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Science & Mathematics - 17 November 2007

[Selected]: All categories Science & Mathematics

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

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2007-11-17 11:08:35 · 1 answers · asked by The Coroner of China 3 in Earth Sciences & Geology

answering your question yes I am taking care of the animals and the farm but I dont know the first thing about farming and I really would like to keep it. COWS! I dont know the first thing about milking it. Do this cow needs shots? Can anyone drink the milk? How often do you milk it? How often do you have to have it checked? The house is in very good condition, my mom and I are thinking about moving in it, it is in better shape than ours. The garden is huge I don't know how to take care of it. I'm a city girl not a country girl but it is really nice.

2007-11-17 11:05:30 · 3 answers · asked by Anonymous in Agriculture

Find the new balance for $1000 left on deposit for 6 months at 4% interest compounded quarterly.


Do you use a formula to find the answer? Please help!!!

2007-11-17 11:04:57 · 8 answers · asked by karazee! 2 in Mathematics

I know about the evolution, but how the first animal was created? how first monkey was created? were they just a small cell from the beginning? I get it how first plants were created, but how animals were created? how were dinosaurus created? were they just a small cell from the beginning that kept growing?

2007-11-17 10:56:43 · 5 answers · asked by baywatch 3 in Biology

find the equation of the line passing throught (3, -1) and perpendicular to y=x + 1.


put your answer in slope intercept form

2007-11-17 10:54:56 · 10 answers · asked by lady 1 in Mathematics

I'm struggling on this but i get the feeling it's easier than i think.
The sequence is defined by:

x_n+1 = (x_n^5 + 2) / 6
where the initial value is 0.

and you need to show that

| x_n+1 - x_n |
after having shown that 0< x_n <1 (which i was able to do).

( by the way
can anyone help?

2007-11-17 10:52:43 · 2 answers · asked by mongrel73 1 in Mathematics

I realise it's easy, I'm just checking I'm doing it right.

2007-11-17 10:52:37 · 5 answers · asked by Me 1 in Mathematics

what is it, what does it do, and how much is it worth?

2007-11-17 10:48:37 · 2 answers · asked by Anonymous in Engineering

I have to do a scale drawing of the earth's atmosphere. The scale is 1 mm=3 km. I want to put a picture of the aurora borealis on here. How big should it be and where should it go to? Should i start at the Karman line (100 km) and go up? Where should i go up to? I really need to know at what height above the earth's surface a typical aurora borealis begins and also at what height above the earth's surface a typical one ends? Where should I start drawing it and where should I end it? If you can give me numbers in km, that'll be great, but other units are alright also. I am asking because I've found very different numbers, such as 97 km-1000 km and 90 km -130 km. Also where should meteors go? For meteors I've found 80 km-110 km, 80 km-120km, and 65 km-135km. The last one is height of ablation. Which one is correct?

2007-11-17 10:45:09 · 1 answers · asked by pjp 1 in Earth Sciences & Geology

What is the de Broglie wavelength of an electron that strikes the back of the face of a TV screen at 1/10 the speed of light?
_____m

2007-11-17 10:41:02 · 4 answers · asked by w_rayas07 1 in Physics

A) A "dead" 12-Volt lead/acid storage battery has 4.40 g of PbSO4 (molar mass = 303.3 g), deposited on its electrodes. To recharge it, a ``trickle charger" is attached to the Pb anode that supplies 0.280 amperes of current at a voltage of 13.0 V. Calculate how much time it would take to convert all the PbSO4 back into SO42- ions in solution.

B) How long would it take to electrodeposit all the Cu2+ in 0.300 L of 0.250 M CuSO4 solution with an applied potential difference of 0.275 V and a current of 2.65 amperes? Enter your answer in minutes.

thanks a lot!

2007-11-17 10:40:14 · 2 answers · asked by Peter 2 in Chemistry

I am doing a science fair project and i prepared my perti dishes, but there are water droplets ontop of the dish. should i just leave them there or will then contaminate my sample?

2007-11-17 10:39:02 · 2 answers · asked by Anonymous in Biology

2007-11-17 10:37:22 · 7 answers · asked by leechy1988 1 in Chemistry

2007-11-17 10:34:55 · 3 answers · asked by hate mi kill mi nam mi raw !!! 2 in Chemistry

like obviously time as we kno in earth doesnt apply out in space. so wat exactly is time in space? is there a definite unit? or does it exist always as a relative to something else?

2007-11-17 10:32:26 · 14 answers · asked by Anonymous in Astronomy & Space

2007-11-17 10:31:15 · 8 answers · asked by Jasmine J 1 in Biology

The manufactor will charge you a time fee of $1000 to produce the glasses with the Laurel Highlands Mustang printed on them. The manufacturer will sell each glass $1.15. Your torla on one glass would be $1001.15($1000+$1.15), for two glasses your cost would be $1002.30 ($1000+$2.30), and so on.

Your planning to sell them for $ 4.95 Each.

2007-11-17 10:30:45 · 4 answers · asked by Loreale 1 in Mathematics

At the rate they are going we are never going to see exo planets, its time we figure out a whole new way of collecting light

2007-11-17 10:28:35 · 7 answers · asked by Anonymous in Astronomy & Space

Hi. Currently doing a science assignment.
What i need to know is a list of space jobs.. eg: space engineer etc.
thanks

2007-11-17 10:26:20 · 3 answers · asked by smehdjgla 2 in Astronomy & Space

M2 = 153.0 kg, which is initially at rest on a frictionless surface. The spring has a spring constant k = 1640 N/m. What is the maximum compression of the spring?

2007-11-17 10:22:38 · 2 answers · asked by MeDIGURU 1 in Physics

like cast iron, mild steel, alloy steel, stainless steel, and tool steel

2007-11-17 10:16:14 · 3 answers · asked by condesa 1 in Engineering

2007-11-17 10:15:53 · 7 answers · asked by uncle fester 1 in Zoology

2007-11-17 10:15:15 · 2 answers · asked by Anonymous in Botany

two identical small spheres of negligible mass. are separated by a centre to centre distance of 2 meters. The force between them is 6 N. calculate the charge on each sphere.

answer: 1.3 x 10^(-4)

2007-11-17 10:14:56 · 1 answers · asked by bhavin p 1 in Physics

what is a lightning like what causes it? might sound simple/stupid .

2007-11-17 10:14:42 · 6 answers · asked by Anonymous in Weather

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