Science & Mathematics - 2 February 2007

The circuit in the drawing contains five identical resistors. The V = 45 V battery delivers 44 W of power to the circuit.

http://www.webassign.net/CJ/p20-63.gif

I've been struggling with this one for several hours now and still cannot solve it. Can anyone give a concise and clear explanation of how to arrive at the correct answer? I'd really appreciate it.

2007-02-02 13:21:10 · 4 answers · asked by larkinfan11 3 in Physics

2007-02-02 13:20:25 · 5 answers · asked by Anonymous in Chemistry

2007-02-02 13:19:37 · 2 answers · asked by Anonymous in Other - Science

2007-02-02 13:19:06 · 4 answers · asked by casaouia 2 in Other - Science

Which of the following statements about membrane structure and function is false?
a. Diffusion, osmosis, and facilitated diffusion do not require any direct energy input from the cell.
b. Special membrane proteins can cotransport two solutes by coupling diffusion down one concentration gradient to transport against another concentration gradient.
c. Diffusion of gases is faster in air than across biological membranes.
d. The types of proteins that are exposed on one side of a membrane are nearly identical to those exposed on the other side of the same membrane.

2007-02-02 13:17:33 · 2 answers · asked by Anonymous in Biology

Does anyone know where I can find a solution guide to Algebra Structure and Method: Book 1?

2007-02-02 13:16:54 · 5 answers · asked by Don W 1 in Mathematics

It's defintly not something you just want to sit back and chill about. is there any one out there besides me that actually wants to help the world?

2007-02-02 13:16:40 · 10 answers · asked by bLb 1 in Earth Sciences & Geology

2007-02-02 13:16:01 · 2 answers · asked by Anonymous in Earth Sciences & Geology

All of the following membrane activities require energy from ATP except:
a. active transport
b. facilitated diffusion
c. proton pumps
d. translocation of K+ into a cell

2007-02-02 13:13:34 · 5 answers · asked by Anonymous in Biology

You are pulling your sister on a sled to the top of a 15.0 m high, frictionless hill with a 10.0° incline. Your sister and the sled have a total mass of 50.0 kg. You pull the sled, starting from rest, with a constant force of 127 N at an angle of 45.0° to the hill. If you pull from the bottom to the top, what will the speed of the sled be when you reach the top?

2007-02-02 13:13:14 · 2 answers · asked by xiuhcoatl 1 in Physics

how do i convert L into mol

for example 0.3L water in mol

2007-02-02 13:00:41 · 2 answers · asked by Anonymous in Chemistry

5/12=0.????

2007-02-02 12:58:05 · 24 answers · asked by ALESANA 7 in Mathematics

...And explain how it works? Thanx

2007-02-02 12:57:32 · 7 answers · asked by Anonymous in Botany

This is the alternative question to Irish Dubliner's original.

A company wishes to lay a cable all the way round th Earth's equator which we will assume is exactly 40,000km. However, the cable is 34.54m too short. A simple solution to this problem is to move the cable a certain amount north or south of the equator so that the cicumference is a little shorter. But how much (either way) should the cable be moved so that it can join up around the circumference of the Earth? (Assume the Earth to be a perfect sphere).

2007-02-02 12:57:14 · 5 answers · asked by brainyandy 6 in Mathematics

2007-02-02 12:56:24 · 8 answers · asked by Paul C 2 in Engineering

2007-02-02 12:53:42 · 3 answers · asked by zil28ennov 6 in Zoology

Why do they make my hair a certain color or my nose a certain shape? WHY WHY WHY?

2007-02-02 12:51:30 · 6 answers · asked by Anonymous in Biology

how cold is 51 degrees fahrenheit? how cold is 45 degrees fahrenheit? are any of the degrees to cooled to go to a outdoor concrete skatepark to skateboard. can you wear shorts or wear long baggy shorts that are past your knees. with a big long shirt.

2007-02-02 12:51:20 · 9 answers · asked by Anonymous in Weather

2007-02-02 12:50:32 · 2 answers · asked by ch 1 in Mathematics

2007-02-02 12:48:48 · 7 answers · asked by Anonymous in Astronomy & Space

I had a converstation with one of my customers today about how nano technology is going to change our future. What does this mean to you? I'm not very familar with it at this point in time.

2007-02-02 12:46:16 · 4 answers · asked by Lizzy 2 in Physics

That is, that there are an infinite number of universes, many of which have copies of us doing different things (i.e. in one universe, I am a Christian...uggg! - while in ANOTHER universe, I am a Buddist priest, and in a third I am a Hare Khrisna, etc., etc...)

2007-02-02 12:44:55 · 8 answers · asked by Anonymous in Physics

2007-02-02 12:38:23 · 1 answers · asked by Ian R 1 in Weather

who confirms supreme court justices?

2007-02-02 12:38:06 · 9 answers · asked by lily2001125 2 in Geography

I'm having trouble starting this problem.
Please help me.

2007-02-02 12:37:53 · 2 answers · asked by vicky p 1 in Physics

But here goes nothing:

My boyfriend's eyes are such a weird shade of blue that they're actually maroon. I though that this was impossible until I met him. He told me it was due to a benign mutation in his genetic code. What happened to his DNA that made his eyes come out that color?

2007-02-02 12:37:19 · 5 answers · asked by hottie_spaniard 2 in Biology

2007-02-02 12:37:00 · 7 answers · asked by schoolteacher2006 1 in Mathematics

brilliant red, green,purple,and white

2007-02-02 12:36:42 · 4 answers · asked by deborah g 1 in Botany

what cabinet- level agency advices the president on foreign policy ?

2007-02-02 12:34:29 · 8 answers · asked by lily2001125 2 in Geography

SIXTY-TWO
5
19
8
SEVENTEEN
=

WHATS THE ANSWER

2007-02-02 12:33:00 · 6 answers · asked by PJ 2 in Mathematics