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:
The Court ruled in Schenck v. United States (1919) that speech creating a “clear and present danger” is not protected under the First Amendment. This decision shows how the Supreme Court's interpretation of the First Amendment sometimes sacrifices individual freedoms in order to preserve social order. In Schenck v.
Explanation:
Answer: Children below working age were utterly dependent on their parents, and when those parents were unemployed-as was common in this age of double-digit joblessness-hunger often resulted. Surveys revealed that a fifth of New York City's children suffered from malnutrition at the height of the Depression (Mintz and Kellogg 1988, 140). In the impoverished coal regions of Illinois, Kentucky, Ohio, Pennsylvania, and West Virginia, the malnutrition rate may have exceeded 90 percent.
Explanation:
Answer:
Luisa finds and corrects an error in ___punctuation_______.
Explanation:
a) The paragraph omitted a comma punctuation mark after the word "campfire." When Luisa puts this comma after "campfire," the sentence becomes grammatically correct.
So the error that Luisa finds and corrects in the passage is the omission of comma punctuation. A comma punctuation mark gives a short break in a sentence. Full stop gives a long break.
Several reasons actually. The most important one was its location. Thanks to it it enabeled the trade with African, European and Asian countries. Another thing is that it also was a good place to start a war on other countries.
