Question
The Venturi tube demonstrates that as cross-sectional area ____.
Answer
The Venturi tube demonstrates that as cross-sectional area decreases from point 1 to point 2, the linear speed must increase.
The average height of the horizontal tube remains constant, so pgh remains constant at points 1 and 2
As the dynamic pressure increases, the absolute pressure must decrease at point 2, causing the column of fluid sticking up from the Venturi tube be to be lower at point 2
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____ are physical quantities that have both magnitude and direction .
Vectors are physical quantities that have ____ .
____ are quantities that have only a magnitude .
Scalars are quantities that have ____.
For vector addition , use the ____.
For vector ____, use the tip-to-tail method, or you can break the vector into its component parts and use the Pythagorean Theorem.