Answer:
Explanation:
Given
initial angular velocity is 
when motor is turned of it started decelerating with
angular acceleration
angle turned before coming to halt

here final angular velocity is zero


No of revolutions will be 

Perilymph of scala vestibule; endolymph of cochlear duct; perilymph of scala tympani
Answer:
v = 66.7 m/s
Explanation:
Given that,
The length of steel cable, L = 600 m
Diameter = 1.2 cm
It is observed that it took 18 s for the pulse to return.
The time taken to cover 600 m will be :
t = T/2
t = 9 s
Let v be the of the pulse. We know that,

So, the speed of the pulse is equal to 66.7 m/s.
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