Speed of light viewed by stationary observer

AI Thread Summary
When an object travels close to the speed of light, a stationary observer will notice three key differences compared to observing the same object at non-relativistic speeds. These differences typically include time dilation, length contraction, and the Doppler effect. Time dilation means that time appears to pass more slowly for the moving object relative to the observer. Length contraction indicates that the object appears shorter in the direction of motion. The Doppler effect alters the perceived frequency of light, affecting the object's color as it approaches or recedes from the observer. Understanding these concepts is crucial for grasping the implications of relativistic speeds.
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Homework Statement


Describe what happens to an object traveling close to the speed of light from
the point of view of a stationary observer.
(Hint--there are three differences).


The Attempt at a Solution


I just don't understand what it means by there being three differences?
 
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panther2041 said:

Homework Statement


Describe what happens to an object traveling close to the speed of light from
the point of view of a stationary observer.
(Hint--there are three differences).


The Attempt at a Solution


I just don't understand what it means by there being three differences?
It is asking what characteristics differ (and how they differ) from that of the same object viewed in the observer's own frame ( or in a frame moving at non-relativistic speeds relative to the observer).

Unless one is talking about such things as colour, I can only think of two things that are different.

AM
 

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