Question

Explain two ways in which the COVID 19 pandemic has exposed The social injustice that mainly exist in The disadvantaged communities in South African

Answer 1

Answer:

A lubricating oil of viscosity 1 poise and specific gravity 0.9 is pumped through a 30mm diameter pipe. If the pressure drop per meter length of pipe is 20kN/m2, determine:

i) The mass flow rate in kg/min,

ii) The shear stress at the pipe wall,

iii) The Reynolds number of flow and,

iv) The power required per 50 m length of the pipe to maintain the flow.