PLEASE HELP THIS IS VERY IMPORTANT I WILL GIVE YOU BRAIN THING IF ITS CORRECT NO LINKS PWEASE

How fast must an object move before its length appears to be contracted to one-half its proper length?

notsponge [240]

The object must move with the speed of $\frac{\sqrt{3} }2}$ 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:

$\frac{L}{L'} = \sqrt{(1) - (\frac{v}{c})^{2}$

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

$\frac{L}{L'}= \frac{1}{2}$ and $\frac{v}{c} = r$ then,

$\frac{1}{2} = \sqrt{1 - r^{2} }\\\frac{1}{4} = 1 - r^{2}\\r^{2} = \frac{3}{4}$

Hence, r = $\frac{\sqrt{3} }{2}$

Therefore, the answer is the object must travel at a speed of $\frac{\sqrt{3} }{2}$ times the lightspeed to be contracted to one-half its proper length.

To know more about the Lorentz contraction formula, visit:

brainly.com/question/17407131

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7 0

2 years ago

Andy goldsworthy uses ________ materials to create sculptures that are ephemeral.

AlexFokin [52]

Andy goldsworthy uses <u>natural materials</u> to create sculptures that are ephemeral. Andy Goldsworthy is a popular artist who is known for constructing complex and elaborate site-specific sculptures from natural materials. Hence, the correct answer is natural materials. Read below about sculptures.

<h3>What are sculptures?</h3>

Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts.

Therefore, the correct answer is as given above

learn more about sculptures: brainly.com/question/26864438

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4 0

2 years ago

A.Research Design (choose qualitative approach and what kind of qualitative research design you would like to use)

vodomira [7]

Answer:

i think it's C

hope this helps

7 0

2 years ago

Mahmoud was just told that his father has cancer. mahmoud's first response is that there must be a mistake and he demands that t

KatRina [158]

The correct answer is denial.

Denial is a defense mechanism in which an individual refuses to accept or believe something, because doing so would cause them great distress and emotional disturbance. In this instance, Mahmoud does not want to accept that his father has cancer due to which he denies the diagnosis and says that there has been a mistake in his father's diagnostic tests.

3 0

3 years ago

Of what relevance are the Glorious Revolution and the English Bill of Rights to government in the United States?

Marysya12 [62]

Answer: C. Many ideas concerning separation of powers and protection of rights were implemented in the United States.

The Glorious Revolution and The English Bill of Rights in a way or another influenced the government of the United States. Both present ways on how to set clear limits of powers in the country.

8 0

3 years ago