Science & Mathematics - 13 October 2006

a stone is thrown vertically upwards with initl vel of 10m/s from a 40m buliding how much time will it take to come back to ground

2006-10-13 21:49:20 · 8 answers · asked by sheriff R 1 in Physics

2006-10-13 21:47:14 · 14 answers · asked by Anonymous in Zoology

there is science exibition in my school & i have to make a workig model plzz suggest some thing .

2006-10-13 21:44:40 · 5 answers · asked by jassica 1 in Engineering

What is the cause of their perfect symmetry?

2006-10-13 21:38:12 · 10 answers · asked by Anonymous in Weather

I need a real life collection of natural number sequences I already have the golden section, and fibonnaci are there any more?

2006-10-13 21:28:58 · 4 answers · asked by Anonymous in Mathematics

Given two intersecting circles with different centres and different sizes, how to draw a line which is tangent to both of them?
(step by step please)

2006-10-13 21:27:11 · 3 answers · asked by English Learner 2 in Mathematics

2006-10-13 21:24:22 · 10 answers · asked by Anonymous in Engineering

what would be the minimum set of molecular functions required for a simple life form to grow under laboratory conditions..?

2006-10-13 21:22:51 · 3 answers · asked by ROSE.UK 3 in Chemistry

Agree or no?

As object approaches speed of light it produces its own gravitational pull in the opposite direction of travel. Its mass doesn't change with velocity but creates more gravitational drag as speed increases.

2006-10-13 21:17:57 · 3 answers · asked by aorton27 3 in Astronomy & Space

2006-10-13 21:11:44 · 4 answers · asked by tom science 4 in Astronomy & Space

2006-10-13 21:01:36 · 12 answers · asked by amadhatternmd 2 in Physics

my che teacher (&my bro too)had a great problem in saying me
"stereoisomerism"
anyone knows abt this?if s,u r heartly welcome

2006-10-13 20:57:32 · 2 answers · asked by aadith l 1 in Chemistry

2006-10-13 20:56:36 · 6 answers · asked by Demon 1 in Chemistry

see if the universe was born by the bigbang,what caused the bigbang,if by evolution what was its starting point. look i want some good and complicated answer for this question,not stupid ones

2006-10-13 20:54:37 · 11 answers · asked by genius sonia 3 in Astronomy & Space

All the guys are in the garage partying and this is what they sent me to Yahoo Answers for!!!

2006-10-13 20:45:17 · 10 answers · asked by Italian Beauty 2 in Astronomy & Space

2006-10-13 20:41:37 · 6 answers · asked by Martin I 1 in Earth Sciences & Geology

2006-10-13 20:34:53 · 8 answers · asked by Anonymous in Other - Science

2006-10-13 20:34:11 · 2 answers · asked by satya h 1 in Physics

cone pulley mechanism is used in lathe machies to change the speed of headstock spindle . i require a manual belt shifter to change the positon of belt from one pulley to another without stopping teh drive shaft

2006-10-13 20:30:42 · 2 answers · asked by tribhuvan raj b 1 in Engineering

11. Ice cream sold in supermarkets are now kept in plastic containers. Are there any other advantages of using plastic containers over tin containers?
12. During hot weather, sprinkling a little water on the floor can cool a room, why?
13. How does an electric fan give a cooling effect on hot day?
14. Give the difference between evaporation and boiling
15. A refrigerator without a thermostat will not function as efficiently as one that has a thermostat. Why? Explain

2006-10-13 20:28:17 · 8 answers · asked by arwin daine t 1 in Physics

also still vs dike,Nuee ardente, Lahar and Caldera thank you whoever can help.

2006-10-13 20:21:55 · 2 answers · asked by The word Fan! 1 in Earth Sciences & Geology

6. Sunlight passes through a clear window and falls on a table inside a room which will be hotter after sometime, the glass pane or the table top, why?
7. Two cars of the same model locked and parked under the sun in an open parking lot. One of them is dirty white and the other is dark blue. Both are park from 9 am to 12 pm which of the two will be hotter inside at 12 noon? Why
8. At 4 in the afternoon 2 cars describe above are now in the shade .w/c of the 2 will be cooler at 5:30 pm?
9.Why are some thermos bottle advertise as good for 24 hrs while others are claimed to be able to keep liquids for 48 hrs?
10. Why do woolen blankets keep us warm better than cotton blankets?

2006-10-13 20:21:08 · 5 answers · asked by arwin daine t 1 in Physics

A gaming and science-fiction driven question. Assume the city has trees, lakes and ponds and, if necessary, oxygen generators of some kind.

2006-10-13 20:19:23 · 10 answers · asked by Loremaster 1 in Weather

1. Some laboratory thermometer use alcohol instead of mercury, what are the advantages and disadvantages in using alcohol in thermometers?
2. Why is clinical thermometer usually shaken before use?
3. For liquids with boiling points below 100°C w/c thermometer could register a more accurate reading, the one with a maximum temperature of 110°C or one that register temp up to 300°C? Assume that both thermometers are of equal length.
4. Why is a small gap left between railroad tracks instead of welding them together?
5. In chemistry, platinum wires are embedded into glass rods for flame test experiment. Why is copper wire which is cheaper and readily available not used instead?

2006-10-13 20:14:22 · 4 answers · asked by arwin daine t 1 in Physics

how dedicated a medical student be to his studies?

if he should be so much dedeicated, where is the room for fun?

2006-10-13 20:10:58 · 11 answers · asked by good med stud 2 in Medicine

2006-10-13 20:08:37 · 6 answers · asked by sarwat 1 in Physics

2006-10-13 20:01:45 · 24 answers · asked by Anonymous in Physics

What if you took a Sundew plant and a Venus Fly Trap and put the parts of the sundew plant that catch insects into the jaws of a fly trap, which one would survive the other's DEADLY DIGESTIVE ENZYMES?

2006-10-13 19:59:35 · 2 answers · asked by sincere12_26 4 in Botany

its this thing:

8. If a patient drinks a compound of elements u and p, doctors caan view the patient's digestive tract.

what is u and p?

2006-10-13 19:59:08 · 5 answers · asked by DR. Connect 2 in Chemistry

2006-10-13 19:55:17 · 13 answers · asked by Anonymous in Biology