Question
A hypodermic needle is 3.22 cm in length and 0.21 mm in diameter. What pressure difference between the input and output of the needle is required so that the flow
rate of water through it will be 1 g/s? (Use 1.0 x 10- Pa s as the viscosity of water.)

Image Transcription

A hypodermic needle is 3.22 cm in length and 0.21 mm in diameter. What pressure difference between the input and output of the needle is required so that the flow rate of water through it will be 1 g/s? (Use 1.0 x 10- Pa s as the viscosity of water.)

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Fluid Mechanics

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