Ok? is this a question or what?
Answer:
Explanation:
Given
velocity at A is 
For 
velocity is increasing at 
Tangential acceleration is given by





at 


thus 
Velocity in terms of Displacement is given by



When car has traveled
th of distance i.e.




on solving we get 
Thus velocity at 

(b)Acceleration when car has traveled three-fourth the way of track
normal acceleration 

Tangential acceleration 

Net acceleration 

Answer: Isentropic process is the process in fluids which have a constant entropy.
Explanation: The isentropic process is considered as the ideal thermodynamical process and has both adiabatic as well as reversible processes in internal form.This process supports no transfer of heat and no transformation of matter .The entropy of the provided mass also remains unchanged or consistent.These processes are usually carried out on material on the efficient device.
Answer:
Technician A and Technician B both are correct.
Explanation:
Technician A accurately notes that perhaps the forms of combustion process most widely used are hemispherical and cross.
Technician B also correctly notes that in several cylinder heads, cooling system and greases gaps and pathways are found.
Because of the skin depth effect, the current at high frequency tends to flow at very low depth from radius. Then at high frequency the effective cross section of the wire is narrower than at DC.
Fro example skin depth at 100 kHz is 0.206 mm (0.008”), a wire more thicker than AWG26 could be a waste of copper, better use a bunch of thin wire (Litz wire) to rise the Q factor.