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Which outcome arises because an industrial mixing blade reaches high rotational speed in a viscous liquid?

A)Increased energy dissipation as heat
B)Cavitation-induced blade material erosion
C)Formation of a stable Karman vortex
D)Decreased fluid pressure near impeller

💡 Explanation

Increased energy dissipation occurs because fluid friction due to the liquid's viscosity converts kinetic energy into thermal energy increases substantially with speed; therefore heat is generated, rather than pressure drop occurring near the impeller.

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