Practice Momentum Flux Changes (4.1.4) - Mass Conservation Equation - Fluid Mechanics

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6 sample questions

Question 1.
What is the formula for calculating inflow and outflow in a fluid system?
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Think about the principle of mass conservation.
Question 2.
Define momentum flux.
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Consider the relationship between mass and velocity.
3Question 3.
What is the principle of mass conservation in fluid dynamics?
- Mass is created in a closed system.
- Mass is destroyed in a closed system.
- Mass is conserved in a closed system.
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Recall the fundamental law of conservation.
4Question 4.
Reynolds Transport Theorem relates momentum flux to what?
- True
- False
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Think about its application in momentum studies.
Question 5.
A jet of fluid with a density of 800 kg/m³ and velocity of 10 m/s strikes a barrier of area 0.05 m². Determine the force exerted by the jet on the barrier.
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Use the concept of momentum flux in your calculations.
Question 6.
If a spacecraft discharges fuel at a rate of 0.1 kg/s with a speed of 300 m/s, what is the thrust produced?
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This formula relates closely to momentum conservation.

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