Write a note on "Geology".

Physics

1 answer:

Georgia [21]3 years ago

5 0

Answer:

the science that deals with the earth's physical structure and substance, its history, and the processes that act on it.

Explanation:

Hope that helps

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You want to close an open door by throwing either a 400-g lump of clay or a 400-g rubber ball toward it. you can throw either ob

gogolik [260]

Refer to the diagram shown below.

Let m = the mass (g) of the door.
Let v = the launch velocity
Let u = the velocity of the door after impact.

Elastic impact (rubber ball):
The rubber ball bounces off the door with presumably elastic impact, which means that both momentum and kinetic energy are conserved.
Conservation of momentum requires that
400v = -400v + mu
Therefore
$u=( \frac{800}{m} )v$

Inelastic impact (clay):
The clay sticks to the door after impact.
Conservation of momentum requires that
400g = (m+400)u
Therefore
$u=( \frac{400}{m+400} )v$

When we compare magnitudes of u for the door, we find that
$u_{1}=( \frac{400}{m} )(2v), \,\, elastic \\\\ u_{2}=( \frac{400}{m+400} )v , \,\, inelastic$
Clearly, the elastic impact creates a greater value of u for the door.

Answer:
The rubber ball creates a larger impulse to the door because the nature of its impact is approximately elastic.

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3 years ago

Ví dụ 1 : Hai vật xuất phát từ A và B cách nhau 400m chuyển động cùng chiều theo hướng từ A đến B. Vật thứ nhất chuyển động đều

Mashcka [7]

Answer:

Ví dụ 1 : Hai vật xuất phát từ A và B cách nhau 400m chuyển động cùng chiều theo hướng từ A đến B. Vật thứ nhất chuyển động đều từ A với vận tốc 36km/h. Vật thứ hai chuyển động đều từ B với vận tốc 18km/h. Sau bao lâu hai vật gặp nhau ? Gặp nhau chỗ nào

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3 years ago

Kind of mixture that has the same mixture throughout

Ainat [17]

It's a homogeneous mixture
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3 years ago

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What causes convection currents, and what do they do?

frez [133]

Answer:

Convection currents are the result of different heating. Lighter material (warm) rises while heavier (cold) material sinks. This movement of the materials is what causes convection currents! (BTW, it happens in water, in the atmosphere, and in the mantle of Earth!

Explanation:

I hope this helps a little! :)

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3 years ago

Where would you most likely find regional metamorphism? associated with a mountain belt associated with a volcano associated wit

vladimir1956 [14]

Regional metamorphism is a type of metamorphism in which the minerals and the textures of the rocks are changed or altered due to the effect of pressure and heat over a wide area or region.
This type of metamorphism often results in metamorphic rocks that are strongly foliated.
Metamorphism usually occurs in the folds of thrust mountain belts.

Answer: You would most likely find regional metamorphism associated with a mountain belt.

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3 years ago

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Write a note on "Geology".​

Write a note on "Geology".