Physics - December 2006

every action has an equal and opposite reaction

2006-12-18 00:08:57 · 8 answers · asked by fidel_ram 1

This is the signal that mobile tower is working all right. Why such signal is not received in radio/transistor?

2006-12-17 23:08:24 · 3 answers · asked by deepak57 7

a) the momentum of the gas is equayl but opposite in direction to the momentum of the rocket
b) gas pushes on the air at the back of rocket
c) change in momentum of the gas gives rise to a force on rocket
d) ejected gas creates a region of high pressure behind rocket

2006-12-17 23:03:36 · 4 answers · asked by Diana K 1

Would it stay in the earth's atmosphere, or just keep on going?

2006-12-17 23:03:00 · 6 answers · asked by Buster 3

2006-12-17 23:01:50 · 12 answers · asked by Ibi A 1

2006-12-17 22:55:57 · 3 answers · asked by carspare 2

A rock with a weight of 52N is found to have an apparent weight of 36N when completely submerged in water.The density of water is 1000kg m ^-3.(g=9.8N kg ^-1).Calculate the buoyant force acting on the rock when it is submerged in water??

2006-12-17 22:01:14 · 3 answers · asked by Rasathi 1

2006-12-17 21:43:47 · 2 answers · asked by carspare 2

2006-12-17 21:35:17 · 19 answers · asked by Ishfaq A 3

2006-12-17 21:27:31 · 4 answers · asked by Anonymous

2006-12-17 20:56:19 · 7 answers · asked by marionmartin66 1

Would it be correct to say that absence of energy there is no way to confirm the existent of "mass"?

2006-12-17 20:32:49 · 5 answers · asked by Programmer 1

2006-12-17 20:29:07 · 3 answers · asked by KrishanRam(Jitendra k) 3

If I was able to travel the speed of light into outer space and look back onto earth with a strong telescope, would I see myself in the past? from baby to adult-hood? Could I do anything to change how I've lived?by what means could I comunicate back at myself?

2006-12-17 20:28:00 · 10 answers · asked by SOL SIREN 2

2006-12-17 20:13:26 · 4 answers · asked by Ragh 1

I like this question. I will continue asking until someone answers correctly.

2006-12-17 19:55:04 · 11 answers · asked by wwwwwwwfe 1

" Ever-increasing amount of charges would lead to ever-increasing potential difference between two plates. If the capacitor’s working voltage is exceeded, or the strength of the ever-increasing electric field is more than what the dielectric can withstand, the capacitor is most likely to be spoiled. " So how do we know when the amount of charges and the voltage is exceeded? And how do we protect capacitors from this?

2006-12-17 19:42:08 · 4 answers · asked by iamlonely 1

If yes, how?

2006-12-17 19:35:04 · 10 answers · asked by deepak57 7

2006-12-17 18:17:03 · 8 answers · asked by Myself. 2

please help thanks

2006-12-17 18:15:56 · 4 answers · asked by Anonymous

I was thinking about the relativistic example of the scientist in a box. He feels an acceleration equal to the force of gravity, and is unable to determine if he is at rest on earth, or accelerating at 32 ft/sec squared through space (assume there are no windows in his box). Wouldn't a simple wrist-watch be a device that would answer this for him? I'm assuming that if you accelerated long enough, you would eventually reach the speed of light. So if you waited long enough with no apparent change in your acceleration, you might prove that you are at rest on Earth. Unless you could accelerate in one direction (i.e. not in an orbit) forever and somehow never reach the speed of light (is that theoretically possible?). Also, if gravitons are ever discovered, how would that change the scenario? Could you determine the presence of a large gravitational body like the Earth, or would acceleration itself produce gravitons?

2006-12-17 17:41:45 · 7 answers · asked by Billy 1

let's assume that a car engine provides a constant amount of power. The car accelerates from zero to 30 m/s.

2006-12-17 17:39:13 · 8 answers · asked by Anonymous

Is it true that you can bang it with a hammer repeatedly to destroy any magnetism?

2006-12-17 17:37:16 · 3 answers · asked by mawopi 1

2006-12-17 17:29:05 · 3 answers · asked by dewgongoo 2

I like this question. I will continue asking until someone answers correctly.

2006-12-17 17:11:45 · 13 answers · asked by wwwwwwwfe 1

2006-12-17 17:07:38 · 5 answers · asked by Minty 1

without wasting energy in heat disipation while conversion of 230/440v to 12/20v. because it increases heat load from computers, and such devices who gives out enrgy in terms of heat, and i think its lost of energy(electricity) which we produce after great cost(environmental losses)

2006-12-17 17:04:11 · 6 answers · asked by YOGI 1

2006-12-17 16:54:21 · 2 answers · asked by josh 2

If a loudspeaker can produce a sound pressure level of 83 dB for 0.5 W of input power at a distance of 0.75 m, estimate its efficiency in converting electrical power to acoustic power. Assume the sound is uniformly radiated into a hemisphere.

2006-12-17 16:35:08 · 2 answers · asked by raistlinfire 1

c'mom JAXON

2006-12-17 16:27:39 · 2 answers · asked by josh 2