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docker41 [41]
2 years ago
6

Hydrostatic equilibrium in the Sun means that Choose one: A. energy produced in the core per unit time equals energy emitted at

the surface per unit time. B. pressure balances the weight of overlying layers. C. the Sun absorbs and emits equal amounts of energy. D. the Sun does not change over time.
Physics
1 answer:
kati45 [8]2 years ago
8 0

Answer: Hydrostatic equilibrium in the Sun means that pressure balances the weight of overlying layers.

Explanation: To find the answer, we have to know more about the Hydrostatic equilibrium in sun.

<h3>What is Hydrostatic equilibrium in sun?</h3>
  • Hydrostatic equilibrium in sun means that, the sun is neither expanding not contracting.
  • We can say that the forces that control the sun are precisely balanced.
  • The structure of the sun is in such a way that it can balance the pressure outward and the force of gravity inward.
  • This balance is known as hydrostatic equilibrium.

Thus, we can conclude that, the Hydrostatic equilibrium in the Sun means that pressure balances the weight of overlying layers.

Learn more about the hydrostatic equilibrium in sun here:

brainly.com/question/28044769

#SPJ4

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Where they slide over each other.

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In a transform boundary, neither plate is added to at the boundary nor destroyed.  They are marked in some places by features like  stream beds that have been split in half and the two halves moved in opposite directions.



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A pendulum has 918 J of potential energy at the highest point of a swing. How much kinetic energy will it have at the bottom of
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The kinetic energy at the bottom of the swing is also 918 J.

Assume the origin of the coordinate system to be at the lowest point of the pendulum's swing. A pendulum, when raised to the highest point has potential energy since it is raised to a height h above the origin. At the highest point, the pendulum's velocity becomes zero, hence it has no kinetic energy. Its energy at the highest point is wholly potential.

When the pendulum swings down from its highest position, it gains velocity. Hence a part of its potential energy begins to convert itself into kinetic energy. If no dissipative forces such as air resistance exist, then, the law of conservation of energy can be applied to the swing.

Under the action of conservative forces, the total mechanical energy of a system remains constant.This means that the sum of the potential and kinetic energies of a body remains constant.

When the pendulum reaches the lowest point of its swing, it is at the origin of the chosen coordinate system. Its vertical displacement from the origin is zero, hence its potential energy with respect to the origin is zero. Therefore the entire potential energy of 918 J should have been converted into kinetic energy, according to the law of conservation of energy.

Thus, the kinetic energy of the pendulum at the lowest point of its swing is equal to the potential energy it had at its highest point, which is equal to <u>918 J.</u>



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