Physics - May 2007

i have measured distance and calculated speed and time is first 0.04 s (not 0.02 s because i skipped one dot at a time ) then 0.08 s ....0.16 , distance 2.3cm, 2.9cm, 3.5cm,5 for 0.04,0.08,0.012,0.016. so could u help me with the graph?

2007-05-16 06:41:27 · 4 answers · asked by Anonymous

2007-05-16 06:29:05 · 4 answers · asked by rama rama 1

The big bang theory has no evidence and has never been tested!

2007-05-16 06:26:03 · 13 answers · asked by Arvid 2

2007-05-16 06:13:48 · 7 answers · asked by Alexander 6

So obviously the question is in the title. Would a compass be attracted to an electro-magnet?

The reason a compass does point north is because the earth has a large magnetic field caused by electricity running through the core of the earth. What I am wondering is, could a compass be attracted to a large magnet? It makes sense that it could be, but I am not really sure. Thanks

2007-05-16 06:06:00 · 7 answers · asked by Just Curious 2

When I ride my bike, some hills look hard but are easy and some look easy but are hard. Is this an optical illusion or can gravity have a different pull at different places?

2007-05-16 05:52:19 · 20 answers · asked by mscottexas 2

Thanks for your help.

2007-05-16 05:27:06 · 2 answers · asked by Anonymous

I feel like I have a pretty good understanding of the uncertainty principle in quantum mechanics (the idea being that uncertainty arises from the failure of two operators to commute). however, energy-time uncertaintly doesn't seem to fit that framework, since time is not an operator.

does energy-time uncertainty exist in quantum mechanics, or does it only arise in quantum field theory, where it's really energy/momentum-spacetime uncertainty?

and what does energy-time uncertainty mean for practical purposes? something like "the better we know the energy, the less well we know when it happened"??

2007-05-16 05:11:12 · 4 answers · asked by Anonymous

consider the hollow cone to be made of a number of circular rings

2007-05-16 05:04:29 · 3 answers · asked by M P 1

If we take glass fiber with refraction index n=2 and make it
move with speed c/2 in oppoosite direction?

If we do succeed in stopping the light, where is polarizaion Sx = 0?

2007-05-16 04:42:44 · 2 answers · asked by Alexander 6

2007-05-16 04:26:47 · 8 answers · asked by Anonymous

How many joules of energy are required to raise the temperature of 130 g of gold from 15.0°C to 85°C?
_____J

2007-05-16 04:06:25 · 4 answers · asked by Emma 1

I have heard that you'll have to use 2 set squares but I don't know how to.
Thanks for your help.

2007-05-16 04:01:03 · 4 answers · asked by Anonymous

How do you caculate the uncertainty and percentage uncertainty of a time which you have taken to be 26.34s?
Thanks for your help.

2007-05-16 03:57:56 · 2 answers · asked by Anonymous

Time is apparently relative in the sense that objects that move very fast also zip through time faster. This was proven by an atomic clock on an airplane that "ticked" ever so slightly slower than an identical clock on the ground? Right? Anyway, if those two clocks were moving relative to each other, why would one zip through time and the other move through time at a "normal" pace? If the two clocks are brought back together after the trip, who is to say which one was "moving really fast" and which one was stationary if they were only moving relative to each other. In other words...For pilots on the airplane, they would experience normal pace of time, so why wouldn't they see that the Ground clock which was moving relative to them, ticked at a slower pace?

2007-05-16 03:53:32 · 8 answers · asked by Christopher L 2

2007-05-16 03:41:42 · 3 answers · asked by Anonymous

2007-05-16 03:28:27 · 8 answers · asked by Anonymous

2007-05-16 02:39:53 · 3 answers · asked by lola 1

??

2007-05-16 02:39:25 · 5 answers · asked by Marianne C 1

A. NaC1O3>NaC1+O2

B. MnC12+A1>Mn+A1C13

C. C4H10+O2>H2O+CO2

2007-05-16 02:30:36 · 4 answers · asked by HMMMMM 1

Hello,

I have got the following physics problem.

Boat's engine during 1 second can give speed v to L litres of water. What is the maximum speed of boat, if its mass is equal to M?

Could anyone help me with this?

Thanks in advance.

2007-05-16 01:56:54 · 4 answers · asked by Pythagor 1

2007-05-16 01:54:12 · 12 answers · asked by Rajio 1

2007-05-16 01:41:29 · 3 answers · asked by Ramesh P 1

Why does the laser in my mouse not show up on anything [walls etc] but if I look at the right angle at the mouse I can see it?

2007-05-16 01:37:55 · 5 answers · asked by Status: Paranoia 4

2007-05-16 00:43:10 · 6 answers · asked by Anonymous

Just reading Dan brown’s Angles and demos, so my question is can scientists really make antimatter?

2007-05-15 23:12:34 · 7 answers · asked by preenster 2

Can you explain how scientist explain gravity is proportional to mass? How can parts of Canada be low in gravity than all of the other regions?

2007-05-15 21:16:53 · 8 answers · asked by high-lighter 3

charges how do they nullify with our blood

2007-05-15 20:37:29 · 2 answers · asked by jingle 1

2007-05-15 20:33:00 · 20 answers · asked by renu m 1

Is gravity a force or is it the pressure of the atmosphere that keeps us on the ground? If it is a force ,how is it created?

2007-05-15 20:22:47 · 16 answers · asked by dave r 2