Science & Mathematics - 1 November 2006

2006-11-01 13:28:43 · 4 answers · asked by DiAnna S 1 in Geography

2006-11-01 13:27:12 · 10 answers · asked by booger12 1 in Medicine

Science project.

So, I know how much salt it takes to raise water's boiling point by a degree (Celsius). However, I'm curious to know how much grams of sugar will be needed to raise water's boiling point. I know they are going to be different amounts but i'm not very clear why? Also, how many grams of sugar needed per degree?

2006-11-01 13:26:53 · 4 answers · asked by Anonymous in Chemistry

leds will still work but the zenon bulb wont

2006-11-01 13:24:58 · 1 answers · asked by chuck l 1 in Engineering

2006-11-01 13:24:25 · 6 answers · asked by - ѕoичтα. ☮ 4 in Astronomy & Space

i mean most of them are over 20 years old almost 25
and we need to make improvements.

2006-11-01 13:24:12 · 6 answers · asked by Anonymous in Astronomy & Space

Quadruple one fifth of some fraction that is greater than zero. Then, multiply the result by the fraction again to get the product 1\5. What is the fraction?

2006-11-01 13:21:29 · 6 answers · asked by azizka93 3 in Mathematics

Estimate DH for the reaction: C2H6(g) + Cl2(g) ---> C2H5Cl(g) + HCl(g) given the following average bond energies in kJ/mol C-C, 348; C-H, 414; Cl-Cl, 242; C-Cl, 327; H-Cl, 431

a. ) -113 kJ/mol
b. ) -68 kJ/mol
c. ) -102 kJ/mol
d. ) -344 kJ/mol
e. ) 276 kJ/mol

2006-11-01 13:18:01 · 1 answers · asked by Anonymous in Chemistry

2006-11-01 13:17:32 · 3 answers · asked by need the grade 1 in Earth Sciences & Geology

if a person is sitting in a moving car, are they using stored energy, even though they are not using their muscles. besides the usual breathing and living stuff?

2006-11-01 13:17:30 · 4 answers · asked by Anonymous in Other - Science

I was thinking about designing and building a radio controlled submarine for fun but I am wondering if it will be able to pick up radio waves from up to 20 feet under fresh water. If anybody knows anything about this subject I would appreciate some feedback.
thanks, Mike

2006-11-01 13:17:23 · 5 answers · asked by mikeytrav 1 in Physics

2006-11-01 13:17:19 · 3 answers · asked by 'deathspeed' 1 in Mathematics

I've tried the following problem and I keep getting the wrong answer. I'm just hoping someone can help me figure this one out.

In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This can be done with the arrangement shown in Figure P8.67. A light plank rests on two scales that read Fg1 = 450 N and Fg2 = 310 N. The scales are separated by a distance of 2.00 m. How far from the woman's feet is her center of gravity?

Thanks a lot guys!

2006-11-01 13:16:56 · 5 answers · asked by Anonymous in Physics

Which one of the following molecules has a dipole moment?

a. ) PbCl4
b. ) CS2
c. ) PF5
d. ) F2O
e. ) BF3

2006-11-01 13:16:54 · 1 answers · asked by Anonymous in Chemistry

What are the steps that I need to do in order to get an answer?

2006-11-01 13:15:33 · 8 answers · asked by blue_dumb_fun 1 in Mathematics

If the kids were on Heroin, cocain etc, and not ritilin,
it would be splashed and touted everywhere with "just say no!"

Shouldn't kids just say no to legal drugs too?

And why don't we ever hear about the early lawsuits against antidepressant manufacturers which sited a strange side effect of homicidal attacks and suicidal behavior?

I guess threat of a pharmaceutical lawsuit is more important than good journalism and the truth.....

2006-11-01 13:14:54 · 3 answers · asked by Anonymous in Medicine

2006-11-01 13:14:04 · 1 answers · asked by Annie1313 1 in Mathematics

2006-11-01 13:13:13 · 12 answers · asked by over_here_electric 1 in Mathematics

What is a website that compares and contrasts these two processes?

2006-11-01 13:08:29 · 3 answers · asked by Slugbug13 3 in Biology

1. most stars are ________________________ stars.
2. in the late stages of their cycle,stars can expand to become____________ or___________
3. a _______ is a star that has contracted after using its supply of helium.


i lost my book and i hv a test tomorrow please can u help me !

2006-11-01 13:07:35 · 3 answers · asked by hello 3 in Astronomy & Space

I have a math project due tomorrow, and it involves using geometer's sketchpad to create a halloween picture, using at least 10 functions. If anyone of you is good at math, can you please please help me. I have already made an acceptable witch that will get me some marks. I need to make a cauldron beside her, but I do not know what equation to use. It needs to be on the left, since she is on the right..I need this equation very badly. SOMEONE PLEAAASSSSSSSEEEEE HELP ME!!!!

2006-11-01 13:06:15 · 4 answers · asked by Bootylicious 1 in Mathematics

example -45 - -34= 35 - -44=

2006-11-01 13:05:39 · 11 answers · asked by joey m 1 in Mathematics

I'v tried to figure out why this wouldn't work but I don't Know enough math so here goes. If you were to take a chamber filled with water and put a float at the bottom conected to an arm to capture the energy of the rise up the chamber you would have one equation for the amount of power created.
Next you push the object over (possibly still floating) then close off the chamber so you don't have more water loss. Next you would let the object fall, Maybe connected to a pump to fill the water chamber back up.
I know all the power that you get from the fall needs to go back to filling the chamber plus some of the power from the boyancy because of inefficiencies but it seems that my outher two actions of moving my weight-float back and forth would not use all the power that could be created.
The reason I think this might work is because you kind of turn gravity sideways. all the water wheals that I could find kept everything submurged and did not remove it from the water midum.

2006-11-01 13:04:22 · 4 answers · asked by John K 1 in Physics

2006-11-01 13:02:23 · 4 answers · asked by badmf777 1 in Mathematics

(1.) Papa's Pizza offers a party $4 per child with a $40 fee for the cake and playground supervisor. write and solve an inequality that shows the number of children who can attend on a $76 budget.

(2. )The Valley Inn charges $17.50 per person and a $100 service fee. Write an inequality that shows the number of persons who can attend a wedding reception on a $1500 budget.

2006-11-01 13:01:07 · 5 answers · asked by Anonymous in Mathematics

Events have a cause and effect. We live, we are informed, in the effect; what therefore caused it all?

2006-11-01 12:59:44 · 6 answers · asked by Richard H 1 in Astronomy & Space

what two goverments do you have to deal with and get permission from in order to climb mt. Everest. Please help me answer this question. Please answer that first and then tell me what it is called. I WILL choose you as the best anwser if you answer both of those questions!

2006-11-01 12:57:33 · 4 answers · asked by Answerfinder1360 5 in Geography

Hoiw do you balance the following equation?

NaCl+H20So4=NaSo4+HCl

2006-11-01 12:55:00 · 6 answers · asked by omar v 1 in Chemistry

the functions of this cellulose inhuman digestion.

2006-11-01 12:53:00 · 3 answers · asked by Levan 1 in Biology

2006-11-01 12:52:28 · 6 answers · asked by reepecheep555 1 in Biology