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erastova [34]
3 years ago
8

What happens in the process of gravitational condensation?

Physics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

An object decreases in size due to the collision of materials. An object increases in size due to the addition of materials. Gas particles are formed from solar nebula materials.

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Explanation:

Given

Initial reading on scale =40 N

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After this a 10 N force is applied upward on the sack such that the net force becomes (40-10) N downward (because downward force is more)

This net downward force is the resultant of earth graviational pull and the applied upward force.

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A student drops a ball from the top of a tall building; it takes 2.9 s for the ball to reach the ground.
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<h2><u>We have</u>,</h2>

  • Initial velocity (u) = 0 m/s
  • Time taken (t) = 2.9s
  • Acceleration due to gravity (g) = + 10 m/s² [Down]

<h2><u>To calculate</u>,</h2>

  • Final velocity (v)
  • Height (h)

<h2><u>Solution</u><u>,</u></h2>

→ v = u + gt

→ v = 0 + 10(2.9)

→ v = 29 m/s \qquad … ( Ans )

And,

→ h = ut + ½gt²

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→ h = 5 × 8.41

→ h = 42.05 m \qquad … ( Ans )

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