Science & Mathematics - 4 July 2007

Simple one.

2007-07-04 16:06:53 · 8 answers · asked by Anonymous in Mathematics

why did they move Pluto off the planet line on our solar system and how does this effect the creating of brith chart and other things that has to do with reading the stars?

2007-07-04 15:54:09 · 7 answers · asked by Anonymous in Astronomy & Space

Get your checkerboard and place one grain of wheat on the first square. Then place two grains of wheat on the next square. Then place four grains on the third square. Continue this until all 64 squares are covered with grains of wheat.” As he had just harvested his wheat, Mr. Crane did not consider this much of an award, but he soon realized he made a miscalculation on the amount of wheat involved.

How much total grain would the traveling salesman receive if the checkerboard only had 24 squares?
Calculate the amount of wheat necessary to fill the whole checkerboard (64 squares). How much wheat would the farmer need to give the salesman? Please provide the answer in either scientific notation, or calculate and show all 20 digits.

2007-07-04 15:51:40 · 5 answers · asked by quepid622 1 in Mathematics

solve by substitution
3x - 2y = -80
2x - y = -57

A (26, 19)
B (11, -37)
C (8, 17)
D (14, -34)
E (12, 28)
F (-34, -11)

2007-07-04 15:37:40 · 7 answers · asked by Anonymous in Mathematics

2007-07-04 15:32:51 · 5 answers · asked by Anonymous in Medicine

A cat dozes on a stationary merry-go-round, at a radius of 5.0 m from the center of the ride. Then the operator turns on the ride and brings it up to its proper turning rate of one complete rotation every 6.2 s. What is the least coefficient of static friction between the cat and the merry-go-round that will allow the cat to stay in place, without sliding?

2007-07-04 15:32:31 · 5 answers · asked by xstrychnine 1 in Physics

2007-07-04 15:28:57 · 7 answers · asked by Graciela, RIRS 6 in Physics

2007-07-04 15:28:56 · 7 answers · asked by Anonymous in Astronomy & Space

2007-07-04 15:13:44 · 14 answers · asked by Anonymous in Astronomy & Space

In lab we did a DNA extraction from a strawberry. We got a lecture on it, but the one thing I can't remember is how the detergent lyses the cell. Can some one explain that to me?

thanks

2007-07-04 15:09:40 · 4 answers · asked by blackcat3556 4 in Biology

2007-07-04 15:05:23 · 3 answers · asked by Anonymous in Chemistry

Each of the following are soluble in water except

BaCl2
Mg(CH3COO)2
(NH4)3PO4
FeS

2007-07-04 15:03:28 · 4 answers · asked by Anonymous in Chemistry

According to the solubility rules, Al2(SO4)3 is soluble in water. When it dissolves, what is the charge on the aluminum ion?

2007-07-04 15:02:28 · 2 answers · asked by Anonymous in Chemistry

2007-07-04 15:01:50 · 1 answers · asked by Anonymous in Chemistry

solve by substitution method
7x + y = 18
11x + 3y = -6

A (26, 19)
B (-14, -34)
C (-8, 32)
D (6, -24)
E (-39, -29)
F (-34, -11)

2007-07-04 14:48:04 · 4 answers · asked by Anonymous in Mathematics

solve by substitution method
7x + 17y = -552
2x - y = 59

A (26, 19)
B (-14, -34)
C (-8, 32)
D (11, -37)
E (-39, -29)
F (39, 8)

2007-07-04 14:45:12 · 6 answers · asked by Anonymous in Mathematics

2007-07-04 14:35:09 · 12 answers · asked by Anonymous in Geography

on all of Earth's beaches? That's a lot.

2007-07-04 14:24:16 · 9 answers · asked by Anonymous in Astronomy & Space

and the ultimate means of saving life.

2007-07-04 14:00:00 · 5 answers · asked by flordeliz l 1 in Medicine

The ability of honeybees to fly directly to a food source, after having to wait several hours from the time of the waggle dance, indicates that

a.) Bees have an internal clock that compensates for the movement of the sun during the elapsed time.
b.) The bees must have been to that food source before.
c.) Bees are directed more by olfactory cues than by directional cues.
d.) The intensity of the dance provided directional cues.

2007-07-04 13:57:12 · 3 answers · asked by Lo 1 in Biology

WHAT IS THE DIFFERENCE??

2007-07-04 13:51:24 · 17 answers · asked by Chris 2 in Weather

I saw a commercial for it and it claims to cure practically everything. Is this a legitimate medication? Is it prescribed by doctors?

2007-07-04 13:43:01 · 5 answers · asked by Elaine P...is for Poetry 7 in Medicine

Please answer the first color and smell you think of, I am conducting an experiment. Thank you.

2007-07-04 13:42:21 · 13 answers · asked by zachdurso 2 in Other - Science

I need to round this to the nearest dollar?
$20329.12534

2007-07-04 13:41:45 · 6 answers · asked by needing help... 1 in Mathematics

If your quiz average is 86????
and your quiz grades are 84,88,82,90,92,X, where is X is unknown. can you determine the missing grade???

2007-07-04 13:40:37 · 3 answers · asked by beauty mirna 3 in Mathematics

2007-07-04 13:24:49 · 20 answers · asked by Aaron H 1 in Astronomy & Space

how many fence posts are needed to enclose a square garden 40 feet on a side if a post is placed every 5 feet around the perimeter.

2007-07-04 13:22:11 · 13 answers · asked by cindy n 1 in Mathematics

Very down and lonely maybe cause l am 50 l dont know maybe lots of things .

2007-07-04 13:12:31 · 13 answers · asked by pirateron 5 in Physics

2007-07-04 13:10:43 · 8 answers · asked by "Van" 1 in Mathematics

The answer is (-infinity, -(11/7)) or [(-239/166), inifinty). I just need to know how to work the problem.

2007-07-04 13:08:55 · 6 answers · asked by Tiffany W 2 in Mathematics