Science & Mathematics - 29 November 2007

12k(1/4k^2-2/3)(k^2+1) How would I solve this using the foil method with fractions?

2007-11-29 09:01:25 · 2 answers · asked by Anonymous in Mathematics

i only need 1 more information for my project plz help me find the watershed of the nile river. also if u know wat link the info i on plz give it to me thanks!!!!! al0t!!! ( can't use wikipedia )

2007-11-29 09:00:54 · 7 answers · asked by pikachu 1 in Geography

Marine biology or zoology

2007-11-29 08:58:08 · 3 answers · asked by T Parent 2 in Zoology

(A) The field is uniform.
(B) The field increases in strength as the
distance from the wire increases.
(C) The field lines are directed parallel to the
wire, but opposite to the direction of the
current.
(D) The field lines are directed radially
outward from the wire.
(E) The field lines form circles about
the wire.

2007-11-29 08:57:50 · 3 answers · asked by Jacob L 1 in Physics

I'm doing a project for science and I have to describe what a pressure belt is. We are studying Winds right now.

2007-11-29 08:55:11 · 5 answers · asked by Bridget N 1 in Weather

Theres a triangle and the lines keep going, and I have to find the sum of the measures of the marked angles, which are vertical too the verticies

2007-11-29 08:54:43 · 5 answers · asked by Konstantin 3 in Mathematics

help!

2007-11-29 08:54:24 · 4 answers · asked by lalalala 5 in Biology

what is the name of tht deepwater fish with a light on its head it was on finding nemo i think

2007-11-29 08:53:23 · 18 answers · asked by Craigielad 1 in Zoology

2007-11-29 08:51:47 · 13 answers · asked by Anonymous in Mathematics

2007-11-29 08:44:17 · 9 answers · asked by Maryam M 3 in Astronomy & Space

what is the balanced total ionic and net ionic equations for the reaction of Zn(s) + 2HCl(aq) yeilds H2(g) + ZnCl2(aq)

2007-11-29 08:43:58 · 1 answers · asked by bldeitz 1 in Chemistry

Three identical pendulum clocks have pendulums of equal length L = 25cm.
Two clcoks A and B are located at two stations connected by straigh railroad track, at distance
D = speed of light x 1/2 hour, and are always syncronized (in motionless frame).

The third clock C is aboard a train moving at constant speed c/2. When the train is passing station A, engineer syncronizes clock C to clock A.

What is the differece between clocks B and C, when the train passes station B 1 hour later?

2007-11-29 08:42:03 · 3 answers · asked by Alexander 6 in Physics

2007-11-29 08:41:11 · 3 answers · asked by Todd G 1 in Zoology

2007-11-29 08:40:44 · 1 answers · asked by Anonymous in Physics

a hill is 109.2 m long and makes an angle of 12.99 degrees with the horizontal. as a 54.5 kg jogger runs up the hill, how much work does gravity do on the jogger?

2007-11-29 08:40:41 · 1 answers · asked by Big K 2 in Physics

2007-11-29 08:40:30 · 4 answers · asked by Anonymous in Mathematics

You have quarters dimes and nickels in a jar. There are twice as many quarters as nickels. Write an expression for the number of coins in the Jar. In terms of nickels and dimes. CAn you plz give me the answer i would really apreciate it

2007-11-29 08:38:54 · 2 answers · asked by rynoxmanedge 1 in Mathematics

2007-11-29 08:34:15 · 3 answers · asked by Anonymous in Mathematics

...was a quadraped carnivor. It had a lightly armored back and lived way before the Jurassic.

Anyone know? I think its starts with P- and ends in -kus or -cus.

2007-11-29 08:32:35 · 2 answers · asked by Steve 2 in Zoology

Question: Galileo discovered the four major moons of the planet Jupiter in 1610. The nearest one, Io, has a period of 1.7699 days and is 5.578 Jovian radii (Radius of Jupiter) from the center of the planet. Use this data (not from your book's table of planetary information) to calculate the density of Jupiter.

Okay, I've discovered that the Period in seconds is 152919.36 seconds.

Here are some relevant equations:
Density= Mass/volume
Volume= (4/3)*pi*r^3
Period^2=((4*pi^2)/(G(Mass of Jupiter)))*r^m

I know I need to figure out what the Mass of Jupiter is and the radius of Jupiter too. In addition, I need to then find the mass and volume in order to get the density.

Please help me if possible, any information is greatly appreciated!

2007-11-29 08:31:16 · 2 answers · asked by Anon. 2 in Physics

2007-11-29 08:29:28 · 5 answers · asked by Anonymous in Mathematics

I have maths coursework for tommorrow, but i really cant remember how to draw them, please help!

2007-11-29 08:28:45 · 3 answers · asked by Mind Blank 2 in Mathematics

1) A person weighs 612 N. If this person sits in the middle of a hammock that is 3.0 m long and it sags 1.0 m below the points of support, what force would be exerted by the two hammock ropes.
a. .005 N
b. 204 N
c. 459 N
d. 918 N

2) a stone is thrown horizontally at 10 m/s from the top of a cliff 50 m high. how far from the base of the cliff will it land?
a. 3.4 m
b. 10.2 m
c. 34 m
d. 102 m

3) a soccer player kicks a ball in to the air at an anle of 32 degrees above the horizontal. the initial velocity of the ball is +26.0 m/s. how long is the soccer ball in the air?
a. 0.11 s
b. 1.4 s
c. 2.6 s
d. 2.8 s

2007-11-29 08:28:13 · 3 answers · asked by Anonymous in Physics

The Four winged fruit fly
Haeckel's embryo diagrams
Finch beaks in the galapagos islands
antibiotic resistant bacteria
fossil records
tree of life
ect...

2007-11-29 08:25:26 · 11 answers · asked by lizzie bizzie 1 in Biology

I find myself looking at the clock at this exact time at least 2x a week, what could this mean?

2007-11-29 08:22:31 · 8 answers · asked by Anonymous in Mathematics

Given January 1
st
, 2007 fell on a Monday, which day of the week will occur most
frequently in 2009?

2007-11-29 08:22:24 · 2 answers · asked by Helo P 1 in Mathematics

2007-11-29 08:14:39 · 1 answers · asked by Anonymous in Physics

Then they can have a sea in the middle of a desert!

2007-11-29 08:14:02 · 5 answers · asked by xwheres_homex 2 in Earth Sciences & Geology

I am not sure how to do this. If you could please just explain the steps, I am sure I can figure it out. Thank you in advance for your help.

2007-11-29 08:13:58 · 8 answers · asked by Anonymous in Mathematics

want to fine web site for these 100 ton cranes

2007-11-29 08:11:04 · 1 answers · asked by ARTHUR A 1 in Engineering