'Displacement' is the distance and direction between the starting point and
ending point, regardless of the path followed to get there.
A particle that's executing simple harmonic motion is always in the same place
where it was one time period ago, and where it will be later after another time
period has passed.
So its displacement during exactly one time period is exactly zero.
I believe that the answer to the question provided above is in a supercooling the effect of stirring is that is acts as catalyst that hastens the cooling effect.
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
Answer:
35.36776 Hz
Explanation:
B = Magnetic field = 
= Maximum voltage = 20 V
d = Diameter of coil = 40 cm = 0.4 m
A = Area = 
N = Number of turns = 500
= Angular velocity
Maximum emf is given by

The angular velocity would be 35.36776 Hz