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kow [346]
3 years ago
13

Discuss whether or not human activities could lead to speciation. Explain your reasoning. Click

Social Studies
1 answer:
aliya0001 [1]3 years ago
3 0
It is unlikely that current human activities could lead to speciation, as speciation requires random variations to be isolated from the rest of a population. In our ever-connected modern world, this is less and less achievable
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What things are needed for the development of a country?
alexira [117]

Capital resources

Public awareness on the need to develop the country

Human Resources

Labour

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What year was george Washington elected
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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:

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7 0
2 years ago
The inflation rate measures the percentage change in the price index. True or False
a_sh-v [17]

Answer: True

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The goods which are considered under inflation are based on whether they fall under the prevalent consumption basket in that country.

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A price index refers to an average price of particular good or services in a particular region at a certain period.

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4 years ago
How does rodriguez compare his own attitudes towards reading to his parents' attitudes toward reading?
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Rodriguez compare his own attitudes towards reading to his parents' attitudes toward reading that they are not as intelligent as his teachers.

Paralleling the  Rodriguez's education were the increasing contrary feelings Rodriguez was developing toward his parents. While he did not mean to be hurtful and rude towards them, he found that he was  becoming angry when they did not seem to be with the same capabilities as his teachers have . Moreover  as a student, Rodriguez looked toward his teachers, and not his parents, as the role models for him.

In this way he compared his own attitude as a scholarship boy with his parents.

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