Physics - August 2007

2007-08-17 03:41:39 · 7 answers · asked by ayecajoy 1

2007-08-17 03:39:30 · 1 answers · asked by ayecajoy 1

2007-08-17 03:37:00 · 6 answers · asked by ayecajoy 1

Also, was Newton aware during his lifetime of just how out of the ordinary his thinking power was?

2007-08-17 03:14:11 · 4 answers · asked by Anonymous

when temperature and pressure are proportional to each other why viscosity is indirectly and directly proportional to temperature and pressure?

2007-08-17 02:22:48 · 2 answers · asked by Anonymous

Period (T) is independant of pendulum mass. why is this?

i was given this: (hint: think of galileo)

2007-08-17 01:21:38 · 2 answers · asked by godin_detour_red 2

Why are the wavelengths of light emitted by an atom unique to that atom ?

2007-08-17 00:41:23 · 4 answers · asked by luganlove 2

2007-08-17 00:10:33 · 3 answers · asked by mira86 1

2007-08-16 22:12:54 · 2 answers · asked by balqis 1

2007-08-16 22:11:23 · 1 answers · asked by balqis 1

2007-08-16 21:33:52 · 5 answers · asked by ayecajoy 1

2007-08-16 20:20:26 · 1 answers · asked by dannydart 2

N type doped silicon has 5.1x10^28 silicon atoms per m³. Given that only 1 in 200000 atoms is replaced by the doping element, how many electrons per m³ are there?

2007-08-16 20:01:49 · 4 answers · asked by Anonymous

If a computer exists which is many millions of times more powerfull than the human brain, will it make it rather pointless for us to learn how to do things?

2007-08-16 18:36:01 · 4 answers · asked by Chris tf 2

I mean, why haven't we figured out what gravity is yet?

2007-08-16 17:24:13 · 5 answers · asked by Atlas 6

How do I prove this?

2007-08-16 17:03:47 · 3 answers · asked by TAS B 1

Do you think you can help me on my physics homework? I got stuck on number two and the problem reads: The period of a simple pendulum, defined as the time for one complete oscillation, is measured in time units and given by T equals two pi square root of l over g where l is the lenghth of the pendulum and g is the acceleration due to gravity, in units of lenght divided by time squared. Show that this equation is dimensionally consistent.

2007-08-16 16:16:20 · 2 answers · asked by Anonymous

For those whom "know", please forgive this simpleton Question. Do we actually know for a fact via visual magnification that atoms and protons etc. are real? Or are they Quantum theory?. And following on from this, but not related, why is Q theory so trusted?.
To me it seems as irrelevent as UFO theories. Mathematical equations in QT are all guess'. Where is the proof that QT is fact? Proof is everything, and the fact that fields medal winners can't prove their equations outside QT; to me says they are wasting time and money on fantasy.
Surely physical facts must be proved physically to be fact! I realise QT is "widely" acknowledged to be fact, but until it is actual fact, why is it so relied upon?
All arguements welcome. P.s. For ten points you will need to answer all questions.

2007-08-16 15:16:40 · 6 answers · asked by pjklondon 2

well we all know that the more the mass the more the gravity right?

and we all know that einsteins theory or relativity states that there is this thing called matterenergy and when objects mass's decrease, the energy increases. so then if that happens then that would mean that if an object has more mass, it has less energy. and it has to make up for that (because everything in nature tries to be equal) and so it makes up for that by pulling in the energy from other matter, which also makes the objects mass bigger thus increasing the gravity.

this works out cause everything in nature tries to equal out, like osmosis.

what do you think?

nd btw. legally you cannot steal this idea, so dont even try unless you want to face some jailtime or a lawsuit

2007-08-16 13:36:49 · 8 answers · asked by Anonymous

Can know who he is or where he is, but not both?

2007-08-16 12:56:07 · 6 answers · asked by Anonymous

2007-08-16 11:33:05 · 1 answers · asked by Alexander 6

http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/08/16/scispeed116.xml


If this is true, it changes EVERYTHING.

2007-08-16 10:44:39 · 13 answers · asked by Beetso 2

Can someone please help me? "electric power"

16. What turns ratios would be required for transformers that change;

a) 20 000V to 500 000V (at the power station)

b) 500 000V to 11 000V (at a sub-station)

c) 11 000V to 240V (at a pole-type transformer)

this is what i have been trying to do, is it correct?

16a. 20 to 500
b. 500 to 11
c.

2007-08-16 10:17:16 · 2 answers · asked by ahahahaha 1

read title

2007-08-16 10:07:05 · 4 answers · asked by Maksymilian A 1

My class is using the 4th, but I want to know if I can use the 5th b/c I already ordered it.

2007-08-16 10:00:28 · 4 answers · asked by J Z 4

how would you measure the speed of gravity and how do you think there gonna harness it?

2007-08-16 09:58:11 · 9 answers · asked by Anonymous

2007-08-16 09:48:58 · 1 answers · asked by Anonymous

2007-08-16 09:45:56 · 6 answers · asked by Anonymous

what will be the new period of the Moon?
Right now T = 28 days.


No rockets, just use long ropes to pull the rocks.

2007-08-16 09:35:12 · 4 answers · asked by Alexander 6

2007-08-16 09:26:49 · 2 answers · asked by Anonymous