Practice Steady Control Volume Form Of Newton’s Second Law (2.7)

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9 questions

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6 sample questions

Question 1.
What is the Reynolds Transport Theorem used for?
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Think about how we can look at fluids moving across boundaries.
Question 2.
Define the Continuity Equation.
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Consider inflow and outflow in a pipe.
3Question 3.
What does the Continuity Equation ensure in fluid flow?
- Mass flow rate is constant
- Mass inflow is greater than outflow
- Velocity is constant
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Think about how fluids behave in pipes.
4Question 4.
True or False: The momentum equation applies only to fluids at rest.
- True
- False
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Consider where momentum comes into play.
Question 5.
A pipe has a diameter of 0.5 m at inlet and 0.3 m at outlet. Water flows at 3 m/s at the inlet. Calculate the velocity at the outlet.
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Make sure to keep units consistent!
Question 6.
A water jet strikes a flat plate with a mass flow rate of 2 kg/s and exits perpendicular to the plate. If the plate experiences no horizontal motion, calculate the force exerted on the plate.
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Use the change in momentum to find the force.

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