An error was reported in a software program by a user. Before that error can be diagnosed and fixed it must be reproduced.
it must be beta tested,
the code must be rewritten.
the code must be debugged.

Afan that can provide air speeds up to 60 m/s is to be used in a low-speed wind tunnel with atmospheric air at 35 c. if one wishes to use the wind tunnel to study flat-plate boundary layer behavior up to reynolds numbes of re 10, what is the minimum plate length that should be used? at what distance from the leading edge would transition occur if the critical reynolds nurnber were rer,e = 5 × 105?