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lorasvet [3.4K]
3 years ago
10

Which of these statements would best explain the problem encountered with nuclear waste disposal? A) The isotopes have a long ha

lf-life and only remain radioactive for a long time period. B) The isotopes have a short half-life and only remain radioactive for a long time period. C) The isotopes have a long half-life and only remain radioactive for a short time period. D) The isotopes have a short half-life and only remain radioactive for a short time period. 
ANSWER IS A)
Physics
1 answer:
algol133 years ago
4 0
That's right, the correct answer is
<span>A) The isotopes have a long half-life and only remain radioactive for a long time period

The half life of an isotope is the time it takes for the amount of the sample to reduce to half of its initial value. If an isotope has a long half-life, it means it takes a long time to reduce down to a significant level, so it will remain radioactive for a long time period.</span>
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Answer:

A.The vertical velocity is constantly increasing as the ball falls.

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As the ball is projected horizontally so here the vertical component of the velocity is zero

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When the pendulum and roller coaster move to the top, its has more potential energy whereas when comes to the bottom has more kinetic energy.

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The transfer of potential energy to kinetic energy occur when the roller coaster move along the track. As the motor pulls the cars to the top, the body has more potential energy whereas when the body comes to the bottom , it has kinetic energy in the object.

<h3>What is the energy transfer in a pendulum?</h3>

As a pendulum swings, its potential energy changes to kinetic energy and kinetic energy changes into potential energy. At the top more potential energy is present.

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