Science & Mathematics - 29 October 2006

general

2006-10-29 14:56:20 · 11 answers · asked by Anonymous in Earth Sciences & Geology

2006-10-29 14:55:50 · 8 answers · asked by ssshhh 3 in Physics

please show your work..

2006-10-29 14:53:00 · 3 answers · asked by Anonymous in Mathematics

Why is this question ill-posed? Hint: The numbers are phisically impossible.

The London Eye is a large ferris wheel that has a diameter 135 meters and revolves continuously. Passengers enter at bottom of the wheel and complete one revolution in 20 minutes. One minurte into the ride a passenger is rising at 0.1 meters per second. How fast is the horizontal motion of the passenger at that moment?

Remember, don't have to answer problem, only why is it ill-posed?

2006-10-29 14:52:32 · 4 answers · asked by RedwoodLife 2 in Mathematics

2006-10-29 14:52:26 · 2 answers · asked by Anonymous in Biology

3/4x-2 = 5+2/3x

2006-10-29 14:52:24 · 7 answers · asked by Anonymous in Mathematics

I have seen other people build full body armor suits for costumes and stronger ones for airsoft / paintball - I have been gathering information on this, but I realized the best place to ask would be here. I have considered fiberglass or poly-carbon, but still need to know where to get it, how to mold it, how to add joint parts, etc. I know this must sound very strange, but... any information would help.

2006-10-29 14:51:32 · 6 answers · asked by Monkey Buisness 1 in Engineering

2006-10-29 14:50:42 · 4 answers · asked by fenixtxbabe182 1 in Astronomy & Space

list some examples please

2006-10-29 14:49:52 · 11 answers · asked by TrackStar 3 in Medicine

use your calculator memory key to fing the thrid angel in these triangeles
1.124-48
2. 21-42
3.18-113
4. 95-5
5. 95-43
6. 45-45
7. 80-60
8. 60-60
9. 85-15
10. 64-59
11. 15-145
12. 33-69

2006-10-29 14:48:08 · 5 answers · asked by whyadw@yahoo.com 1 in Mathematics

2006-10-29 14:46:30 · 2 answers · asked by lucky_05 1 in Chemistry

Meade DS-114ATA Reflecting Telescope with Meade Autostar Controller, Red Dot Viefinder, Tripod, Eyepieces

or

TeleStar DS-2130AT
5” Newtonian reflecting telescope with Autostar

2006-10-29 14:46:22 · 4 answers · asked by nomekop11 1 in Astronomy & Space

i have 7,000 Li of a solution of pH = 2.0. i want to raise it's pH to pH = 7.0 with 40% NaOH solution. i've calculated that about 4.7 Li of the caustic solution must be added. is this correct? how do you solve such a problem? thanks.

2006-10-29 14:45:48 · 3 answers · asked by lucky_me25 1 in Chemistry

How much of what kind of energy is required to warp the fabric of space to create a signifcant distortion? Does a supernova with its huge energy output, do this?

2006-10-29 14:45:46 · 2 answers · asked by primordial_primate45 2 in Physics

Cosh(A+B) = CoshA*CoshB+SinhB*SinhA

Please help

2006-10-29 14:45:33 · 4 answers · asked by Evan B 1 in Mathematics

the question is:

Research the 1783 Laki fissure flow in Iceland. It was 40km long and covered 500km. How did it affect vegetation and livestock?

2006-10-29 14:44:38 · 8 answers · asked by =/ 2 in Earth Sciences & Geology

2006-10-29 14:44:22 · 14 answers · asked by nfl 1 in Zoology

A. The pressure is greater, and the boiling point of water is higher.
B. The pressure is lower, and the boiling point of water is higher.
C. The pressure is greater, and the boiling point of water is lower.
D.The pressure is lower, and the boiling point of water is lower.

2006-10-29 14:44:18 · 5 answers · asked by Ashley C 1 in Chemistry

2006-10-29 14:39:42 · 9 answers · asked by nfl 1 in Zoology

Given any Cartesian coordinates, (x,y), there are polar coordinates (r,(theta)) with -{pi}/{2} < theta <(and equal) {pi}/{2} .
Find polar coordinates with -{pi}{2} (a) If (x,y) = (19, 3) then (r, theta) = ( , ), i got r as 19.24 and my theta was wrong and i said it was 8.972627.
(b) If (x,y) = (10, 6) then (r, theta) = ( , ), I got r as 11.661903 and again my theta was wrong and i said it was 30.963757.
(c) If (x,y) = (-9, -8) then (r, theta) = ( , ), I got both r and theta wrong and no clue why
(d) If (x,y) = (16, 1) then (r, theta) = ( , ), I got r as 16.03122 and it was right and again my theta was wrong
(e) If (x,y) = (-4, 6) then (r, theta) = ( , ), both r and theta were wrong
(f) If (x,y) = (0, -6) then (r, theta) = ( , ). both r and theta were wrong

i know you are suppose to use r^2=x^2+y^2 to find r
and then for theta use arctan of (y/x) . why am i getting these wrong?

2006-10-29 14:39:30 · 3 answers · asked by Theresa C 2 in Mathematics

2006-10-29 14:39:17 · 3 answers · asked by Robert 2 in Earth Sciences & Geology

2006-10-29 14:34:56 · 6 answers · asked by Anonymous in Engineering

Match the following with the correct definitions.

1. barnacles A) closes the door to trap moisture inside
2. anemones B) fold inward to hold in moisture
3. mussels C) move to shady area
4. starfish D) pants to force water over gills
5. hermit crab E) holdfasts to secure themselves to rocks
6. kelp F) stores water then slowly releases it
7. grunt sculpin G) shell to hide inside

**********************************************************
All of the following are benthic organisms except

a) sea star
b) hermit crab
c) tuna


Which of the following bedrock is not normally found on rocky shores?

-->sandstone
-->granite
-->quartzite


Choose the plants from the following list that you would find in the lower shore area of the rocky shore.

-->kelp
-->lichens
-->rockweed

ANYBODY WHO CAN HELP ME, I wud be so vry happy & thnk ful :)

2006-10-29 14:33:43 · 2 answers · asked by anetena 2 in Biology

I need a roll of 1/8 inch (or slightly larger) aluminum wire, like we used to use for grounding cables in electrical panels. I am a sculptor, needing "skeletal" wire.

2006-10-29 14:32:36 · 1 answers · asked by Lion J 3 in Engineering

Ever since, the earth magnetic field is slowly weakening, and maybe preparing to filp the magnetic poles reversally, is it possible that this magnetic field is causing us to have colder weather or stronger hurricane? Does the earth magnetic field have any relationship to explain this stronger weather systems?

2006-10-29 14:31:45 · 11 answers · asked by ? 4 in Astronomy & Space

This needs to be completed by completing the square. I know the answer is (10,-10), but I dont understand how to get it.

2006-10-29 14:30:51 · 6 answers · asked by C 1 in Mathematics

2006-10-29 14:30:21 · 16 answers · asked by kaitlin 2 in Chemistry

2006-10-29 14:29:38 · 4 answers · asked by Mia B 1 in Geography

2006-10-29 14:28:51 · 2 answers · asked by Jessica Monique! 2 in Zoology

Something like a Van De Gras generator?

2006-10-29 14:28:50 · 5 answers · asked by Jonathan C 2 in Engineering