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Questions and Answers
What is a perfect fluid?
What is a perfect fluid?
- A non-existent fluid assumed to have no viscosity or compressibility (correct)
- A real fluid with high viscosity and compressibility
- A fluid with compressibility but without viscosity
- A fluid with viscosity but without compressibility
Why is pressure considered a scalar quantity?
Why is pressure considered a scalar quantity?
- Because it depends on the surface area of the object
- Because it has both magnitude and direction
- Because it is always positive
- Because it is proportional to the magnitude of the force (correct)
What is gauge pressure based on?
What is gauge pressure based on?
- Perfect vacuum
- Hydraulic pressure
- Atmospheric pressure (correct)
- Surface tension
How is the weight of water in the mattress calculated?
How is the weight of water in the mattress calculated?
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What distinguishes absolute pressure from gauge pressure?
What distinguishes absolute pressure from gauge pressure?
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