Science & Mathematics - 5 October 2007

If a person gets 99 times tails by tossing a coin, is it that the 100th time when he tosses the coin, it will be tails ?

Most of you will think that it is based on luck.

But, if we calculate mathematically, lets say we toss a coin 1000 times in vacuum and every time we toss it, it reaches the same height and with the same side of the coin every time.
Lets toss it from heads, now suppose we get tails on the first time, then by above conditions we must get tails every time we toss it.
By scientific thinking, we can say there is no such thing as luck.

What do you think ?

2007-10-05 23:40:01 · 7 answers · asked by Mikhil M 2 in Physics

2007-10-05 23:36:07 · 8 answers · asked by Anonymous in Medicine

2007-10-05 23:13:59 · 22 answers · asked by Anonymous in Physics

A farmer has twenty animals including goat, baffelo and cows. He takes 40 kg milk from these animals daily. If one goat (z)give 0.25 kg milk, one baffelo(x) give 5 kg milk and cow(y) give 2kg milk in one time. can any body tell that how much animal of each kind he has?
Actually I made two equations but I need third equation to solve it.
equation 1 is 5x+2y+0.25z=40
equation 2 is x+y+z=20
x , y or z cannot be equal to 0

2007-10-05 23:12:47 · 4 answers · asked by Ali 1 in Mathematics

PLEASE ANSWER THIS QUESTION I WILL BE U'R SLAVE

2007-10-05 23:04:13 · 17 answers · asked by punk 1 in Astronomy & Space

answer if you are very confident. tq

2007-10-05 23:01:41 · 4 answers · asked by Anonymous in Mathematics

2007-10-05 22:58:57 · 2 answers · asked by Anonymous in Medicine

2007-10-05 22:49:07 · 3 answers · asked by JJ 7 in Biology

this telescope can see at distances of thousands of light years.how is this possible?

2007-10-05 22:43:54 · 5 answers · asked by severly lethargic 1 in Astronomy & Space

Just say someone chucks a crab harshly and their limbs come off can they re-grow them?

2007-10-05 22:37:40 · 8 answers · asked by Samantha 2 in Zoology

Is the type of steel used for katana swords made by the sword makers? or is it commercially bought?

2007-10-05 22:36:21 · 5 answers · asked by Anonymous in Engineering

2007-10-05 22:33:31 · 6 answers · asked by u&me 2 in Engineering

I think it is because if it was sphere we'd all slip and fall! So therefore it is flat (hence proved). I am thinking of opening a FEC (Flat Earth Club) at my school and recruiting as many people.

2007-10-05 21:38:08 · 20 answers · asked by Axis Flip 3 in Geography

molicular agitation tocreat heat energy-cause any condition like sterilty

2007-10-05 21:18:15 · 1 answers · asked by dwarakanathan cr rama 4 in Physics

Is the part labeled as north on a compass actually a south pole magnet? Is it true that the magnetic north is not the true north?

2007-10-05 21:02:08 · 5 answers · asked by snowy888 1 in Earth Sciences & Geology

If Kandise put $9,000 in a savings account which had a interest rate of 2% which was compounded annually, how much would be in that account after 8 years? How much would he have earned?

2007-10-05 20:59:38 · 3 answers · asked by 511@ 4 in Mathematics

5 & 5/8 in.
11 in.
8 in.

Which of the following bending angles would you probably make if the handle of your bender ends up in a vertical position?

90 degrees
60 degrees
30 degrees

2007-10-05 20:59:11 · 1 answers · asked by janvincent21 1 in Engineering

2007-10-05 20:53:25 · 8 answers · asked by smr_bd10 1 in Chemistry

What will happen to metal containers that are filled with liquid or gas at high pressure if they are exposed to extreme cold or to a temperature above 120 degrees celcius? Why so?

Are containers filled with liquid or gas at high pressure, thermostats and thermometers influenced or affected by the effects of heat?

What effects cause the density of the air in a hot air balloon to change?

What is the name of the gas that bubbles in the dough to make the dough rise?

Mercury and alcohol are usually used in liquid-in-glass thermometers. Suggest why these liquids, instead of water, are used.

How is heat transferred between the polar bear and it's surroundings?

Both mercury and water are liquids at room temperature. Why is mercury a good conductor of heat, but not water?

What is a souldering iron used for? A souldering iron has an iron rod with a copper tip. Why is the tip made out of copper instead of iron?

Can heat be transferred by convection in solids? Why/why not

2007-10-05 20:46:57 · 3 answers · asked by Yuppy kid! =P Roxzzz.... 2 in Physics

An aluminum cup of 200g contains 150g of water at 30 degrees how many cubes of ice at -14 degrees C must be added to the cup to lower the temp of water to 10 degrees C if each cube of ice weighs 10g?

2007-10-05 20:35:48 · 1 answers · asked by caniaskyouplease 1 in Physics

Law of biogenesis states that life comes from life and that a certain kind of animal would give birth to its exact same kind. But then this contradicts evolution. Not the theory but the factual aspect of evolution. wouldnt it?

2007-10-05 20:32:25 · 5 answers · asked by Anonymous in Biology

2007-10-05 20:26:29 · 2 answers · asked by das 1 in Mathematics

can you please answer this question and maybe explain

two boats leave san diego at the same time. one boat sails due north and the other due west. when they are 10 miles apart, the boat traveling north has sailed 2 miles farther than the boat sailing west. find the distance each boat has traveled.

2007-10-05 20:25:02 · 5 answers · asked by David 1 in Mathematics

I can predict numbers, wether it's in normal converasation, tv ads, whatever, games. Also, over the past 2-3 years, I have correctly predicted 11 of 13 births among friends and relatives. Are these coincidental odds or am I on to something?

2007-10-05 20:20:19 · 13 answers · asked by Yeti 2 in Paranormal Phenomena

1. __, 1, 5, 2, 8, 3, 5, __, 4, 5, 1, 4

2. 12, 57, 31, 14, 51, 138, 16, 71, 18, __, __, __

3. 34, 22, 89, 63, __,41, 12, __, 64, 92, 25, __

4. 31517, 114, 9111113, 148, __, __

5. 11534, 11343, 26828, 821135, __

Thanks in advance.

Colin

2007-10-05 20:07:10 · 3 answers · asked by colin_aye 1 in Mathematics

2007-10-05 19:54:09 · 5 answers · asked by Anonymous in Medicine

for x=5Q/(3+Z)

Show that cross partial derivatives are equall

2007-10-05 19:52:17 · 3 answers · asked by Anonymous in Mathematics

Is the number of elements likely to increase or decrease in the future? why so?

What is the most abundant element in our Earth's crust?

Why is carbon used as/for/in
(i) formation of living tissues?
(ii) as a fuel
(iii) pencil leads

Why is hydrogen used for:
(i) making margarine
(ii) as rocket fuel
(iii) for filling weather balloons

Why is sulphur used
(i) for making insecticides
(ii) for making medicinal drugs
(iii) for hardening rubber used in making car tyres

Why is oxygen used for
(i) Respiration -why is it necessary? To which organ?
(ii) for combustion
(iii) in oxy-acetylene flames for weilding

Why is Nitrogen used
(i) for the formation of plant and animal proteins
(ii) in the manufacture of fertilisers
(iii) in the liquid agent as a cooling agent

Is a compound formed when iron rusts? If so, what is the compound formed and what are the reactants that form the compound?

2007-10-05 19:50:52 · 3 answers · asked by Yuppy kid! =P Roxzzz.... 2 in Earth Sciences & Geology

A U.S. Patriot missile has a velocity of 1032 m/s. What is the velocity of the missile in miles per hour

2007-10-05 19:45:25 · 2 answers · asked by zahra 1 in Physics

Can someone tell me how to find the derivative of the function x^1/2 (3−2 x^2) over x?

f(x)= x^1/2 (3−2 x^2)
--------------------
x

2007-10-05 19:32:05 · 3 answers · asked by Anonymous in Mathematics