Science & Mathematics - 15 November 2007

2007-11-15 08:16:54 · 11 answers · asked by valkyrie_missile_uk 1 in Geography

3 x (2 x n + 17) - 51 = 4 x n - 44

please make sure your math is correct

2007-11-15 08:12:21 · 5 answers · asked by ktunkers 2 in Mathematics

A battery is connected to a series circuit with a resistor and an inductor.
1.) If the voltage of the battery is 110 V, the inductance of the inductor is 0.8 henry and the resistance of the resistor is 150 ohms determine a DE

2.) Solve the DE and receive math model for the current I if the initial current was zero.

3.) Predict the value of the current at time 0.6 seconds.

2007-11-15 08:11:09 · 4 answers · asked by Jaylen R 1 in Mathematics

2007-11-15 08:10:56 · 7 answers · asked by leigh d 1 in Weather

a. (t^2-9)(t^2-9)
b.(t-3)^2(t+3)^2
c.(t-3)(t+3)^2
d.(t-3)(t+3)(t^2+9)

2007-11-15 08:10:27 · 6 answers · asked by BabyGirl82985 1 in Mathematics

(2radical6)(5 radical3)


I don;t really understand how to do radicals so could you explain how you did it?

2007-11-15 08:09:46 · 4 answers · asked by Anonymous in Mathematics

Elemental ananalysis of a compound results in the following data

40.00 % C

6.71 % H

53.28 % O



3.60 g of the compound fills a 190.0 ml bottle with a pressure of 3871.1 mm Hg at a temperature of 21.7oC. What is the molecular formula of this compound ?

2007-11-15 08:08:55 · 2 answers · asked by sovietwarhawk 1 in Chemistry

I need to write a 2 page paper on gravity (relating to physics)
can someone please help me out with this.... can someone direct me to some sites anything that will help me i really need help on this.... anyone know where i can get the whole paper from ..? Thanks in advanced ...

2007-11-15 08:03:52 · 1 answers · asked by Anonymous in Physics

I was having a conversation and my friend said that wombats are called beavers in the winter? Is this True?

2007-11-15 08:03:29 · 6 answers · asked by Anonymous in Zoology

multiply using teh vertical method.

(m^2-5mn+3n^2 )(m^2+4mn-2n^2)

2007-11-15 08:03:05 · 1 answers · asked by God Bless America!~ 4 in Mathematics

2007-11-15 08:00:37 · 13 answers · asked by Josh S 1 in Agriculture

This is for my science project.

2007-11-15 07:58:57 · 10 answers · asked by skillz 1 in Zoology

2007-11-15 07:58:53 · 6 answers · asked by Anonymous in Mathematics

thanks for help other hope you all will answer for it as well soon. thanks again and plz give answer of yhis asap/

2007-11-15 07:57:20 · 2 answers · asked by Anonymous in Mathematics

2007-11-15 07:55:21 · 3 answers · asked by Anonymous in Chemistry

Hi could anyone please help me relate the structure to function of the mitochondria please, also does anyone know the importance of the mitochondrion reproducing independantly of the cell in which it is found.

Any help is greatfully recieved. thankyou

2007-11-15 07:50:12 · 4 answers · asked by Anonymous in Biology

A jet of water squirts out horizontally from a hole near the bottom of the tank. The water shoots out .546 m from the tank and the water tank is held on a pedastol that is 1.28 m above the ground. What is the speed of the water coming out of the hole?


The second part is The hole has a diameter of 3.63 mm. What is the height of the water level in the tank?

2007-11-15 07:50:09 · 1 answers · asked by jULIAN C 2 in Physics

what are they wat do they do.

2007-11-15 07:45:49 · 1 answers · asked by juiced50 2 in Biology

Prove that the Newton-Raphson sequence for the equation f(x)=(x-1)^2=0 converges for every real initial guess. Does the result still hold if the initial guess is a complex number?

2007-11-15 07:45:16 · 3 answers · asked by David C 1 in Mathematics

or any other good facts about neptune...?

2007-11-15 07:44:32 · 6 answers · asked by Anonymous in Astronomy & Space

:)

2007-11-15 07:44:28 · 4 answers · asked by Anonymous in Astronomy & Space

I mean earth go bye-bye..

2007-11-15 07:42:06 · 20 answers · asked by lorddad7 2 in Astronomy & Space

The standard heat of formation of CaBr2 is -675 . The first ionization energy of Ca is 590 and its second ionization energy is 1145 . The heat of sublimation of Ca is 178 . The bond energy of Br2 is 193 , the heat of vaporization of Br2 is 31 , and the electron affinity of Br is -325 .

2007-11-15 07:41:57 · 5 answers · asked by Suker 1 in Chemistry

i need a rap about prime numbers from 1-50.
please please please at least try to help me!
thanks a lot!
10 points easy!
=] =] =]

2007-11-15 07:41:15 · 16 answers · asked by Anonymous in Mathematics

The point of the graphp of f(x)=x^2+4*x-14 at which the tangent line is perpendicular to teh line y=5*x-15 is (_____, _____)

2007-11-15 07:41:08 · 2 answers · asked by ws 3 in Mathematics

Cu(s) + AgNO3 (aq) --> Cu(NO3) (aq) + [ ]

2007-11-15 07:40:42 · 1 answers · asked by Margaret T 1 in Chemistry

Everyone knows the saying 'Two wrongs don't make a right', yet in mathematics, the product of two negative values equals a postive value. I would really like to know if anyone knows the theory/concept behind this. Please explain as detailed as possible.

2007-11-15 07:37:48 · 14 answers · asked by A 3 in Mathematics

2007-11-15 07:36:52 · 16 answers · asked by jdaws9876 1 in Mathematics

2007-11-15 07:36:37 · 2 answers · asked by lindar 2 in Biology

2007-11-15 07:35:54 · 2 answers · asked by Anonymous in Zoology