Science & Mathematics - 20 November 2006

Ba(NO3)2 + NH2(SO3)H + H20 ---> Ba(NH2SO3)2 + HNO3

2006-11-20 07:32:41 · 2 answers · asked by shellyeliz 2 in Chemistry

Who came up with the quadratic theory and why?

2006-11-20 07:31:09 · 4 answers · asked by mr yass 2 in Mathematics

2006-11-20 07:31:06 · 8 answers · asked by Hay Hay 1 in Engineering

2006-11-20 07:30:33 · 1 answers · asked by krazy4carz69 1 in Medicine

I have been given the following:

You are to construct and test a variable voltage power supply based on an LM317L three terminal adjustable output voltage regulator. The voltage should be adjustable from 1.2 to 12 volts, using potentiometer built into the breadboard. The test load will be a 12 volt 960 mW lamp.

You will be expected to:
Verify that the transformer supplied for this assignment can supply 15 volts at 6VA by testing it in an appropriate manner (loading).
Construct a bridge rectifier, understand smoothing, and be able to specify the maximum voltage that the smoothing capacitor will have to withstand.

I know it's quite complicated but ... anyway, if anyone knows anything about it or any website which is related to this experiment, please don't hesitate to answer.

2006-11-20 07:29:27 · 2 answers · asked by ne9asi 1 in Engineering

trying to do this for chemistry and I'm royally stuck!!1 Any help would be greatly appreciated!

2006-11-20 07:27:09 · 3 answers · asked by Erin B 1 in Chemistry

How many different combinations of 3 can you make out of the 9 side dishes? The side dishes are salad, cole slaw, beans, fruit, corn, mac & cheese, potato, biscuit, and watermelon.

Show all work and explain how you did it. Is there an easy way to do it?

2006-11-20 07:26:58 · 5 answers · asked by Katey 1 in Mathematics

Anwser quick please! I need to know!

2006-11-20 07:26:30 · 4 answers · asked by Anonymous in Biology

2006-11-20 07:26:03 · 1 answers · asked by embem171 4 in Biology

2006-11-20 07:25:50 · 3 answers · asked by sicofitall325 1 in Astronomy & Space

2006-11-20 07:24:54 · 2 answers · asked by NEAL M 1 in Engineering

2006-11-20 07:24:13 · 3 answers · asked by biggdaddyratt2004 1 in Engineering

2006-11-20 07:21:56 · 6 answers · asked by connie 1 in Astronomy & Space

parents=AA xaa offspring=Aa what is the probability?
parents Aa x Aa offspring=Aa what is the probability?
parents Aa x Aa offspring=aa what is the probability?
parents AaBb x AaBB offspring= AaBB what is the probabilty?
parents AaBb x AaBB offspring=AaBb what is the probability?
parents AaBb x AaBb offspring=AABB what is the probability?

2006-11-20 07:19:20 · 4 answers · asked by Anonymous in Biology

In other words, I have two packets of seeds that I bought a little over a year ago. I soaked them in water overnight and just planted them. Will they grow, or should I go looking for a new packet of seeds?

2006-11-20 07:19:13 · 5 answers · asked by janeowyn180 3 in Botany

2006-11-20 07:19:04 · 8 answers · asked by Anonymous in Chemistry

1-Phenyl-1-chloroethane is a secondary halide. Most secondary halides undergo Sn1 reactions quite slowly. Why does it go faster?

2006-11-20 07:18:23 · 5 answers · asked by kelxcore09 1 in Chemistry

a. time
b. time ^-1
c. liters/mol
d. no units

2006-11-20 07:16:02 · 1 answers · asked by kelxcore09 1 in Chemistry

What affects does the digestion of food have on a human heart rate?

2006-11-20 07:15:37 · 2 answers · asked by MrMan 2 in Biology

I didn't fully understand which my teacher said was worse. Which is worse/more harmful?

2006-11-20 07:14:16 · 4 answers · asked by Anonymous in Biology

Explain how a correctly written equation shows atoms are not lost in a reaction and this is not for school or class this is a question my friend has been asking me with so people shove off with the class jokes.

2006-11-20 07:13:44 · 4 answers · asked by artistmartista 1 in Chemistry

I need a turtle shell for my biology project. I found a dead turtle and i set it in an ant pile. about half of the turtle is gone but all the ants are gone due to the cold weather. does anyone know how to get the turtle out faster.

2006-11-20 07:13:19 · 7 answers · asked by Anonymous in Zoology

I am wondering if there is any that you guys know about that you can make with some household items preferbly in a pop bottle...

2006-11-20 07:11:06 · 6 answers · asked by Curtis W 1 in Engineering

2006-11-20 07:09:53 · 2 answers · asked by labtech 1 in Biology

need to know what current a transforma will draw

2006-11-20 07:09:11 · 7 answers · asked by wayne.qugley@talk21.com 1 in Engineering

In Scientific Terms, Please

2006-11-20 07:06:02 · 7 answers · asked by Gordito 1 in Physics

2006-11-20 07:05:47 · 5 answers · asked by aryan z 1 in Physics

a restaurant owner wants to purchase some new tables, chairs and dinner plates for the dining area of her establisment. she plans to buy 4 chairs and 4 plates for each new table. she also needs 20 additional plates tokeep in case of breakage. if a table cost 100, a chair 50 and a plate 5 how many of each can she buy if she takes out a loan for 6500 to pay for the new items

2006-11-20 07:04:31 · 3 answers · asked by ijenjen3 2 in Mathematics

Just wondering.Is it something to do with the lense in your eye not being able to focus properly or something?

I need to wear glasses because i can't see things far away. How is that different to needing glasses for reading a book or something

2006-11-20 07:02:59 · 7 answers · asked by ? 3 in Other - Science

2006-11-20 07:00:58 · 9 answers · asked by DonePimpin' 1 in Earth Sciences & Geology