Science & Mathematics - 15 November 2006

2006-11-15 12:09:00 · 6 answers · asked by carlo232003 2 in Mathematics

please I need help!!

2006-11-15 12:06:56 · 4 answers · asked by K L 3 in Biology

A picture frame is 1o inches by 12 inches. The picture inside has an area of 63 square inches. The picture frame has a width of x inches. What is x?

2006-11-15 12:06:27 · 5 answers · asked by Julie J 1 in Mathematics

Tsunami Waveheight, Tsunami Wavelength, when

2006-11-15 12:05:08 · 2 answers · asked by Anonymous in Earth Sciences & Geology

It would be pretty cool to go into a room and be anywhere you want to go in this time or another.

http://en.wikipedia.org/wiki/Holodeck

From what I've read on this web site it should be possible considering it's done with computers.

2006-11-15 12:04:30 · 3 answers · asked by Sean 7 in Astronomy & Space

I had an experieance once where myself and my friend were chased by strange lights . I was 19 years old then ,48 now . I still think about it . Has anyone had a simmilar experiance ? I was in the Mid West at the time . They never came reall close 200 feet , ,but we could not get away from them . It was at night around 2 am . I dont remember how it ended . definitly not a dream as I was with a close friend .

2006-11-15 12:04:28 · 7 answers · asked by Anonymous in Astronomy & Space

2006-11-15 12:00:03 · 9 answers · asked by ganstagirl4life 1 in Mathematics

I need help. I know how to do all this but I'm sick as a dog and this, although easy, is making my head hurt. PLEASE HELP. I'll do pretty much anything.

5/6 + 7/8 - 11/12

-19 5/6 + 10 9/10

4 7/18 - 3 7/12

-1 4/5 + 4 1/12

WRITE THESE IN FRACTIONS

14.6 + (-3 1/5)

-7.75 - 4.125

5.75 + (-2 1/8)

1.75 - 2.75 - 4 5/8

3.5 - 6.7 + 4.2

3/16 + 1/8 - 1/4

x + 3/8 = -1/4

y - 1/5 = -4/5

z + -2/3 = -1/6

m - 9/10 = 1/5

n - 1 1/3 = -3

p + 7/12 = -1/4

c - 7.2 = -3.7

d - 0.16 = 2.3

1/8 + a = -2 1/4

Last One: Stanley is helping in the library by mending torn pages. He has cut strips of tape with lengths of 5/5 inches, 6 7/8 inches, 3.75 inches, and 4 3/16 inches. What is the total length of tape he has used?

2006-11-15 11:58:10 · 5 answers · asked by Baby Girl 2 in Mathematics

Which is more accurate, to mass the liquid in the small container before pouring it into the graduated cylinder, or to determine its volume first?

2006-11-15 11:57:18 · 2 answers · asked by Nerdybones 2 in Physics

2006-11-15 11:56:03 · 9 answers · asked by Selena G 1 in Geography

2006-11-15 11:53:59 · 2 answers · asked by Anonymous in Chemistry

2006-11-15 11:51:29 · 11 answers · asked by diamond d 1 in Biology

I may be easier to use the quadratic formula but the original equation is 4x^2(4x squared) -44x + 63

2006-11-15 11:50:02 · 4 answers · asked by Julie J 1 in Mathematics

I am learning about DNA. What determines the final shape of the proteins.

2006-11-15 11:46:23 · 6 answers · asked by Best Helper 4 in Biology

Will it be 1/3 in the beginning or just 3?

2006-11-15 11:45:28 · 4 answers · asked by ♥ Lady in Pink ♥ 2 in Mathematics

I need to write an essay and need ideas. The topic I picked is “Conservation of Mechanical Energy"

Here is a quote from the overview that was given to me:

In this physics course you learned a great many scientific concepts: Newton’s three laws, Snell’s law, Archimedes’ principal, conservation of mechanical energy, heat, temperature, gravity, kinetic theory, wave theory of sound and light, to name just a few. Many of these concepts were an entirely different way of understanding and explaining observations. For example, the heliocentric view of the solar system replaced the Ptolemaic view of the solar system.
In this project you will select a science concept that you learned in this class and explain the previous erroneous concept that the new concept replaced. If this was a course in astronomy, for example, you would explain the Ptolemaic system.

Does anybody have any suggestions on what I can write about for "Conservation of Mechanical Energy"

2006-11-15 11:44:55 · 3 answers · asked by Anonymous in Physics

2006-11-15 11:43:36 · 5 answers · asked by Anonymous in Geography

Can somebody do some math for me? I have the flu and I know how to do the stuff, but my head hurts too much to do it. Please help me!?

5/6 + 7/8 - 11/12

-19 5/6 + 10 9/10

4 7/18 - 3 7/12

-1 4/5 + 4 1/12

WRITE THESE IN FRACTIONS

14.6 + (-3 1/5)

-7.75 - 4.125

5.75 + (-2 1/8)

1.75 - 2.75 - 4 5/8

3.5 - 6.7 + 4.2

3/16 + 1/8 - 1/4

x + 3/8 = -1/4

y - 1/5 = -4/5

z + -2/3 = -1/6

m - 9/10 = 1/5

n - 1 1/3 = -3

p + 7/12 = -1/4

c - 7.2 = -3.7

d - 0.16 = 2.3

1/8 + a = -2 1/4

Last One: Stanley is helping in the library by mending torn pages. He has cut strips of tape with lengths of 5/5 inches, 6 7/8 inches, 3.75 inches, and 4 3/16 inches. What is the total length of tape he has used?

2006-11-15 11:41:53 · 5 answers · asked by Baby Girl 2 in Mathematics

2006-11-15 11:41:23 · 1 answers · asked by Big-J 1 in Engineering

1.At room temp., an oxygen molecule, with mass of 5.31 x 10^-26 kg, typically has a KE of about 6.21 x 10^-21 J. How fast is it moving?

2.An 80 g arrow is fired from a bow whose string exerts an average force of 95 N on the arrow over a distance of 80 cm. What's the speed of the arrow as it leaves the bow?

3.If the speed of a car is increased by 50%, by what factor will its minimum braking distance be increased, assuming all else is the same? Ignore the driver's reaction time.

4.A softball having a mass of .25 kg is pitched at 100 km/h. By the time it reaches the plate, it may have slowed by 10%. Neglecting gravity, estimate the average force of air resistance during a pitch, if the distance between the plate and pitcher is about 15 m.

5.A 220 kg load is lifted 21.0 m vertically with an acceleration a = 0.150 g by a single cable. Determine (a) tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load.

Please show work.

2006-11-15 11:39:27 · 1 answers · asked by hdwong58 3 in Physics

2006-11-15 11:38:29 · 3 answers · asked by Anonymous in Biology

yeah, can you make it so a ''10 year old'' can understand it? thanks!

2006-11-15 11:37:13 · 5 answers · asked by Anonymous in Botany

These two forces confuse me a lot. From what I know, London forces occurs in ALL substances. However, they are most likely found in "neutral" (?) molecules. Dipole-dipole interactions are between polar molecules and are permanent. Can anyone clarify these two more for me? Also, given two different types of atoms and molecules, how do you differentiate the two? Thanks in advance!

2006-11-15 11:36:04 · 1 answers · asked by Reimei 2 in Chemistry

i forgot mine. i never under stood them any how.
and no math books lying around my house has the defiintions for them. wat are they wen u add subtract mutliply and diviide numbers?

2006-11-15 11:35:35 · 4 answers · asked by watch it homie. :]] 2 in Mathematics

Question: how much heat energy is needed to melt 32.0 grams of ice at 0 degrees celsius and then heat the water to 20 deg celsius?

Given: changeH(fusion), H20 = 6.02 KJ/mol; C(s) - specific heat - H2O = 4.1813 J/gk

My Approach:

i converted 4.1813 J/gk (1kJ / 1000J) = .0041813 KJ/gk

Then, i solved for the Energy

q = mc(s)changeT
q = (32.0 g)(.0041813 KJ/gk)(20 - 0 deg celsius)
q = 2.68 KJ <--------my answer! what do you get?

2006-11-15 11:35:04 · 1 answers · asked by Anonymous in Chemistry

undefined?

2006-11-15 11:35:03 · 9 answers · asked by crazylifer 3 in Mathematics

2x - 4y = 1


y-intercept = - 1/4 right?

2006-11-15 11:32:49 · 9 answers · asked by crazylifer 3 in Mathematics

Please help!!!!!

2006-11-15 11:32:39 · 7 answers · asked by Anonymous in Biology

2006-11-15 11:32:12 · 8 answers · asked by pegasis 5 in Other - Science

This is a thinking critically question from my science teacher. The blood cell has to be red.

2006-11-15 11:31:59 · 6 answers · asked by Anonymous in Biology