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Deffense [45]
3 years ago
5

Which statement is true about planets with longer orbits in the solar system?

Physics
2 answers:
Yakvenalex [24]3 years ago
5 0

Answer:

D They have longer seasons

Explanation:

I think this because the days will be longer so that means that the seasons will change also.

Liula [17]3 years ago
3 0

Answer:

A.They have longer periods of revolution.                      

Explanation:

From Kepler's law, we understand that:

  • The planets revolve about the Sun in elliptical paths with Sun at one foci.
  • Equal areas is swiped in equal interval of time.
  • Closer the planet, faster it moves.

Thus, planets which have longer orbits that is are farther from the Sun have longer periods of revolution. This can be directly inferred from Kepler's third law.

P² ∝ a³

where, <em>P</em> is the period and <em>a </em>is the semi-major axis.

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What is the acceleration for an object moving with constant speed? Explain your answer
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What is the acceleration of an object moving at a constant speed?

The Meaning of Constant Acceleration

The data table above show an object changing its velocity by 10 m/s in each consecutive second. This is referred to as a constant acceleration since the velocity is changing by a constant amount each second.

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A player kicks a soccer ball in a high arc toward the opponent's goal. At the highest point in its trajectory
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At the highest point in its trajectory, the ball's acceleration is zero but its velocity is not zero.

<h3>What's the velocity of the ball at the highest point of the trajectory?</h3>
  • At the highest point, the ball doesn't go more high. So its vertical velocity is zero.
  • However, the ball moves horizontal, so its horizontal component of velocity is non - zero i.e. u×cosθ.
  • u= initial velocity, θ= angle of projection

<h3>What's the acceleration of the ball at the highest point of projectile?</h3>
  • During the whole projectile motion, the earth exerts the gravitational force with a acceleration of gravity along vertical direction.
  • But as there's no acceleration along vertical direction, so the acceleration along vertical direction is zero.

Thus, we can conclude that the acceleration is zero and velocity is non-zero at the highest point projectile motion.

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: Player kicks a soccer ball in a high arc toward the opponent's goal. At the highest point in its trajectory

A- neither the ball's velocity nor its acceleration are zero.

B- the ball's acceleration points upward.

C- the ball's acceleration is zero but its velocity is not zero.

D- the ball's velocity points downward.

Learn more about the projectile motion here:

brainly.com/question/24216590

#SPJ1

7 0
2 years ago
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