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Oksi-84 [34.3K]
3 years ago
11

Which does the big bang theory describe? a cool, dark singularity the origin of the universe the contraction of the universe an

explosion at the beginning of time
Physics
2 answers:
ivolga24 [154]3 years ago
7 0
The origin of the universe
Katen [24]3 years ago
3 0

The correct answer is B. The origin of the universe.

Explanation

The Big Bang Theory is the most popular theory about the origin of the universe, in which it is stated that the universe is the result of the great explosion of an initial particle. After this explosion, their materials expanded forming the universe. The union of atomic particles was what originated the planets, stars, and galaxies. Modern measurements place this moment of the Big Bang explosion 13,800 million years ago. The correct answer is B. The origin of the universe.

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interna

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How many basic states of matter exist?<br> three<br> two<br> five<br> four
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Solve for work when
BlackZzzverrR [31]

So, <u>the value of the work is approximately 84.65 J</u>.

<h2>Introduction</h2>

Hi ! Here I will help you to discuss the subject about work that caused by force in amount value of angle. Work is affected by the force and displacement.

  • If related to the magnitude of the force, the amount of work will be proportional to the magnitude of the applied force. Thats mean, if the value of the force that applied on it is greater, then the value of the work will be greater.
  • If related to the magnitude of shift, the amount of work will be proportional to the magnitude of shift of object. Thats mean, if the value of the shift on it is greater, then the value of the work will be greater.
<h3>Formula Used</h3>

The work done by a moving object can be expressed in the equation:

If the Angle Is Ignored

\boxed{\sf{\bold{W = F \times s}}}

If the Angle Effect on Work

\boxed{\sf{\bold{W = F \times s \times \cos(\theta)}}}

With the following condition:

  • W = work that done by object (J)
  • F = force that applied (N)
  • s = shift or distance (m)
  • \sf{\theta} = angle of elevation (°)

<h3>Solution</h3>

We know that :

  • F = force that applied = \sf{1.41 \times 10^4} N
  • s = shift or distance = 84.9 m
  • \sf{\theta} = angle of elevation = 45°

What was asked ?

  • W = work that done by object = ... J

Step by step :

\sf{W = F \times s \times \cos(\theta)}

\sf{W = (1.41 \cdot 10^4) \times 84.9 \times \cos(45^o)}

\sf{W = (1.41 \cdot 10^4) \times 84.9 \times \frac{\sqrt{2}}{2}}

\sf{W = 119.709 \times \frac{\sqrt{2}}{2}}

\sf{W = 59.8545 \sqrt{2}}

\boxed{\sf{W \approx 84.65 \: J}}

<h3>Conclusion</h3>

So, the value of the work is approximately 84.65 J.

3 0
1 year ago
Gravity, momentum, and friction are examples of:
alex41 [277]

Answer:

Gravity,momentum & friction are examples of FORCE.

Explanation:

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