Physics - July 2007

2007-07-07 07:55:45 · 4 answers · asked by osama I 2

2007-07-07 07:23:58 · 6 answers · asked by Anonymous

2007-07-07 06:53:17 · 2 answers · asked by Red Falcon 1

If the present Earth holds a population that is far greater than it ever has been, and also the fact that our technology is getting bigger and bigger; Skyscrapers, oil rigs, piping houses, it all adds up. Would that added weight have any significant affect to the Earth's total weight, and if so would that then cause the Earth's gravitational pull to increase while also lowering the Sun's gravitational pull on the Earth due to it being a bigger mass?

2007-07-07 06:48:41 · 5 answers · asked by Anonymous

Normally this is found in Joules. There is a reason why this basis of energy is incorrect. (?) It is found in the physics trilogy: E = mc2, m = E/c2, and c2 = E/m. The last of the three is that of a field of gravity or of physical time. The energy value here is the heat energy found within a mass. Were this concept to be consistent with all three equations, the first two would have to have "Q" (heat energy) as being the basis of those thoughts also. But "Q" is not the most basic form of energy in relation to c2 = E/m; it is that of "hf". This value describes energy within a moving mass as well as that of electromagnetic energy because mass is composed of electromagnetic energy. So, all three equations should properly have "hf" substituted in place of "E" due to it is actually this value all three agree upon.

2007-07-07 06:46:26 · 5 answers · asked by d_of_haven 2

2007-07-07 06:13:57 · 4 answers · asked by Anonymous

2007-07-07 06:02:50 · 9 answers · asked by rauf_arabiyani 1

According to Einstein's theory, clocks slow down while moving at speed, from the observer's pov. So, let's say a person travels at
80% of speed of light and completes a space travel. According to the traveler's watch, it would be 2 years. But it might be 20 years from our prospective. So we will age 20 years, but the traveler would age 2 years. Does that mean physically too? Like, people originally younger than the traveler
would be older than him?

2007-07-07 05:54:59 · 5 answers · asked by Legend 3

2007-07-07 05:41:36 · 4 answers · asked by kb1990 1

a compressed spring is dissolved in an acid where does the kinetic energy(of the spring) goes

2007-07-07 05:18:21 · 9 answers · asked by radha_sant 1

what is the acceleration of a plane that increases its speed from 800 km/hr in 5 seconds. give the solution.

2007-07-07 04:59:56 · 6 answers · asked by D.Angel Egeo 1

2007-07-07 04:53:07 · 4 answers · asked by Anonymous

2007-07-07 04:32:11 · 4 answers · asked by Anonymous

2007-07-07 03:47:14 · 11 answers · asked by Calchas 3

2007-07-07 02:52:27 · 14 answers · asked by John S2005 3

Quantum Physics tells us that the very act of observing something changes it, is this true or pop science nonsense?

2007-07-07 01:21:28 · 12 answers · asked by sarah kay 5

2007-07-07 00:31:34 · 11 answers · asked by Anonymous

water to cover the element. ??

2007-07-07 00:24:03 · 4 answers · asked by Anonymous

2007-07-06 23:57:10 · 12 answers · asked by prv 1

So my question is how a horse pull a cart?
i mean that if horse pulls the cart with some force forward so cart should also apply same amount of force in backward direction.(Newton's 3 law of motion)

2007-07-06 23:29:01 · 16 answers · asked by Vipul 1

If you have a boeing 737 flying at 35000 feet at 500 mph then there will be a higher pressure on the front-facing cockpit windows due to the air coming at it at 500 mph and being deflected up and to the side.

However the air pressure at altitude is itself a third of the pressure at ground level and certainly less than that inside the pressurised cabin.

So if you could open the front window, would air rush in, or out.

Are there any modes of flight where the two are equal?

2007-07-06 23:27:33 · 10 answers · asked by Anonymous

2007-07-06 23:19:32 · 7 answers · asked by thriztan m 1

2007-07-06 22:36:50 · 9 answers · asked by kustian 1

2007-07-06 22:27:12 · 6 answers · asked by ABHISHEK G 1

as we know that the same charges repeal each other ,and we also know that all proton are present in nucleus of an atom and electron are present in their orbits of the atom.than why they do not repeal each other?how they combine toghter in nucleus and in an orbits?

2007-07-06 22:25:41 · 4 answers · asked by kustian 1

Is the concept of time machine impossible

2007-07-06 21:29:06 · 14 answers · asked by manu t 1

a. find itsz speed after 1 sec; 2 secs
b. how far up does it travel
c. how long will it take to get back to the original time

the formula'sz vf = vi + (-g) t

2007-07-06 20:53:38 · 4 answers · asked by ' 3

2007-07-06 20:33:43 · 6 answers · asked by Anonymous

1. How long would it take a radio signal to reach a star that is 9 light years away?
a. nine years, b. you need to know the wavelength, c. you need to know the frequency, or d. you need to know the speed

2. Which type of polarized sunglasses would help reduce glare the best?
horizontally polarized, vertically polarized, or diagonally polarized?

3. An astronomer ovserves the light coming from a distant star. He notices several distinct bright lines in the spectrum. What kind of spectrum is he observing?
absorption, red-shift, emission, polarization, or ultraviolet?

thanks for your help! =)

2007-07-06 20:26:48 · 7 answers · asked by Jenny V. 2

the weak atomic force and the strong atomic force?

2007-07-06 19:51:33 · 8 answers · asked by ptery 5