30:31 · 5 answers · asked by missangela 1 in Geography

2007-11-01 04:30:22 · 1 answers · asked by alanis118 1 in Chemistry

1. The enzyme Esterase-5 has been extracted and purified from a number of supposedly closely related fruit fly (Drosophila) species. These have been run under gel electrophoresis, to separate by overall charge. The distances the protein dots have moved down the gel are shown below. Show these data graphically. (Hint- are these discrete or continuous variables?)

Drosophila species Distance From origin to protein spot(s) mm

D. simulans 142 and 150

D. sechellia 142 and 150

D. pseudoobscura 138

D. persimilis 142 and 138

D. grimshawi 160

Questions
1) What can you deduce about the phylogeny of these flies?
2) Why do some flies appear to have two spots and others appear to have one?
3) What shortcomings in this technique are obvious from this data?

2007-11-01 04:29:30 · 2 answers · asked by sam 1 in Botany

2007-11-01 04:27:55 · 3 answers · asked by Stacey C 1 in Earth Sciences & Geology

need some help simplifying this, thanks

2007-11-01 04:27:54 · 3 answers · asked by bob oso 2 in Mathematics

Find an equation of the tangent line to the curve at the point (2, 0).
y = ln (x^3 - 7)

i think the derivative is 1/x^3-7 *3x^2

2007-11-01 04:25:09 · 5 answers · asked by lady_divine@sbcglobal.net 1 in Mathematics

If electron has momentum p, then
its waveleghth is λ=h/p,
and its frequency is f = E/h.

The velocity of de Broglie wave is
u = λf = h/p E/h = E/p = 1/2 p²/m /p = 1/2 p/m.

Should not velocity of electron be v = p/m?

2007-11-01 04:24:03 · 4 answers · asked by Alexander 6 in Physics

Find y ' and y ".

y= ln(4 x)/x^7

2007-11-01 04:23:15 · 1 answers · asked by lady_divine@sbcglobal.net 1 in Mathematics

2007-11-01 04:21:22 · 6 answers · asked by getuplate_haha 1 in Zoology

I would like to study this topic if you can recommend some literature.

2007-11-01 04:11:16 · 10 answers · asked by searching 1 in Astronomy & Space

2007-11-01 04:07:16 · 3 answers · asked by Anonymous in Physics

cat- for both negative and positive?

how to understand the cat- means descent in the words of cathode, cation.

the same thing happen to anode and anion.
Thanks.

2007-11-01 04:03:08 · 2 answers · asked by for2000 3 in Chemistry

Suppose you are given three maps, A, B, and C (each 17.5 inches long by 13.5 inches wide). Map A has a scale of 1:62,500; map B a scale of 1:125,000: and a map C a scale of 1:250,000.

How much area is shown on C compared to that shown on B?

How much area is shown on C compared to that shown on A?

2007-11-01 04:00:59 · 5 answers · asked by >mjd 1 in Earth Sciences & Geology

2007-11-01 03:57:10 · 3 answers · asked by b a 1 in Chemistry

Which feature in the oceans is the LEAST laterally continuous?
a) Continental Rise
b) Mid-Ocean Ridge
c) Seamount
d) Trench

2007-11-01 03:55:52 · 3 answers · asked by David S 1 in Earth Sciences & Geology

What are the differences among river, lake, sea, ocean and water etc?

I dunno if there are any other geographical terms. However, im very grateful if u can explain all relevant terms to me.

Thank u very much.

2007-11-01 03:50:17 · 5 answers · asked by cutie 2 in Geography

2007-11-01 03:49:12 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-11-01 03:44:43 · 7 answers · asked by joy o 1 in Mathematics

then, how do photons do it? I mean, in physics class, we were taught, that to move something at constant speed, you need constant unchanging force. So how can something apply to one section of the universe and not another?

2007-11-01 03:32:13 · 11 answers · asked by Anonymous in Astronomy & Space

I WANNA KNOW!

2007-11-01 03:28:18 · 12 answers · asked by SPARTAAAA 1 in Zoology

2007-11-01 03:28:12 · 22 answers · asked by Anonymous in Astronomy & Space

Explain why or why not

2007-11-01 03:23:41 · 19 answers · asked by Brittany T 1 in Biology

2007-11-01 03:23:31 · 2 answers · asked by carmen a 1 in Astronomy & Space

This question has a few parts:
From the article here:
http://news.yahoo.com/s/afp/20071031/sc_afp/usastronomy2_071031201428
it is true that black holes vary in size - what determines the size of the hole and does size change over time?

Does light absorbed by a black hole contribute to its mass?

Is the gravity of a black hole the same as that of earth - differing only by strength/force?

2007-11-01 03:19:01 · 4 answers · asked by Joe B 1 in Astronomy & Space

In the summer of 1974, a Hungarian architect invented a three dimensional object that could rotate about all three axis. He wrote up the details of the cube and obtained a patent in 1975. The cube is now known worldwide as the Rubik's Cube. When you purchase the cube (3x3), it is arranged so that each face is showing a different colour, but after a few turns it seems next to impossible to return to the start. A manufacturer claims there are 8.85801027 x 10^22 possible arrangements, of which only contains only one correct solution. Do you agree with the claim? If yes, show how you obtain that answer; If no, what is the possible arrangements. Show your working properly.

2007-11-01 03:18:03 · 5 answers · asked by cincauhangus 2 in Mathematics

- or antennae-like protrusions coming from their heads?

2007-11-01 03:16:49 · 14 answers · asked by PunkenPye 3 in Zoology

What are some specific arguments with support against cloning? I know of ethics, but I need elaboration on this.
I know of reduced genetic variation as a negative, but elaboration on this as well. What is another specific argument why cloning should be banned. Initially I thought of the imperfections of cloning but it was vague so I need another topic. Thanks.

2007-11-01 03:11:49 · 3 answers · asked by Anonymous in Biology

2007-11-01 03:10:14 · 4 answers · asked by Anonymous in Mathematics