Answer: 1 : an observable fact or event. 2a : an object or aspect known through the senses rather than by thought or intuition. b : a fact or event of scientific interest susceptible of scientific description and explanation. More from Merriam-Webster on phenomenon.
Displacement will be zero.
<h3>What is displacement and how is it different from distance?</h3>
Displacement:
- It is the shortest distance between an object's beginning position and ending position.
- The quantity is a vector.
- It may be zero, positive, or negative.
- Displacement may be greater than or equal to distance.
In the given question, we start from one point and finish at the same point around the circular track. Therefore there is no distance between the initial and final points because they are the same. That's why the displacement is zero.
Distance:
- It is the actual path or distance that an object takes to go from its starting point to its finishing point.
- The quantity is a scalar one.
- It cannot be 0 or negative; it must be positive.
- Displacement and distance may be equal.
Learn more about displacement here:
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Answer:
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Explanation:
All potential and kinetic energy is transferred into heat. Therefore keeping the law of conservation of energy valid. No energy is created nor destroyed only changing shape.
A spontaneous reaction is a term that is best describe to a type of reaction wherein it is started without even with the help of an outside force. In addition to that, this kind of reaction is commonly driven by the forces of enthalpy and entropy which are essential concepts to thermodynamics.