Physics - March 2007

2007-03-14 20:25:28 · 4 answers · asked by MOHAMMAD A 1

I can write my name too in this liquid/mist.

2007-03-14 20:08:46 · 5 answers · asked by Anonymous

I have heard that some paired electrons are linked through the space between them. For example if you manipulate the phase of one the other will change in concert no matter the distance. If this is so, can we make a binary device that would be able to communicate over vast distances?

2007-03-14 19:51:20 · 4 answers · asked by Anonymous

2007-03-14 19:47:58 · 3 answers · asked by MOHAMMAD A 1

We know that t=t0/{1-(v/c)^2}, t0 is the time experienced by a person traveling at v speed in a space ship, t is the time that is experienced by a stationary observer on the earth.
None of the reference frame is more fundamental than other. So we can assume the space ship to be stationary and the planet earth is in motion( i.e -v). So easily opposite of the formula can be proven. That is : t0=t/{1-(v/c)^2},
In the first case time is dilated for the spaceman. And in the second it is true for the person on the earth. Which one is the truth? If both, How possible!

2007-03-14 19:44:21 · 6 answers · asked by Anonymous

a moving object, x has a mass, M, and speed, V.another moving object Y has twice the momentum of x.the mass and velocity of Y are...
A. 4 M, V
B. 4 M, 1/2 V
C. 2 M, V
D. 2 M, 1/2 V

2007-03-14 19:01:15 · 4 answers · asked by xTzoX 1

2007-03-14 18:35:43 · 4 answers · asked by Anonymous

2007-03-14 18:27:21 · 2 answers · asked by harmnewt 1

One mass of amatter always attracts each other and never repells. Why it happens so.?If there is no probability of repelling each other then is it mathematically established or not. Charged bodies repell each other when they are of same charge or of same polarity may be for resisting more build up at the same point. Opposite cgarges may attarct each other to neutralize for more stability & less build up. I imagine gravitational power may be affected by the speed or rotational speed,Is there any mathematical limitation against this imagination. In case of subatomic particle mass is velocity dependent.

2007-03-14 18:23:44 · 6 answers · asked by chaitanya 1

And don't say nothing because thats B.S!

2007-03-14 18:18:48 · 7 answers · asked by Anonymous

Johnny is driving and frankie is the passenger they are going 50 mph so what is frankie's speed according to johnny's viewpoint? Bobby is on the corner as they pass what is franie's speed according to bobby's viewpoint and last a helicopter is above what is frankie's speed according to the copter's viewpoint?

2007-03-14 18:12:21 · 3 answers · asked by stayin alive 2

A gas at 25 deg C and amospheric pressure fills a cylinder. The gas is transferred to a new cylinder with three times the volume, afer wwhick the pressure is half the original pressure. What is the new temperature of the gas?

10000 cm^3 of 200 degC steam at a pressure of 20 atm is cooled until it condenses. What is the volume of the liquid water, in cm^3?

2007-03-14 18:10:41 · 2 answers · asked by Anonymous

a bowling ball a baseball a bird feather

2007-03-14 18:03:44 · 6 answers · asked by stayin alive 2

Jean, who likes physics experiments, dangles her watch from a thin piece of string while the jetliner she is in takes off from Dulles Airport (Fig. 4-55). She notices that the string makes an angle of 25° with respect to the vertical while the aircraft accelerates for takeoff, which takes about 16 seconds. Estimate the takeoff speed of the aircraft.

2007-03-14 17:56:22 · 3 answers · asked by Anonymous

2007-03-14 17:46:18 · 2 answers · asked by n a s i m 1

A hot air balloonist, rising vertically with a constant velocity of magnitude 5.00 m/s releases a sandbag at an instant when the balloon is 40.0m above the ground. After it is released, the sandbag is in freefall.
a) Compute the position and velocity of the sandbag at 0.250 s and 1.00 s after its release.
b) How many seconds after its release will the bag strike the ground?
c) With what magnitude of velocity does it strike?

2007-03-14 17:34:41 · 1 answers · asked by Anonymous

A diamond ring is thrown from the roof of a building 12.0m above ground. You may ignore air resistance. For the motion from her hand to the ground, what are the magnitude and direction of
a) the average velocity of the ring
b) How many seconds after being thrown does it strike the ground?
c) What is the speed of the ring before it strikes the ground?

2007-03-14 17:31:01 · 2 answers · asked by Anonymous

gluons, bosons, hadrons, fermions, mesons and so many of those -ons.. i have no idea how they are linked. could somebody tell me how they r linked?

2007-03-14 17:17:58 · 6 answers · asked by logic 3

If the Earth is moving so quickly, why do we not feel this movement?

2007-03-14 17:11:34 · 4 answers · asked by Dude 1

I want the specifics. Like is it because the tube contains vacuum, and do balance the atm. pressure, it will rise?

2007-03-14 17:10:28 · 2 answers · asked by Chocolate Strawberries. 4

be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth?_____rad/s

Hey guys, I have tried this problem many times and its driving me nuts. Can you please show me how to get to the correct answer? Thanks!

2007-03-14 17:08:04 · 1 answers · asked by cosmo 1

an aquarium filled with water has flat glass sides whose index of refraction is 1.52 A beam of light from outside the aquarium strikes the glass at a 43.5degree angle perpendicularly. What is the angle of this light ray when it enters the glass and then the water? what would be the refracted angle if the ray entered the water dircelty? Presuming the outside of the glass is air. Please help!!

2007-03-14 16:57:26 · 2 answers · asked by Anonymous

0.5 kg leads to an acceleration of 1 m/s up the incline. What is the coefficient of kinetic friction between block and incline?

2007-03-14 16:55:18 · 2 answers · asked by Anonymous

the bed and box is 0.40. What is the maximum magnitude of deceleration that keeps that box from sliding across the bed?

2007-03-14 16:51:11 · 1 answers · asked by Anonymous

block and incline is 0.35. The block is attached by a cord that lies over a pulley at the top of the incline to another hanging block. if the system is to remain at rest, what is the maximum mass of the hanging block?

2007-03-14 16:47:29 · 1 answers · asked by Anonymous

and examples of each please

2007-03-14 16:45:33 · 5 answers · asked by Bao Wow 3

This is a physics question. My main question is...does length have anything to do with newtons?

2007-03-14 16:07:45 · 2 answers · asked by Dorath 2

2007-03-14 16:07:21 · 2 answers · asked by Anonymous

An assembly line has a staple gun that rolls to the left at 1.20 m/s while parts to be stapled roll past it to the right at 2.90 m/s. The staple gun fires 14.0 staples per second. How far apart are the staples in the finished part?

2007-03-14 15:56:53 · 1 answers · asked by RelientKayers 4

is there an avatarthat can control all elements in the real world?

2007-03-14 15:54:09 · 5 answers · asked by josemenitsilvano 1