Science & Mathematics - 6 November 2007

In a series L-R-C circuit, the components have the following values: L=20.0 mH C=140 nF, and R=350ohms. The generator has an rms voltage of 120 V and a frequency of 1.25 kHz.

1) Determine the average power supplied by the generator.

2)Determine the average power dissipated in the resistor.

I can't seem to find help on this from the book so can someone please eloborate.?

2007-11-06 13:15:05 · 5 answers · asked by frozenlint 2 in Physics

Anyone know or have any educated guesses? I find this to be very interesting.

2007-11-06 13:12:47 · 2 answers · asked by Anonymous in Biology

I was watching "Biggest Loser"...and they've lost around 800lbs. If everything stays on the earth...what does that weight (fat etc) become once it's not on the person?. (please don't say it goes in the toilet) I mean when you exercise etc and lose it. Does it become something else?

2007-11-06 13:11:12 · 11 answers · asked by Deenie 6 in Other - Alternative

If 479 is a composite number, please tell me the factors.
(no decimals if you are confused)

2007-11-06 13:10:34 · 13 answers · asked by Tiffany 2 in Mathematics

2007-11-06 13:10:10 · 7 answers · asked by Anonymous in Weather

would chipping through what attaches the contients to the earth's core turn them into free floating islands?

2007-11-06 13:09:28 · 3 answers · asked by kelleygaither2000 1 in Earth Sciences & Geology

i aways wat to know that!

2007-11-06 13:08:54 · 7 answers · asked by Anonymous in Astronomy & Space

I need to know what is the right name for Heparin. I think that it is Hep-lock, and my classmates think it is calciparine or lovalox. Please let me know asap!

2007-11-06 13:07:34 · 7 answers · asked by webbs301 2 in Medicine

Which individual would earn more annually?

2007-11-06 13:07:21 · 3 answers · asked by Jamaican Dime 1 in Medicine

Which is a counterexample of the following conditional:
“If a number is divisible by three, then it is odd.”

1

3

6

9

2007-11-06 13:02:51 · 4 answers · asked by Anonymous in Mathematics

Tell me everything you know about clouds and how they form.

2007-11-06 13:01:12 · 4 answers · asked by Huy The Azn Boy 2 in Weather

2007-11-06 12:58:08 · 1 answers · asked by jessiebabie824 2 in Mathematics

Ok, i fully understand the formula and how to apply it, its simple actually. The only thing i do not get is how to find an end point when a mid point and 1 end point is given algebracially using the middpoint formula?

if (4,3) is the mid point and (0, -4) is the end point, what is the toehr end point?

2007-11-06 12:57:36 · 8 answers · asked by Anonymous in Mathematics

I stink at math and need to compare tree sizes, help appreciated, Thanks :)

2007-11-06 12:56:42 · 6 answers · asked by notAminiVANmama 6 in Mathematics

C5H12(l) + 8 O2(g) --> 5CO2 (g) +6 H2O (g)

calculate delta Hrxn for this reaction using standard enthalpies of formatio (The standard enthalpy of formation of liquid pentane is -143.8kJ/mol)

2007-11-06 12:56:14 · 1 answers · asked by Anonymous in Chemistry

2007-11-06 12:53:51 · 2 answers · asked by Jorge E 2 in Chemistry

OTHER THAN: sterilizaiton, anethesia, lobotomy

2007-11-06 12:50:33 · 10 answers · asked by brucelee135 1 in Medicine

2007-11-06 12:50:25 · 2 answers · asked by cyndic00613 1 in Geography

please help me with the question.thanks!!

2007-11-06 12:49:25 · 5 answers · asked by ninz.07 1 in Physics

2007-11-06 12:48:26 · 22 answers · asked by Anonymous in Earth Sciences & Geology

And lipids, carbohydrates, and nucleic acids.

2007-11-06 12:48:24 · 4 answers · asked by Anonymous in Biology

the combustion of CACO3 gives CaO + CO2
how many grams of CO2 are produced in the decompotition of 1 gram of CACO3?

2007-11-06 12:46:12 · 3 answers · asked by espiral 2 in Chemistry

A small island is 2 miles from the nearest point P on the straight shoreline of a large lake. If Alice, who is on the island, can row 3 mph and walk 4 mph, how far down the shore from P should she land the boat in order to arrive at a town 10 miles down the shore from P in the least amount of time. Show your work.

2007-11-06 12:41:23 · 1 answers · asked by RedBirdNation 2 in Mathematics

what is a common factor

2007-11-06 12:40:59 · 7 answers · asked by Madeline S 1 in Mathematics

Was the vampire bat named after the vampire or was the vampire named after the vampire bat? Any help would be greatly appreciated.

2007-11-06 12:39:11 · 10 answers · asked by Trikip 1 in Zoology

1.A truck traveling at a constant rate of 45 miles per hour leaves Middletown. One hour later a car traveling at a constant rate of 60 miles per hour also leaves Middletown traveling in the same direction on the same highway. How long will it take for the car to catch up to the truck, if both vehicles continue in the same direction on the highway?

2.Ben had twice as many nickels as dimes. Altogether, Ben had $4.20. How many nickels and how many dimes did Ben have?

3.Vincent has cut three pieces of rope to complete a science project. Two pieces are of equal length. The third piece is one-quarter the length of each of the others. He cut the three pieces from a rope 54 meters long without any rope left over. Find the number of meters in each piece.

2007-11-06 12:36:24 · 7 answers · asked by katiekcat5 3 in Mathematics

how do you figure out of this is a parallel line
in y=mx+b form

-4 = y + 2x
6x + 3y = 4

thank you!

2007-11-06 12:36:03 · 4 answers · asked by Anonymous in Mathematics

A flat uniform circular disk (radius = 5.56 m, mass = 140 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 49.0-kg person, standing 1.46 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.00 m/s relative to the ground. Find the resulting angular speed (in rad/s) of the disk.

2007-11-06 12:35:44 · 1 answers · asked by sweet_dreams 1 in Physics

I will give best answer whoever can balance this equation first

Cu + HNO3 ---> Cu(NO3)2 + NO + H20

P.S. everything is the way its suppose to be

2007-11-06 12:33:14 · 4 answers · asked by Anonymous in Chemistry

Evaluate the expression.

7 tan 360° + 6 csc 270°

2007-11-06 12:32:04 · 2 answers · asked by Brick Top 1 in Mathematics