Science & Mathematics - 28 December 2006

2006-12-28 15:23:33 · 13 answers · asked by Anonymous in Engineering

2006-12-28 15:23:10 · 8 answers · asked by mjquinn81 1 in Astronomy & Space

take into account fossil fuels will most likely run out in about 80 to a 100 years and the worlds population will be phenomenal and that is a lot of people per square mile

2006-12-28 15:22:18 · 24 answers · asked by Anonymous in Other - Science

On heating 5.03 g of hydrated barium chloride, 4.23 g is left behind. What is the name of this hydrate?

2006-12-28 15:20:59 · 2 answers · asked by pandalover 1 in Chemistry

2006-12-28 15:20:48 · 10 answers · asked by Anonymous in Astronomy & Space

2006-12-28 15:20:19 · 4 answers · asked by Anonymous in Physics

a large.about the size of a mansion.silver saucer shaped craft hovering a few hundred feet above this building.in daytime.have you seen any?

2006-12-28 15:19:55 · 11 answers · asked by Anonymous in Astronomy & Space

2006-12-28 15:15:36 · 3 answers · asked by sel98 1 in Engineering

can you please explain...pH in water and soil, pH in general, and bases and acids?
this is for an exit project and i really don't comprehend the general idea behind the whole thing. I have research that i don't understand or can't make into my own words....please help me!
oh, and you can choose to just help me with one part, but i just really need help!
thank you SO MUCH!!!

2006-12-28 15:14:37 · 9 answers · asked by alex wolfgang black 2 in Chemistry

it may not actually be possible but I'm curious

2006-12-28 15:13:25 · 2 answers · asked by Anonymous in Chemistry

2006-12-28 15:10:02 · 9 answers · asked by shortycupcake_ci 2 in Weather

Ex. (x-1)sq=12(y-1) Identify the coordinates of the vertex and focus, the equations of the axis of symmetry and directrix, and the direction of the opening of the parabola with the given equation. then find the length of the latus rectum and graph the parabola. PLZ SOMEONE WHO CAN DO THIS PLZ I SWAER THIS MEANSS SO MUCH PLZ

2006-12-28 15:08:29 · 6 answers · asked by help me!!! 1 in Mathematics

2006-12-28 15:08:05 · 4 answers · asked by Steenskees 2 in Chemistry

2006-12-28 15:07:58 · 4 answers · asked by Steenskees 2 in Physics

2006-12-28 15:07:06 · 7 answers · asked by bacamacaamaca 1 in Astronomy & Space

Is there any sensors like stickers that can sense our finger movement and report the corresponding movement to my hand held device. If not can any one give me the technlolgy for wireless finger movement sensor. Is hall effect sensors works under these conditions.

2006-12-28 15:06:18 · 2 answers · asked by myvsarun 1 in Engineering

It says "determine whether each trinomial is a perfect square trinomial. If so, factor it.

1. m^2+16m+64
2.9s^2-6s+1

What does it mean when to determine whether each trinomial is a perfect square trinomial?

2006-12-28 15:05:11 · 3 answers · asked by baseballman1243 1 in Mathematics

Completely new to telescope viewing so please don't laugh, but are certain planets easier to view (clearer) depending on the month? i.e., due to it's location on the horizon, etc.

For instance, due to houses and trees in the way certain parts of the horizon are difficult to see, so I'm wondering depending on the earth's rotation or axis (not sure using right words here) that Saturn may be further from the horizon and more center sky during certain months than others.

2006-12-28 15:04:00 · 6 answers · asked by Genie♥Angel 5 in Astronomy & Space

Whats the best way to survive a fairly short drop (anywhere between 1-4 stories) with no injury?

2006-12-28 15:03:26 · 8 answers · asked by Anonymous in Physics

there all different but idk how

2006-12-28 15:02:56 · 6 answers · asked by Flordia_Grl 1 in Weather

like in that criss angel episode?

2006-12-28 15:02:36 · 6 answers · asked by TheApocalypticOrgasm 6 in Other - Science

2006-12-28 14:57:28 · 6 answers · asked by NARENDER J 1 in Physics

2006-12-28 14:56:17 · 16 answers · asked by murderage 1 in Mathematics

I'm am in a independent study class, i can't seem to firgure out these questions. They are all related to each other, or are of the same lesson. The first person to answer these questions correctly gets 10 points. I have the answers I just need a better explaination so I understand them better.

1. The mellowmusic CD had nine songs on it. How many ways can you select three of the nine songs to listen to if order doesn't matter? (Find the number of combinations of nine songs taken three at a time.)

2. Dave also plays volleyball. For his team, he needs four men and three women, including substitutes. There are eight men and six women who want to play. In how many different ways can he choose a team?

3. How many seven digit telephone numbers are possible if there are no restrictions on the digits you are allowed to choose?

2006-12-28 14:54:59 · 5 answers · asked by dallin.harmon 1 in Mathematics

2006-12-28 14:53:53 · 2 answers · asked by interesting news 1 in Medicine

2006-12-28 14:53:18 · 13 answers · asked by Pradeep G 1 in Physics

Complete the word equation
Then write the balanced equation.
27. calcium + oxygen >>>>
28. copper(II) carbonate>>>>
29. aluminum + hydrochloric acid >>>>
30. potassium iodide + chlorine >>>>
31. barium chloride + sodium sulfate >>>>
32. copper + silver nitrate >>>> copper(II) nitrate +
33. barium hydroxide + sulfuric acid>>>>
34. zinc sulfate + ammonium sulfide>>>>
35. sodium + water >>>>
36. magnesium + sulfuric acid >>>>
37. Mercury(II) oxide >>>>

2006-12-28 14:53:08 · 1 answers · asked by truckin_90 2 in Chemistry

In a project, I have to prepare zinc stock solution with pH 4,5 n 6. But then my supervisor said that I have to use buffer instead of just adding NaOH and HCl. So, how can I prepare buffer?

2006-12-28 14:52:46 · 2 answers · asked by L*ime 1 in Chemistry

I have heard this in intelligent conversations with both a genetic researcher and a doctor - people who would know what they're talking about on a subject like this. They were both fairly adamant that it has been found that 1 in 10 people are predisposed to be "gay" or homosexual.

The numbers seem to make sense, but would any intelligent folks care to elaborate on this?

Are there actually reliable statistical results out there that prove that 1 in 10 of us is homosexual?

PLEASE KEEP THIS AS SCIENTIFIC AND RESPECTFUL AS POSSIBLE.

2006-12-28 14:52:08 · 18 answers · asked by Jape Coyote 2 in Biology

I'm trying to determine how to judge the parts per million(ppm) using time, voltage, surface area of the silver rods and the amount of water

2006-12-28 14:51:28 · 2 answers · asked by Anonymous in Medicine