Answer:
Implements a reordering of the letters of the alphabet.
Explanation: GIVE ME 5 STARS AND a HEART!!! Those contacts are wired across the rotor so that each contact on the left connects to the contact on the right in some scrambled arrangement. Each rotor, therefore, implements a reordering of the letters of the alphabet, which mathematicians call a permutation.
Answer:
b) false
Explanation:
We know that rate of change of momentum is called force.
So
Force = rate of change of momentum
We know that
P = m v
So
(take velocity in constant and not changing with time)
So 
So force exerted by jet depends on mass flow rate and velocity also.So our option b is right.
