Science & Mathematics - 1 July 2006

2006-07-01 17:51:12 · 10 answers · asked by Anonymous in Weather

Suppose you have a checkers board with tan and grey squares, each square measuring 5 cm by 5 cm.

What's the radius of the largest circle that can be drawn on the board such that the entire circumference of the circle is only touching grey? Please round to the nearest hundredth of a centimeter

If you think you've got it, be sure you can show how!

2006-07-01 17:50:57 · 11 answers · asked by xd_drd77 2 in Mathematics

there should not be age difference between 2 twins space twin or earth twin..

we are talking about absolute age. Age will be decided by absolute age or absolute time not by relative time.

the absolute age should be same for both twins. wherever one of the twins goes in the space we will be comparing him with our earth time reference. means if the twin is traveling in the space at whatever speed or wherever he is, 1 day on earth will be same 1 day for him. when the earth twin ages by one year the space twin also has to age by one year. Because we are comparing with our earth time. it is absolute for us. Means when we spend one day on our earth, throughout the infinite universe it will be only one day. wherever the twin spends that time he can only have one earth day.

Now the space twin may develop physiological changes unique to space and speed travel etc and this might produce 3 possibilities; he will live longer; he will live shorter, or he will live as long the other twin ( other biasing factors should be eliminated ). This is not equivalent to age change.

If space twin will live longer- how does it make him younger than the earth twin???? when earth twin spent 1 year for example on earth the space twin also has spent only 1 year in the space. so the absolute age is same for both. so even if the space twin will live longer he still will be of the same age as the earth twin.

For example- If the space twin leaves earth on 7/2/2006 and goes to alpha centaury at light speed he will reach that star system around 7/2/2010 ( approximate ) - then returns to earth after another 4 years on 7/2/2014- so total about 8 years- now what will happen?

when the space twin returns on that day of 2014 for both twins it will be same date. And both twins have lived in this universe for 14 years. Implying both are aging by 14 years ahead. because we cannot change the absolute time. It has been fixed for the whole universe..

now the perception of time may be different for the twins. the space twin will have a so called normal disorientation of time ( I will call normal because it is appropriate for the situation ). He might lose the concept or sense of earth time and might feel he has only spent short period of time instead of 14 years as experienced by the earth twin. But that is in his mind only and it is an altered perception, but in reality he and his and his earth twin both have lived for exactly 14 years.

To make it further simple; let the space twin carry a clock with him. Let him frequently look at it. This will reduce the disorientation for time and will keep him attached to earth time. He will feel he spent 14 years on space travel when the earth twin also spends 14 years on the earth.

Absolute time is all important and it will be same. Means both will age same. However one of the twins possibly the space twin ( although not sure ) may live longer. And it should be considered as “ the space twin lives longer rather than he became younger and lived longer“ In effect he has lived all those days lived by his earth twin + additional days he lives secondary to space travel advantage.

2006-07-01 17:45:05 · 5 answers · asked by SS 2 in Astronomy & Space

im trying to figure out how many feet the faster bike wins by, thanks

2006-07-01 17:44:56 · 4 answers · asked by Skillet 1 in Mathematics

2006-07-01 17:43:29 · 13 answers · asked by tuliji 1 in Biology

2006-07-01 17:42:16 · 10 answers · asked by Grbonk 1 in Biology

2006-07-01 17:40:44 · 7 answers · asked by lowonbrain 2 in Physics

If some solids, like ice, is heated, it becomes a liquid. If that is heated, it turns to a gas. Under my understanding, if a gas is exposed to very high temperatures (1000 degrees celcius), it turns to plasma. What happens to the plasma? Is there a fifth state of matter or does it just return to a gas form after cooling down? I'm not very familiar with plasma, only that it can be seen when lightning strikes and during the aurora. Are there any other places on earth where plasma can form naturally?

2006-07-01 17:37:02 · 4 answers · asked by Hrodulf 2 in Chemistry

Has anybody tried to feed manatees in the wild. I'm sure i'ts probably illegal but screw that. Would they come over for some fresh romanie lettuce, or perhaps a crisp, delicious apple?

2006-07-01 17:35:35 · 6 answers · asked by scott h 2 in Zoology

Somewhere I heard that it revitalises the human body as much as it does plants. How do the nitrates make plants greener and could nitrates have a sort of euphoric effect on humans? It might just be because I love lightning, but I always feel happier during a lightning storm. I'm from the Highveld in South Africa where we get significant lightning storms that light the sky up like a disco, so I'm not talking about a few flashes of lightning, I'm talking about a flash of lightning every three seconds.

2006-07-01 17:31:29 · 3 answers · asked by Hrodulf 2 in Other - Science

2006-07-01 17:27:26 · 5 answers · asked by JDawg1977 2 in Other - Science

Apart from the size and structure of a heavenly body, could their lack of an atmosphere somehow contribute to its low gravitational force?

2006-07-01 17:26:23 · 11 answers · asked by Hrodulf 2 in Physics

does it do any good what about dieases from the knives. or negative doctors.

2006-07-01 17:22:39 · 25 answers · asked by Sam 1 in Medicine

2006-07-01 17:21:47 · 10 answers · asked by jweetie 1 in Medicine

2006-07-01 17:20:57 · 13 answers · asked by Sam 1 in Medicine

Initial the time in both are the same after the some time what is the time in small pendulum clock.

2006-07-01 17:19:24 · 7 answers · asked by Anonymous in Physics

I mean, electricity is still a theory yet when I plug in my toaster it works. Gravity is still a theory yet we do not float off into space. Magnetism is still a theory yet we use it every day

2006-07-01 17:14:11 · 19 answers · asked by Rick 7 in Other - Science

2006-07-01 17:14:08 · 13 answers · asked by Bobby V 1 in Weather

2006-07-01 17:11:52 · 5 answers · asked by Chantae 2 in Astronomy & Space

2006-07-01 17:07:51 · 12 answers · asked by Omicron 1 in Biology

2006-07-01 17:01:43 · 39 answers · asked by Marilyn Monroe 2 in Astronomy & Space

Im sure we can make it happen. So when do you think it will?

2006-07-01 16:52:18 · 17 answers · asked by mnmnk00 2 in Astronomy & Space

2006-07-01 16:52:13 · 11 answers · asked by JOHN B 2 in Earth Sciences & Geology

2006-07-01 16:46:50 · 19 answers · asked by pinkflahippo16 2 in Physics

2006-07-01 16:41:03 · 36 answers · asked by Oscar F 1 in Mathematics

... in The Universe?


P.S. Dark Matter/Energy included.

2006-07-01 16:40:00 · 10 answers · asked by lowonbrain 2 in Physics

Why wait until there is a quake. Surely with all the scientific knowledge, this can be prevented.

2006-07-01 16:36:08 · 5 answers · asked by suz 1 in Earth Sciences & Geology

2006-07-01 16:33:44 · 38 answers · asked by JOHN B 2 in Earth Sciences & Geology

2006-07-01 16:32:29 · 3 answers · asked by Action Black 1 in Engineering

I know that plasma is an atom stripped of it's electrons with the nucleaus tightly packed, well since fire isn't solid liquid or a gas could it be plasma?

2006-07-01 16:31:58 · 5 answers · asked by Anonymous in Physics