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2 cards from this section. Quick, good the night before a test.
What does conservation of mass imply in fluid mechanics?
Consider the basic laws of physics regarding mass.
Define steady flow in the context of fluid mechanics.
Think about how water flows from a tap.
Which principle states that mass cannot be created or destroyed?
Think of how water in a glass doesn't appear to vanish.
True or False: In steady flow, the fluid properties at a specific point change over time.
Consider if you're observing changes in a flowing river.
A water jet of density 1000 kg/m³ exits a pipe at 5 m/s. Calculate the force exerted on the wall of the pipe if the exit area is 0.2 m².
Think about how to calculate mass flow rate.
Two fluids at different velocities enter a junction: Fluid A at 3 m/s and Fluid B at 6 m/s. If the cross-sectional areas are known, find the resultant force acting at the junction due to the exiting flow.
Compare areas and how they influence velocity.
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