Science & Mathematics - 14 October 2006

2006-10-14 20:05:32 · 4 answers · asked by cmgal 1 in Engineering

2006-10-14 20:00:52 · 3 answers · asked by cmgal 1 in Engineering

2006-10-14 19:53:16 · 6 answers · asked by harry 1 in Biology

A sled is being pulled along a horizontal surface by a horizontal force of magnitude 600 N. Starting from rest, the sled speeds up with acceleration 0.08 for 1 minute.

Part E
Find the average power created by force .
Express your answer in watts to three significant figures.

2006-10-14 19:49:28 · 3 answers · asked by googoosh g 1 in Physics

2006-10-14 19:48:35 · 9 answers · asked by Anonymous in Chemistry

A sled is being pulled along a horizontal surface by a horizontal force of magnitude 600 N. Starting from rest, the sled speeds up with acceleration 0.08 for 1 minute.

Part E
Find the average power created by force .
Express your answer in watts to three significant figures.

2006-10-14 19:46:50 · 1 answers · asked by googoosh g 1 in Physics

2006-10-14 19:45:13 · 7 answers · asked by Anonymous in Physics

2006-10-14 19:38:56 · 4 answers · asked by abdullal f 1 in Physics

I have a transparent mineral that I cannot identify which looks colorless in direct light but has a very pale light blue tint against white surfaces. It looks very much like Goldquarryite however, unlike Goldquarryite it fluoreses a bright whitish blue under long wave UV. It has a hardness greater than calcite but softer than fluorite. I only have fragments of about 1.5cm long so I'm uncertain of the actual shape of the crystal but I can see some mica like layering on one of the flat surfaces, and steps can be seen in the fracture on one of the specimens. One specimen is slab shaped and the other is a chunk with a vague, somewhat stepped tetrogonal shape.. Both specimens are clear enough to read through yet there are many internal faults and some internal "rainbowing" as is sometimes seen in quartz. It was found in California amongst white landscaping rock which was primarily calcite. The mineral in question does not bubble in acid and is not calcite.

2006-10-14 19:35:37 · 7 answers · asked by minuteblue 6 in Earth Sciences & Geology

How do you make water? Do you just mix a jar of Oxygen and a jar of Hydrogen, stir with a spoon and poof you conjure water?

2006-10-14 19:26:07 · 15 answers · asked by Nara 1 in Chemistry

2006-10-14 19:22:46 · 7 answers · asked by robbie 1 in Astronomy & Space

find the sum of the series1. 1-1cos2a/2+(1*3 cos4a)/2*4-...........
2. csina+c^3sin3a/3+c^5sin5a/5+.............

2006-10-14 19:22:39 · 1 answers · asked by puneet jain 1 in Mathematics

How do you solve:
(cot 4u-1/cot 4u+1)=(1-tan 4u/1+tan 4u)

2006-10-14 19:18:24 · 4 answers · asked by muffy_hlc 2 in Mathematics

2006-10-14 19:17:36 · 3 answers · asked by Anonymous in Earth Sciences & Geology

I want to know how many states does Malaysia has? And what are they?
I want to know all the districts name in every state of Malaysia.
I want to know all the communes name in every districts of Malaysia.
I want to know all the villages name in every commune of Malaysia.
In short, I want to know "Malaysia list of Administrative Divisions". Which website has this infomation? Thank you!!!

2006-10-14 19:16:30 · 4 answers · asked by Thuy 1 in Geography

I watched a show on The Discovery Channel about the possible earthquake and Tsunami. I live in Northern California and it worries me knowing that it can happen at anytime.
Does anyone else have a huge fear of this happening?
I want to move, but it's so difficult. I have no idea where to go to be safe from mother nature. I know she's pretty mad. Does anyone know a safe place to live?
I know this might sound like a stupid question, but I have looked, and don't have much luck.
Thanks..

2006-10-14 19:01:56 · 11 answers · asked by idontknow 4 in Weather

what is aromaticity?
how to find out in benzene like structures?

2006-10-14 19:00:37 · 3 answers · asked by Black B 2 in Chemistry

I am taking advanced chem. next semester and we have a test comming up in biology I dont understand these cell things...I dont want to fail please help me....

2006-10-14 18:59:56 · 9 answers · asked by s.m_chicka_09 1 in Biology

You drive your car from home at an average velocity of 82 km/h for 3h. Halfway to your destination, you develop some engine problems, and for 5h you nurse the car the rest of the way. What is your average velocity for the entire trip?

2006-10-14 18:58:29 · 6 answers · asked by yoo whoo 1 in Physics

Antimony is alloyed with lead to increase the rigidity of components used in the construction of lead storage batteries.
3.536 g of a particular metallic alloy, compounded of only Pb and Sb, can be quantitatively converted into a 4.110-g mixture of the oxides PbO2 and Sb2O4.

What was the percentage (by mass) of antimony in the alloy?

Can you please explain to me how to do this?

2006-10-14 18:55:50 · 1 answers · asked by Magnitudex 2 in Chemistry

2006-10-14 18:55:25 · 14 answers · asked by Anonymous in Astronomy & Space

In Tsunami, after a wave hits the coast, the sea recedes to a considerable distance, exposing the sea bed upto one kilometre. Later, the sea comes back almost uoto its original place. Why does the sea recede?

2006-10-14 18:49:47 · 7 answers · asked by sarma_madhava 1 in Earth Sciences & Geology

A pump is required to lift a mass of 850 of water per minute from a well of depth 15.0 and eject it with a speed of 18.6 .
How much work is done per minute in lifting the water?
Take the free fall acceleration to be = 9.80 .
1.25×105 J
Correct



Part B
How much in giving the water the kinetic energy it has when ejected?
1.47×105 J
Correct



Part C
What must be the power output of the pump?
Take the free fall acceleration to be = 9.80 .

2006-10-14 18:46:26 · 1 answers · asked by googoosh g 1 in Physics

2006-10-14 18:41:08 · 5 answers · asked by wilkobali 1 in Geography

title of the article is "Oral benzo(alpha)pyrene in Cyp1 knockout mouse lines: CYP1A1 important in detoxication, CYP1B1 metabolism required for immune damage independent of total-body burden and clearance rate, Mol Pharmacol 69 (2006) 1103-1114.

2006-10-14 18:32:11 · 2 answers · asked by pjurso30094siciliano 1 in Biology

titration anyone?

2006-10-14 18:31:36 · 4 answers · asked by t _la 3 in Chemistry

earth is it self a bigger magnet, which protects us from out side radiations. it means it is very strong reaching out to hundred miles in space. we need changing flux to generate a current , which is continously changing in case of earth. so we have all the tools for electricity production. we just need a coil. but this does not work as lot of coils are there but there is no electricity flowing from them. why??

2006-10-14 18:23:58 · 6 answers · asked by osmic20 1 in Physics

of the mixture containing equal volumes of acetic acid and aqueous ammonia to the conductivity of acetic acid and ammonia alone?

2006-10-14 18:23:06 · 3 answers · asked by Candy 3 in Chemistry

A roller coaster car crosses the top of a circular loop-the-loop at twice the critical speed.What is the ratio of the car's apparent weight to its true weight?

2006-10-14 18:22:34 · 7 answers · asked by Anonymous in Physics

2006-10-14 18:17:00 · 14 answers · asked by Kyle S 1 in Biology