Science & Mathematics - 28 January 2007

there in the big dipper?

2007-01-28 09:03:52 · 4 answers · asked by Eric the Great *USA* 4 in Astronomy & Space

2007-01-28 09:03:28 · 4 answers · asked by Anonymous in Physics

Wasn't the tsunami of 2005 in the indian ocean created by an earthquake some place else? Please answer my question above.

2007-01-28 09:00:46 · 4 answers · asked by Anonymous in Earth Sciences & Geology

Barbara invests $2,400 in the national bank at 5%.
How much additional money must she invest at 8%
so that the total annual income will be equal to 6% of her entire investment?

$1200
$3000
$1000
$3600
$2400

2007-01-28 09:00:22 · 2 answers · asked by devincr 1 in Mathematics

how many ounces of soy sauce must be added to an 18-ounce mixture of peanut sauce and soy sauce consisting of 32% peanut sauce in order to create a mixture that is 12% peanut sauce?

21
24 3/4
26 2/3
30
38 2/5

2007-01-28 08:58:15 · 5 answers · asked by devincr 1 in Mathematics

A) plants
B) eukaryotes
C) prokaryotes
D) cyanobacteria
E) cellular respiration

it has to be one of those ;D

2007-01-28 08:57:31 · 3 answers · asked by Anna 1 in Biology

Now the question is not wether or not backward time travel is possible, the question is:
Hypothetically, Suppose backward time travel were possible. Some say just the fact you are in the past implies changing it. But others believe it does not imply changing it. See this following link and say wether you agree or not. It is about a debate, and one fo the persons say that being in the past doesn´t mean you will change it.
www.sfu.ca/philosophy/swartz/time_travel1.htm

2007-01-28 08:57:27 · 12 answers · asked by noname 1 in Astronomy & Space

performing hypothesis testing

determining relations among variables

collecting and organizing data

generalizing from samples to populations

all of these are parts of inferential statistics

2007-01-28 08:57:02 · 3 answers · asked by chris 2 in Mathematics

2007-01-28 08:54:01 · 8 answers · asked by Anonymous in Weather

2007-01-28 08:53:17 · 4 answers · asked by april 1 in Earth Sciences & Geology

2007-01-28 08:51:26 · 6 answers · asked by Someone Somethingson 1 in Biology

thanks

2007-01-28 08:51:01 · 4 answers · asked by jk_haha_04 1 in Chemistry

do you think they (the animals) have finally had enough of us eating them and making belts and shoes and such from them? As for me I've taken to carrying different animal feeds in my vest pockets and am trying to make friends with all the animals I encounter. Do you think it will help me survive an attack?

2007-01-28 08:50:24 · 4 answers · asked by zp055att 6 in Zoology

2007-01-28 08:50:20 · 2 answers · asked by Rhinorm 2 in Mathematics

I used 10 000 watts a day. I want to buy a 480 watt system. how many batteries do I need to store the watts that I need. or do I need a bigger watt system?

2007-01-28 08:49:51 · 4 answers · asked by Rafael M 2 in Engineering

2007-01-28 08:49:30 · 4 answers · asked by leofire94 1 in Biology

2007-01-28 08:47:54 · 4 answers · asked by charlie 1 in Mathematics

adding time and minutes to get total number of hours

2007-01-28 08:43:26 · 3 answers · asked by linda s 1 in Mathematics

A metal sphere has a charge of +8.0 mC. What is the net charge after 6.0 x10^13 electrons have been placed on it?

I was mainly wondering if the sign on the charge of electrons has to be negative since electrons correspond to negative charge.


Also, any help checking my process of solving the equation would be appreciated:
I used the equation q=Ne to find the charge of the electrons in Coloumbs, where e= 1.60 x10^-19 and N equals the number of electrons. Then I converted the 8.0 mC to Coloumbs and added the two together. My answer was 1.76 x 10^-6 C, but would be different if the charge on the electrons was negative.

Thanks!

2007-01-28 08:42:41 · 2 answers · asked by Anonymous in Physics

I realize salt water makes people more thristy but why? The NaCl substance doesn't change the H20 substances they don't react and make a new substance that isn't water?

2007-01-28 08:42:36 · 2 answers · asked by Anonymous in Chemistry

all metals have high luster, but tarnish readily in air ?

2007-01-28 08:41:17 · 1 answers · asked by luckyplaya23 2 in Chemistry

please answer ASAP

2007-01-28 08:40:18 · 4 answers · asked by winterluvnblondi 1 in Biology

2007-01-28 08:39:49 · 6 answers · asked by Anonymous in Geography

of 2. find also the sum to infinity of this progression.

2007-01-28 08:39:47 · 2 answers · asked by L 5 in Mathematics

In terms of photosynthesis and light dependent reactions.

2007-01-28 08:39:41 · 2 answers · asked by Nazi D 1 in Biology

A cattle feeder buys some feeder cattle, which average 550-lb at $115/hundred weight (that is, $115 per hundred pounds, or $1.15/lb). The price he receives when he sells them as slaughter cattle is $86/hundred weight. If he plans to make a profit of $120 per head, what will be his cost per pound for a 500-lb weight gain?

Let me know how you figure it out...I have the right answer.

2007-01-28 08:39:14 · 3 answers · asked by vixy k 2 in Mathematics

Rosa and Jon were asked by their physical

science teacher to determine the speed of

sound. While walking to their dormitories af-

ter class, Jon clapped his hands, which Rosa

and Jon heard a moment later as an echo. The

echo bounced o® a building that was 250 ft

away. They knew that they could not mea-

sure the brief time for a single clap to return,

so they had a brillant idea. Jon clapped and

then started to clap as soon as he heard the

echo, and he then continued this synchronized

clapping so that Rosa could measure the fre-

quency. Rosa counted 71 of Jon's claps in one

half minute.

What is the frequency of Jon's clapping?

Answer in units of Hz.

2007-01-28 08:38:07 · 2 answers · asked by Anonymous in Physics

2007-01-28 08:37:00 · 3 answers · asked by L 5 in Mathematics

for each find the eq'n of the tangent at the given point

explain please!


y=x² @ (-2,4)


y=square root of x @ (9,3)


y=2/x+1 @91,1)

2007-01-28 08:36:48 · 1 answers · asked by emilymelissa89 1 in Mathematics

2007-01-28 08:35:50 · 3 answers · asked by k j 1 in Mathematics