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3 years ago

What is the study of the cosmos? The study of the cosmos includes what topics?

Physics

2 answers:

densk [106]3 years ago

8 0

Answer:

Cosmos is a Greek word which is used for universe. Study of cosmos means study of universe which is known as cosmology. Cosmology is a branch of physics in which evolution of universe and composition of universe is studied.

Explanation:

Cosmos is a Greek word which is used for universe. Study of cosmos means study of universe which is known as cosmology. cosmology is a branch of physics in which evolution of universe and composition of universe is studied.

The topic covered in the study of the cosmos are as follows:

1. How universe is evolved

2. Composition of universe

3. Study of stars

4. Composition of stars

5. Geometry of universe

6. History and future of universe

7. Expansion of universe

Gennadij [26K]3 years ago

6 0

The study of cosmos is of the large scale structures & evolution of the universe, it encompasses the origin, evolution, composition, and the eventual face of the universe.

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Answer:

(a) The initial speed required is 13116 m/s

(b) The escape speed is 10394 m/s

This problem involves the application of newtons laws of gravitation. The forces in action here are conservative and as a result mechanical energy is conserved.

The full calculation can be found in the attachment below.

Explanation:

In both parts (a) and (b) the energy conservation equation were used. Assumption was made that when the object is very far from the planet the distance from the planet's center approaches infinity and the gravitational potential energy approaches zero.

The calculation can be found below.

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3 years ago

A box of mass 10 kg is pulled from the hold of a ship with an acceleration of 1 m/s^2 by a vertical rope attached to it .find th

wlad13 [49]

F=ma
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3 years ago

A 1kg ball is dropped (from rest) 100m onto a spring with spring constant 125N/m. How much does the spring compress?

Anastasy [175]

Answer:

3.95 m

Explanation:

m = 1 kg, h = 100 m, k = 125 N/m

Let the spring is compressed by y.

Use the conservation of energy

potential energy of the mass is equal to the energy stored in the spring

m x g x h = 1/2 x ky^2

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4 years ago

A 0.50-kg croquet ball is initially at rest on the grass. When the ball is struck by a mallet, the average force exerted on it i

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The impulse given to the ball is equal to the change in its momentum:

J = ∆p = (0.50 kg) (5.6 m/s - 0) = 2.8 kg•m/s

This is also equal to the product of the average force and the time interval ∆t :

J = F(ave) ∆t

so that if F(ave) = 200 N, then

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2 years ago