If a time function contains no frequency components higher than W Hz, then the time functions can be completely determined by specifying its ordinates ati a series of points spaced every sec. 2W or less?

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.