Answer: Sound Energy
Sound Energy
Explanation:The vibrations produced by the ringing bell causes waves of pressure that travel or propagate through the medium that is air. Sound energy is a form of mechanical energy that is generally associated with the motion and position of the ringing bell.
This imply that the force applied by the gravity of the earth on the person, is equal to the force applied by the person on the earth.
According to the Newton's third law, for every force there is an equal reaction force, in the case of person standing on the earth, the gravity of the earth pulls the person by the same magnitude as the force applied by the person on the earth (which is equal to the weight of the person)..
Explanation:
Newton's second law simply says that the net force on an object is equal to the object's mass times its acceleration.
∑F = ma
For example, think of a game of tug-of-war, in which two teams pull on a rope in opposite directions.
If the forces are equal (balanced), then the net force is 0 N, so Newton's second law tells us that the rope's acceleration is 0 m/s².
If the forces are not equal (unbalanced), then the net force is not 0 N, and the rope will accelerate in the direction of the net force.
To solve this exercise, it is necessary to apply the concepts on the principle of superposition, specifically on constructive interference,
Constructive interference (light spot) is defined by
Where,
m = The integer m is called the interference order and is the number of wavelengths by which the two paths differ.
d = Distance
For smaller angles 
,
From the trigonometric properties it is understood that so the is - in this case - the length measured vertically by reason of distance, that is
Re-arrange to find y,
Replacing our values
PART B) To calculate the intensity it is necessary to find the angle between the previously calculated height and distance in order to calculate the phase angle, in other words,
Therefore phase angle is
The intensity formula would then be given by,
