Viscosity: A fluid is flowing with an average speed of 1.5 m/s through a tube that has a radius of 2.0 mm and is 18 cm long. The drop in pressure is 967 Pa. What is the viscosity of the fluid?
A. 0.0018 N ? s/m2
B. 0.0056 N ? s/m2
C. 0.028 N ? s/m2
D. 0.013 N ? s/m2
E. 0.0034 N ? s/m2
Answer: A
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