Question: Q1. a) Please explain the difference between kg-mass and kg-force. b) Define internal, external, and open channel flows. c) What is viscosity? How does

Q1. a) Please explain the difference between kg-mass and kg-force. b) Define

Q1. a) Please explain the difference between kg-mass and kg-force. b) Define internal, external, and open channel flows. c) What is viscosity? How does the dynamic viscosity change in liquids and gases with temperature? d) You may have noticed that dams are much thicker at the bottom. Explain why dams are built that way. Water 25 m Figure Qld 60 60

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