1) When doing the dimensional analysis, the model fluid should be the same with prototype fluid. True or False 2) What is the unit of Reynolds number (Re)? a) Dimensionless b) m/s c) m2/s   d) m/s2

Need only a handwritten solution only (not a typed one).

For Cairo Egypt in January the average net radiation 40 W/m2, temperature is 14°C. relative humidity is 65%, and wind speed is 2.0 m/s measured @ a height of 2.0 m. Compute the evaporation rate by a) energy b) aerodynamic c) Combined d) Priestley-Taylor Method Zo=0.03

The characteristic length of the space shuttle is 29 meters and the mean free path of molecules is about 10 meters. Which one of these is true? a)The continuum fluid mechanics is valid but we can not determine fluid properties there b)The fluid properties can not be determined due to high value of mean free path c)The fluid properties can be determined by using continuum approach d)Since molecular theory is valid there, we can determine the properties of the system e)None