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Aleonysh [2.5K]
3 years ago
10

Sara places a cold bottle of water in the sun. After several minutes, she notices that water droplets are collecting on the outs

ide of the bottle. Which change of state does this illustrate? sublimation vaporization condensation deposition
Physics
2 answers:
Anettt [7]3 years ago
6 0
This is called condensation I hope this helps
jonny [76]3 years ago
5 0
<h3><u>Answer;</u></h3>

Condensation;

<h3><u>Explanation;</u></h3>
  • <em><u>Condensation is the process by which matter is gaseous state change to liquid state. For example in this case, water vapor which is in gaseous state changes to become liquid water and that is why Sara observed water droplets collecting on the outside of the bottle.</u></em>
  • <em><u>During the process of condensation, molecules of a gas slow down, then come together to form a liquid. Gaseous molecules transfer energy to cooler objects such as the cold bottle and slow down and their attractions make them to join together and form liquid.</u></em>
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(a) This is a freefall problem in disguise - when the ball returns to its original position, it will be going at the same speed but in the opposite direction. So the ball's final velocity is the negative of its initial velocity.

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-2v_i=at\implies-2\left(8\,\dfrac{\mathrm m}{\mathrm s}\right)=\left(-2\,\dfrac{\mathrm m}{\mathrm s^2}\right)t\implies t=8\,\mathrm s

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