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2 years ago

Explain the meaning of the word civilization

Social Studies

2 answers:

Dmitry [639]2 years ago

7 0

Answer:

The stage of human social and cultural development and organization that is considered most advanced.

VladimirAG [237]2 years ago

3 0

A group of humans that work together and live to form a civilisation

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A basketball is dropped from the edge of a cliff at the same time that second basketball is thrown upward from the ground. When

pentagon [3]

Answer:

The collision occurs at a height of 1/3 of the total height of cliff.

Explanation:

The situation is represented in the attached figure:

For the stone dropped from top of cliff we have

Initial velocity of drop= 0 m/s.

Now the time at which it attains a velocity of 2v is obtained from first equation of kinematics as

$v_{f}=u_{i}+gt\\\\2v=0+gt\\\\\therefore t=\frac{2v}{g}$

Thus the distance it covers in this time can be calculated using third equation of kinematics as

$v_{f}^{2}=v_{i}^{2}+2gh\\\\(2v)^{2}=2gh_{1}\\\\\therefore h_{1}=\frac{2v^{2}}{g}$

For the stone thrown upwards the velocity at collision is give as 'v' thus the velocity at which it is thrown upwards can be calculated by first equation of kinematics as

$v=v_{i}-gt\\\\\therefore v_{i}=v+gt\\\\v_{i}=v+g\times \frac{2v}{g}\\\\\therefore v_{i}=3v$

The height over which it changes it's velocity from '3v' to 'v' can be again obtained from third equation of kinematics as

$v^{2}=(3v)^{2}-2gh_{2}\\\\v^{2}=9v^{2}-2gh_{2}\\\\\therefore h_{2}=\frac{4v^{2}}{g}$

$\therefore h_{2}=2h_{1}$

Thus the collision occurs at at a fraction of 1/3 of height.

6 0

3 years ago

What is one thing that the Federal Reserve CANNOT do to help the economy during this coronavirus pandemic?

Rufina [12.5K]

Answer:

https://www.stlouisfed.org/open-vault/2020

Explanation: Hello, here are a few sites for you that i found. Your very welcome!

4 0

2 years ago

The difference between positivism and antipositivism relates to:

sp2606 [1]

Answer:

Whether sociological studies can predict or improve society

Explanation:

The antipositivism proposes that social science researchers must first be aware that the concepts, ideas and language of research shape their perception of the social world under investigation. On the other hand, positivism believes that a theory can only be taken for granted if it is proven from valid scientific techniques.

According to these concepts, we can conclude that the difference between positivism and antipositivism is better represented by the option: "whether sociological studies can predict or improve society ".

8 0

3 years ago

When evaluating characters on a tree, every synapomorphy is also an symplesiomorphy ( or will become an symplesiomorphy in the f

Aleonysh [2.5K]

<span>A synapomorphy refers to one specific characteristic of an ancentral species while a symplesiomorphy is the overall traits of the ancentral species (would include many characteristics)
Because of this, we could say that a synapomorphy is just a subgroup of a symplesiomorphy</span>

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3 years ago

Because there is only a small amount of distortion over a local area, which type of map is used for road maps and weather maps?

forsale [732]

A conic projection map is used for road maps and weather maps because there is only a small amount of distortion over a local area. A conic projection map is a semicircular map where meridians are generally straight and equally-spaced.

7 0

3 years ago