When a fluid flows through a sharp bend low pressures may

Question

1.A liquid has a specific weight of 59lb/ft³ and a dynamicviscosity of 2.75 lb*s/ft². Determine itskinematic viscosity

2.When a fluid flows through a sharp bend, low pressures may developin localized regions of the bend. Estimate the minimumabsolute pressure (in psi) that can develop without causingcavitation if the fluid is water at 160 oF.

3.why HF (hydrogen fluoride) has higher boiling temperature than HCl (hydrogen chloride), even thought HF has lower molecular weight?

4.Does anyone know MAPLE to figure out how to use it to separate real and imaginary components of a complex expression?Which commands to use etc.?