A horizontal syringe is used to make an injection into a vein (Fig. 3). The barrel of the syringe has an area of A1= 2.50 x 10-5 m2 . The needle has an area of A2= 1.00 x 10-8 m2 . A force of 2.00 N is applied to the circular piston. Assume that the gauge pressure inside the vein is 80.0 mm of mercury and the density of the fluid injected is that of water (1.00 x103 kgm-3 ). Neglect the viscosity of the fluid. [given 1atm=1.01 x105 Pa ].(a) What is the absolute pressure (in pascals) in the barrel of the syringe? (b) What is the absolute pressure (in pascals) in the vein if the density of mercury is pHg =13.6x103 kgm-3(c) Determine the speed of the fluid in the needle. (not drawn to scale)F = 2.00 NA, = 2.50×10³m?A, =1.00×10°m²Fig. 3

(a)A force applied to the circular piston,

Answered: (not drawn to scale) F = 2.00 N A, =…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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A horizontal syringe is used to make an injection into a vein (Fig. 3). The barrel of the syringe has an area of A1= 2.50 x 10^-5 m² . The needle has an area of A2= 1.00 x 10^-8 m² . A force of 2.00 N is applied to the circular piston. Assume that the gauge pressure inside the vein is 80.0 mm of mercury and the density of the fluid injected is that of water (1.00 x10³ kgm^-3 ). Neglect the viscosity of the fluid.
[given 1atm=1.01 x10⁵ Pa ].
(a) What is the absolute pressure (in pascals) in the barrel of the syringe? (b) What is the absolute pressure (in pascals) in the vein if the density of mercury is p_Hg =13.6x10³ kgm^-3(c) Determine the speed of the fluid in the needle.

(not drawn to scale)
F = 2.00 N
A, = 2.50×10³m?
A, =1.00×10°m²
Fig. 3

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