Physics - July 2007

...if a leaf or a rock fell in the forest would there be a sound if no one was there to hear it? Is everything a mute outside of any hearing range?

2007-07-27 06:44:40 · 7 answers · asked by Anonymous

2007-07-27 06:43:47 · 4 answers · asked by happygirl25 2

What is the cosmological design???Help!!!!

2007-07-27 05:59:34 · 4 answers · asked by happygirl25 2

Roberto invested some money at 6%, and then invested $5000 more than twice this amount at 11%. His total annual income from the two investments was $4470. How much was invested at 11%?

2007-07-27 05:43:31 · 2 answers · asked by koka 1

In the morning, May drove to an appointment at 50 mph. Her average speed on the return trip in the afternoon was 40 mph. The return trip took 1/2 hour longer. How far did she travel to the appointment?

2007-07-27 05:42:45 · 1 answers · asked by koka 1

2007-07-27 05:32:29 · 1 answers · asked by susanlim s 1

2007-07-27 04:32:48 · 11 answers · asked by chris g 1

give me detail report about cathodray tube. (or) give me website address about to know about better in physical science of 10th ICSE.especially in the lesson producing &using stream of electrons.

2007-07-27 03:48:10 · 1 answers · asked by priya d 1

Is it Sci-Fi that sound can cause damage to an object?

2007-07-27 03:45:02 · 18 answers · asked by Ady P 1

2007-07-27 03:31:29 · 11 answers · asked by manish u 1

2007-07-27 02:15:55 · 5 answers · asked by Anonymous

2007-07-27 01:46:17 · 4 answers · asked by Anonymous

Is it possible to understand Electromagnetic waves theory, without knowledge of partial differentiation?

2007-07-27 01:15:20 · 8 answers · asked by Eltromeche E 1

2007-07-27 01:12:17 · 8 answers · asked by Anonymous

2007-07-27 01:01:54 · 1 answers · asked by Anonymous

If you see your reflection in mirror, then your right hand is the left hand of the your reflection and vice versa. Why same does not happen with up and down?

2007-07-27 00:49:45 · 10 answers · asked by Peter Lustmolch 2

2007-07-27 00:46:00 · 2 answers · asked by chandrika a 1

Does a rechargeable battery weigh more when it charged than when it's not? When charged, it's full of electrons, which are energy, but energy =mass (*c^2, of course). So the difference might be tiny but IS there a difference?


p.s. or is there some kind of weird electro-gravity thing going and it actually weighs less!?

2007-07-27 00:39:41 · 4 answers · asked by AmigaJoe 3

I've just read 'In Search of Schrodinger's Cat' by John Gribbin. In it, he talks of Bell's Inequality and why it solved the final thought experiment posited by Einstein.

He didn't go into it in too much detail and I would be very interested to examine the structure and results of the experiment in order to satisfy my curiosity.

Can anyone explain it to me or any of the other analogous experiments or give me a link that I can use?

TY

2007-07-27 00:37:06 · 2 answers · asked by tuthutop 2

2007-07-26 23:08:14 · 16 answers · asked by Anonymous

do u know what's antimatter?if u do,is it real(exists)?

2007-07-26 22:06:52 · 8 answers · asked by Anonymous

2007-07-26 21:15:06 · 3 answers · asked by Anonymous

2007-07-26 20:52:57 · 9 answers · asked by aelgani n 1

Two cups are filled to the same level with water. One of the two cups has a ping pong ball floating in it. Which of the two cups weighs more?

2007-07-26 20:20:44 · 7 answers · asked by Anonymous

2007-07-26 19:02:40 · 3 answers · asked by Previn G 1

An amphibious car of sorts that would travel on ice, and if fell through would be able to (using hydraulic rams) get out of the ice, or float and sail in it, had it been thin enough.

Possible?

2007-07-26 19:01:11 · 2 answers · asked by Raz 1

Two hoses, one of 2.0cm diameter, the other of 1.0cm diameter are connected one behind the other to a faucet. At the open end of the hose, the flow of water measures 1.0L/min. Through which pipe does the water flow faster?

2007-07-26 18:55:37 · 1 answers · asked by Anonymous

I just need some help on this.

Why is there are stronger effect of gravity on the North Pole than anywhere else in the world?

All help will be appreciated!

2007-07-26 18:29:30 · 29 answers · asked by penguinleo 1

newton's third law governs the interaction between the earth and the moon. it states that for every action there is an equal yet opposite reaction. so if the earth exert a force the moon will also exert an equal force so what about meteors?

2007-07-26 16:34:33 · 5 answers · asked by Anonymous

A crate is sliding down a ramp that is inclined at an angle 42.4 ° above the horizontal. The coefficient of kinetic friction between the crate and the ramp is 0.260. Find the acceleration of the moving crate.

2007-07-26 16:17:37 · 2 answers · asked by Anonymous