The object must move with the speed of 
times to approximately seeing that it is contracted to exactly half of its actual length.
<h3>How is this calculated?</h3>
The length contraction experimented by the object as it approaches lightspeed, in meters per second, is described by Lorentz contraction formula:
Here, v is the current speed m/s
c is the speed of light in m/s
L' is the length of the object at rest in m
L is the length of the object at the current speed in m
Now we know that
and 
then,
Hence, r = 
Therefore, the answer is the object must travel at a speed of times the lightspeed to be contracted to one-half its proper length.
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Answer: C. Industrial.
Explanation:
Throughout human history, the first surpluses in production arose in the XIX. the century during the Industrial Revolution. Until then, it was mostly produced as much as needed. Mechanization in production for the first time contributed to creating surpluses in production, given that production was faster and more extensive than ever before. In these circumstances, Imperialism appears, due to the need to place surplus products and the market in all parts of the world.
In the early 1900's , a company often provided a company town, a place where the worker could live in the near working location ( usually like a mining location)
The workers usually were lured by the promise of high wage.
But here's the thing, in company town, a source of living usually can only obtained in a company store, and the cost is really high.
So instead of getting a high wage, the workers trapped in huge debt to the company, creating some sort of slavery that they have to work to pay off their debt to the company
Techincally, the company could easily bring those workers to the court ( even though is very cruel, they obtain the debt in a 'legal' way), so basically workers cant do a thing
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The answer to this question is <span> fixed ratio
In a </span> fixed ratio schedule of reinforcement, it requires <span>subjects to provides a set number of responses and a reward will be given after the completion of a certain numbers. Because of the high certainty, we will tend to receive high and steady rate of response if we use this type of schedule.</span>
