Answer:
The speed of the ball is 9.07 m/s.
Explanation:
Given that,
Mass of the lead ball, m = 55 kg
Height of the tower, h = 55 m
We need to find the speed of the ball it has traveled 4.20 m downward, x = 4.2 meters
The initial speed of the ball will be 0 as it was at rest initially. Let v is the speed of the ball after it has traveled 4.20 m downward. It is a case of equation of motion such that :
Here, a = g
v = 9.07 m/s
So, the speed of the ball is 9.07 m/s. Therefore, this is the required solution of given condition.
A group of objects that orbit a star is called a planet.
<h3>What is star?</h3>
A small sized object that enlightens in the night sky in the infinite universe.
The group of objects is a large sized object which orbits a star called Sun.
This group of object is called planets.
Thus, a group of objects that orbit a star is called a planet.
Learn more about star.
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Answer:
Neuroticism
Explanation:
Neuroticism. The final Big Five personality trait is neuroticism. This is associated with negative emotions such as anxiety, depression, anger, and emotional instability.
The answer is B that is Constructive interference will occur, causing the new wave to have more energy than Wave A or Wave B.
This is because whenever waves meet in phase that is trough on trough or crest on crest a constructive interference occurs.
Constructive interference means that the waves will now possess more energy, typically summing up booth of the troughs or crests energy.
A destructive interference only occurs when waves are out of phase.
