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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A famous elm tree that stood in boston
Answer:
Explanation:
After World War II, defeated Germany was divided into Soviet, American, British and French zones of occupation. The city of Berlin, though technically part of the Soviet zone, was also split, with the Soviets taking the eastern part of the city. After a massive Allied airlift in June 1948 foiled a Soviet attempt to blockade West Berlin, the eastern section was drawn even more tightly into the Soviet fold. Over the next 12 years, cut off from its western counterpart and basically reduced to a Soviet satellite, East Germany saw between 2.5 million and 3 million of its citizens head to West Germany in search of better opportunities. By 1961, some 1,000 East Germans—including many skilled laborers, professionals and intellectuals—were leaving every day
In August, Walter Ulbricht, the Communist leader of East Germany, got the go-ahead from Soviet Premier Nikita Khrushchev to begin the sealing off of all access between East and West Berlin. Soldiers began the work over the night of August 12-13, laying more than 100 miles of barbed wire slightly inside the East Berlin border. The wire was soon replaced by a six-foot-high, 96-mile-long wall of concrete blocks, complete with guard towers, machine gun posts and searchlights. East German officers known as Volkspolizei (“Volpos”) patrolled the Berlin Wall day and night.
The federalist position on the adoption of the Constitution was the argument of the difficulties facing republic which could be overcome only by the new government based on the Constitution.
The answer is more because according to the definition of the theory of social facilitation, social facilitation is the tendency for people who are being watched or observed to perform better than they would alone on simple tasks (or tasks they know how to do very well due to repetition).
Answer: more
