Science & Mathematics - 19 September 2007

1.copper 2. nickel 3.iron 4.nichrome

2007-09-19 09:25:48 · 1 answers · asked by hussain h 1 in Engineering

Victoria weighs 5/7 as much as Mario. Victoria weighs 125 lb. Write and solve an equation to determine how much Mario weighs.

2007-09-19 09:21:16 · 10 answers · asked by Anonymous in Mathematics

Which if the following is an accurate statedment?

a.) the magnitude of a vector can be zero even though one of its components is not zero.

b.)the magnitude of a vector is independent of the coordinate system used.

c.) even though two vectors have unequal magnitudes, it is possible that their vectors sum is zero

d.)Rotating a vector about an axis passing through the tip of the vector does not change the vector

e.) it is possible to add a scalar quantity to a vector

2007-09-19 09:19:24 · 1 answers · asked by Alex M 1 in Physics

2007-09-19 09:19:07 · 11 answers · asked by strewth78 1 in Mathematics

I understand the chemical reaction that fire is but i dont how what the actual flame is!

Plasma maybe?

Thanks in advance!

2007-09-19 09:17:24 · 3 answers · asked by risc19 2 in Physics

According to wikipedia, the button cell's voltage is 1.5V to 3V and the AA battery's voltage is 1.5V. Why is it that button cells can have as much voltage as something much bigger?

2007-09-19 09:11:51 · 2 answers · asked by Elf Asura 2 in Physics

Does anyone if there was a meteor last night? and can you give me a site to find out.

2007-09-19 09:10:00 · 7 answers · asked by Moony Black 3 in Astronomy & Space

number changes you know......

2007-09-19 09:08:54 · 13 answers · asked by Himz 1 in Paranormal Phenomena

2007-09-19 09:06:00 · 4 answers · asked by Anonymous in Other - Alternative

My language arts teacher asked us one day "What is the smelliest mammal in the world?" can u figure it out???

2007-09-19 09:05:59 · 12 answers · asked by *~Kendra~* 2 in Zoology

Is it a solid, or a liquid, or is there a name for something in between?
How is it made up, molecularly?
Thanks

2007-09-19 09:04:47 · 6 answers · asked by Anonymous in Chemistry

what are the disadvantages of using mortar as a building material?

2007-09-19 09:03:22 · 2 answers · asked by Seevan. 2 in Chemistry

What physical property of metals explains this observation?
What uses does this property have?

I'll award best awnser =]

2007-09-19 08:59:44 · 5 answers · asked by meghan♥ 4 in Physics

2007-09-19 08:59:35 · 3 answers · asked by Aaron D 1 in Engineering

2007-09-19 08:57:14 · 3 answers · asked by Anonymous in Chemistry

I live in MS and the mosquitos are pretty bad anyone have a logical answer as to what puspose they serve.

2007-09-19 08:54:46 · 8 answers · asked by Daniel 1 in Biology

Given 5 points in the interior of a square of side length one. Prove at least two two of the points are less than
sq. rt. of 2/2
units apart. Thx

2007-09-19 08:51:17 · 7 answers · asked by Meow* 2 in Mathematics

1.What is a cathode ray? Which subatomic particle is detected.


2.Which group of the periodic table is know as the noble gases, list them.

3.Distiguish between a sublevel and an orbital


Thanks so much! =)

2007-09-19 08:50:49 · 1 answers · asked by Anonymous in Chemistry

A small ball rolls horizontally off the edge of a tabletop
that is 1.20m high. It strikes the floor at a point 1.52m horizontally from the table edge. (a) How long is the ball in the
air? (b) What is its speed at the instant it leaves the table? Show and explain your work. Thanks :)

2007-09-19 08:47:36 · 1 answers · asked by Anonymous in Physics

What is the molality of a solution consisting of 2.67 mL of carbon tetrachloride (CCl4, d = 1.59 g/mL) in 79.7 mL of methylene chloride (CH2Cl2, d = 1.33 g/mL)?

2007-09-19 08:46:52 · 2 answers · asked by Anonymous in Chemistry

I have had a lot of things come up missing so I certainly have my suspicions

2007-09-19 08:43:38 · 10 answers · asked by ronald b 2 in Astronomy & Space

HELP PLEASE!!
1. Find 17% of 600.
2. Find 4% of 80.
3. Find 3.2% of 250.
PLEASE SHOW WORK...

2007-09-19 08:42:46 · 11 answers · asked by cougarsam456 1 in Mathematics

2007-09-19 08:42:39 · 5 answers · asked by Dana D 1 in Engineering

l x/3 + 4 l >7

2007-09-19 08:39:25 · 4 answers · asked by Anonymous in Mathematics

and what are they? thanks!

2007-09-19 08:38:32 · 18 answers · asked by diamonds_are_forever<3 3 in Astronomy & Space

2007-09-19 08:38:28 · 6 answers · asked by Desiree J 1 in Mathematics

2007-09-19 08:37:24 · 16 answers · asked by Kimmy 2 in Mathematics

In a 30% off sale, you pay $35.00 for an article. What is its original price ?


...well, i know that the original price = x

2007-09-19 08:35:54 · 6 answers · asked by JuJu Beanz 1 in Mathematics

2007-09-19 08:34:04 · 5 answers · asked by dezi2020 1 in Mathematics

I just don't really get it when my chemistry teacher explained it to us. The question on the homework is "Which gas has, under high pressure and low temperature, behavior closest to that of an ideal gas?" The choices are:
1. H2
2. O2
3. NH3
4. CO2

Can you tell me what the answer is and why?

2007-09-19 08:33:17 · 2 answers · asked by Meggie Beth 3 in Chemistry