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A measure of the internal friction inside a fluid is its:
AVorticity
BVolume
CViscosity
DVelocity
Answer & Solution
Correct answer: C. Viscosity
1. Layers rub against one another.
2. Thick oils have a lot of it.
3. It is viscosity.
_Source: OpenStax University Physics Volume 1, Chapter 14, Fluid Mechanics._
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