Question
The ____ is used to check whether the flow is laminar or turbulent.
Answer
The Reynolds number is used to check whether the flow is laminar or turbulent.
Laminar flow occurs at Low Reynolds numbers
ρ = density of fluid
V = velocity
L = diameter of pipe
μ = dynamic viscosity of the fluid
Reynolds number is dimensionless
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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.