Neglect losses in the cylinder and assume fully developed laminar viscous flow throughout the needle: the Darcy friction factor is 64/Re. where Re is the Reynolds number. Given that the viscosity of water is 1.0 10-3 kg/ms, the force F in newtons required on the plunger is

Neglect losses in the cylinder and assume fully developed laminar visc

1.	Neglect losses in the cylinder and assume fully developed laminar viscous flow throughout the needle: the Darcy friction factor is 64/Re. where Re is the Reynolds number. Given that the viscosity of water is 1.0 10-3 kg/ms, the force F in newtons required on the plunger is
A.	0.13
B.	0.16
C.	0.3
D.	4.4
Answer» D. 4.4

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Neglect losses in the cylinder and assume fully developed laminar viscous flow throughout the needle: the Darcy friction factor is 64/Re. where Re is the Reynolds number. Given that the viscosity of water is 1.0 10-3 kg/ms, the force F in newtons required on the plunger is

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