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dexar [7]
3 years ago
8

Which material reflects the most light transparent, translucent, or opaque?

Physics
1 answer:
Svetradugi [14.3K]3 years ago
6 0
There's no rule like that.  A glass mirror is opaque but reflects
more light than a clean transparent glass window does. 

On the other hand, a material that's transparent but shiny may
reflect more light than an opaque material that's painted black. 

You can't give any general rule.
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Answer:

<em>v=40 m/s south</em>

Explanation:

<u>Momentum </u>

It's a physical magnitude that measures the product of the mass by the velocity of a particle. Its units in the International System is kg.m/s and the formula is

p=m.v

Where m is the mass and v the velocity of the particle. If we wanted to solve for v, we have

\displaystyle v=\frac{p}{m}

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\displaystyle v=\frac{6}{0.15}=40\ m/s

The velocity is directed to the south

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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.
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<h3>What's the acceleration of the ball at the highest point of projectile?</h3>
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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.

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D- the ball's velocity points downward.

Learn more about the projectile motion here:

brainly.com/question/24216590

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