A runner stood at the 100-meter mark on a track. When the timer started, the runner sprinted north to the 200-meter mark. It too
1 answer:
Answer:
4m/sec north
Explanation:
Given the runner sprinted from 100m mark to 200m mark, which means the displacement of the runner is 200-100=100m.
Now given the time taken to travel this 100 distance is 25 seconds
We know that Average velocity =
Average velocity = = 4 m/sec.
We can observe from the above formulae that the direction of the average velocity is in the direction of the displacement which is given north.
Therefore the Average velocity of the runner is 4m/sec north
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Explanation:
Le Chatelier's principle states that for a long period of time if a system is at equilibrium and it is subjected to change in concentration, temperature, volume or pressure then the system shifts to a new equilibrium.
This change will partly counter acts the applied change.
Therefore, when heat is added to the system then equilibrium will shift to the side where temperature or heat is reduced again.
For example,
Since heat is added to the system, hence, system will shift to the left side or we can say equilibrium will shift to the backward direction.