Please help me do this with my exam tomorrow. Indicate the target item of the time to use, preserve and turn it in time. In your family and locality, what methods of harvesting, management and processing do you apply? Ex example

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.