My professor says that this statement is false. So we have to prove why this statement is false.
A spaceship moves away from you at 0.75c. If you shine a laser past the spaceship, the spaceship will observe the light to move 0.25c as it passes the spaceship.
A spaceship moves away from you at 0.75c. If you shine a laser past the spaceship, the spaceship will observe the light to move 0.25c as it passes the spaceship.
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There are 2 postulates associated with special relativity. The first one is that all the laws of newtonian physics have to be conserved in all frames of references, in other words you can't break the laws of newtonian physics in any frame of reference.
The second one is that the speed of light is always constant in all frames of references.
So the spaceship would still see the laser pass by it at the speed of light, c. This can be confusing because it would imply that an external observer would see that the speed of light would have to travel at 1.75c to 'catch up' with the spaceship in order for it to travel at 'c' relative to the spaceship. This doesn't happen and an external observer would see it travel at 'c' as well. To account for this, the only thing that can change is time, and there is time dilation occurring. The proper time will be experienced by the observer in the relativistic frame of reference, so the observer on the spaceship would experience proper time, whereas the external observer would experience dilated time, relative to the frame of reference of the spaceship. The ratio between time and proper time is known as the Lorentz (or gamma) Factor, and is given by the following equation: http://upload.wikimedia.org/math/3/7/1/3719b9a4cb1799b1c868fe0c68124e3b.png
The second one is that the speed of light is always constant in all frames of references.
So the spaceship would still see the laser pass by it at the speed of light, c. This can be confusing because it would imply that an external observer would see that the speed of light would have to travel at 1.75c to 'catch up' with the spaceship in order for it to travel at 'c' relative to the spaceship. This doesn't happen and an external observer would see it travel at 'c' as well. To account for this, the only thing that can change is time, and there is time dilation occurring. The proper time will be experienced by the observer in the relativistic frame of reference, so the observer on the spaceship would experience proper time, whereas the external observer would experience dilated time, relative to the frame of reference of the spaceship. The ratio between time and proper time is known as the Lorentz (or gamma) Factor, and is given by the following equation: http://upload.wikimedia.org/math/3/7/1/3719b9a4cb1799b1c868fe0c68124e3b.png
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Brother, there is nothing but hate in this question.Do you have no faith at all?
There is no mention of any other living beings outside of earth in the holy bible therefore they can need no mode of transportation.Your professor is very wrong to be implying that "aliens" exist. Why can the modern day people not accept this?
There is no mention of any other living beings outside of earth in the holy bible therefore they can need no mode of transportation.Your professor is very wrong to be implying that "aliens" exist. Why can the modern day people not accept this?
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One of the assumptions of the theory of special relativity is that light travels the same speed (in vacuum) in all frames of references:
http://en.wikipedia.org/wiki/Theory_of_r…
So the spaceship would see the light traveling at the speed of light.
http://en.wikipedia.org/wiki/Theory_of_r…
So the spaceship would see the light traveling at the speed of light.
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its moves 2/4 at a time