By what factor does its volume change? I got this question in Biology class and I don't understand it, can someone help me? My teacher gave me this extra information: The surface area of a sphere =4(3.14) radius to the 2nd power, and the volume of a sphere =4/3(3.14) radius to the 3rd power. Diameter = 2 x radius.

2006-11-05 11:23:52 · 7 answers · asked by Panic! attack 1 in Mathematics

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How much energy does it take to turn a 15 gram pice of ice into 80F water?

2006-11-05 11:23:12 · 2 answers · asked by Anonymous in Physics

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what is the most beautiful animal to you and why?

2006-11-05 11:22:39 · 12 answers · asked by milo2angel 2 in Zoology

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which of these is a palindrome? 56,546 56,456 or 45,654 ??

2006-11-05 11:21:58 · 14 answers · asked by Aykut O 2 in Mathematics

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Algebra Factoring Ax^2+Bx+C?

We have to do an Algebra review for Geometry, and I forgot how to factor this:

2x^2-25x-13

2006-11-05 11:21:43 · 5 answers · asked by GoldRenamon 2 in Mathematics

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A mathematical experiment?

f(x) is a monic polynomial of degree 6. It has the following values:
f(0)=0
f(1)=1
f(2)=2
f(3)=3
f(4)=4
f(5)=5

Question 1: what is f(6)?
Question 2: do you think that other people are likely to get this question wrong?

2006-11-05 11:21:36 · 5 answers · asked by Pascal 7 in Mathematics

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How do satellites work?

I was just gazing up into the sky and realised that I don't know how satellites actually work! Who takes them up,how do they get released and what do they actually do while the'yre up there? In simple terms please!

2006-11-05 11:21:22 · 10 answers · asked by Anonymous in Astronomy & Space

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A force of 40.0 N accelerates a 5.0-kg block at 6.0m/s^2 along a horizontal surface. How large is the ....?

A force of 40.0 N accelerates a 5.0-kg block at 6.0m/s^2 along a horizontal surface.

a. how large is the frictional force?
b. what is the coefficient of friction?

Please help me with these questions.
I'm having trouble understanding them.

2006-11-05 11:19:20 · 5 answers · asked by vicky p 1 in Physics

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when will it snow properly in manchester?

2006-11-05 11:19:14 · 7 answers · asked by rbrtdhrty 1 in Weather

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is it true that everest peak is higher each year?

2006-11-05 11:17:54 · 8 answers · asked by Anonymous in Geography

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why is the weather so warm?

2006-11-05 11:17:30 · 14 answers · asked by Andrew T 1 in Weather

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what is the exact value of cos 75 degrees?

2006-11-05 11:17:28 · 6 answers · asked by william r 1 in Mathematics

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Concentration of HCl when it is mixed with NaOH?

What is the concentration of HCl after 10.00 mL of 1.00 M HCl is mixed with 10.00 mL of .500 M NaOH?

I think I need to find the limiting reactant...

.01 L x (1.00 mol HCl/ L) x (1 mol H2O/ 1mol HCL) = .0100 mol H20

.01 L x (0.500 mol NaOH/ L) x (1mol H2O/ 1mol NaOH) =
.005 mole H2O.

So, the LR is NaOH.

What is left over is HCl, but I dont what to do next, or if I am doing right at all.

Thanks for your help.

2006-11-05 11:16:28 · 3 answers · asked by Anonymous in Chemistry

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How do I solve this?

solve for x: x^2-7x= -12

2006-11-05 11:15:27 · 6 answers · asked by Eric 2 in Mathematics

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Ammonia and bleach, does anyone know how long the reaction takes?

before it kills someone? How long before it dissipates from the house? If animals were say in another room or other part of the house would they be safe? I'm asking because my brother-in-law did this the other day by accident, he said he felt the effects before he even raised up from where he poured the mixture, they shut the door to the room and turned on the fan, but we were worried if it had been left un-attended would it have harmed the animals in the house. About a 1200 sq. ft, open area with a full basement, where the cats probably would've hid. So does anyone know? I'd appreciate the info. Thanks.

2006-11-05 11:13:52 · 4 answers · asked by -Tequila17 6 in Chemistry

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how to solve this equation 2x/x^2 - 16 = 2/x^2 - 16 - 1/x+4 ?

2006-11-05 11:13:17 · 7 answers · asked by Kamille J 1 in Mathematics

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Power/Step-up and Step-down transformers?

65kW is to arrive at a town over two 0.100ohm lines. How much power is saved in the voltage is stepped up from 120V to 1200V and then down again, rather than simply transmitting at 120V. (It is assumed that the transformers are 100% efficient).

Thanks in advance!

2006-11-05 11:12:02 · 2 answers · asked by BugGurl 3 in Physics

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