Two parallel surfaces move relative to each other are separated by a gap of 0.375 in. The gap is filled by a fluid of with .00431 lb-sec/in2 viscosity. The relative motion is resisted by a shear stress of 0.25 lb/in2 due to the viscosity of the fluid. What is the velocity of the parallel surfaces above assuming the velocity gradient in the space between the surfaces is constant?

Two parallel surfaces move relative to each other are separated by a gap of 0.375 in. The gap is filled by a fluid of with .00431 lb-sec/in2 viscosity. The relative motion is resisted by a shear stress of 0.25 lb/in2 due to the viscosity of the fluid. What is the velocity of the parallel surfaces above assuming the velocity gradient in the space between the surfaces is constant?

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.10P: A differential equation is d2ydt2=Ay2+Byt where y represents a distance and t is time. Determine the...

See similar textbooks

Similar questions

A body weighing 77 lb with a flat surface area of 8 ft2 slides down a lubricated inclined plane making a 350 angle with the horizontal. For viscosity of 0.002089 lb-s/ft2 and a body speed of 6 ft/s, determine the lubricant film thickness in inches
Question 5 5.1 Water is pumped out of a tank through a pipe, 50mm in diameter.The dynamic viscosity of the water is 1,308 x 10-3 kg/ms.The velocity of the water in the pipe is 0.55m/s.Determine : 5.1.2 How long it will take to pump 1200 liters of water out of the tank
As shown in Fig. 1.12, a horizontal interface 0-0 exists between two immiscible liquids. The dynamic viscosity of these two liquids are 0.14 Pa sand 0.24 Pa s respectively. The thickness is d1 0.8 mm and d2 1.2 mm respectively. Assuming that the velocity gradient is linear. Find theforce F required to push a bottom area A 1000 cm2 wood board to movewith velocity v0 0.4 m/s along the surface?
Two parallel surfaces move relative to each other at a velocity of 20 in/sec and are separated by a gap of .625 in. The gap is filled by a fluid of unknown viscosity. The relative motion is resisted by a shear stress of .4 lb/in2 due to the viscosity of the fluid. If the velocity gradient in the space between the surfaces is constant, determine the viscosity of the fluid and the approximate type of material.
The sliding plate viscometer shown below is used to measure the viscosity of a fluid. The top plate is moving to the right with a constant velocity of 10 m s in response to a force of 3 N. The bottom plate is stationary. What is the viscosity of the fluid? Assume a linear velocity distribution.
A flat area 1.5x106mm² is pulled with a speed of 0.4m/s relative to another plate located at a distance of 0.15mm from it. Find the force and power required to maintain this speed, if the fluid separating them is having viscosity as 1 poise.
A gas whose viscosity is 0.98 centipoise flows through a tube 1.0 mm in diameter and 200 mm long. Find the volume in cubic centimeters of the gas which passes through the tube every 10 secs at a pressure of 2 atm.
27. The space between two square flat parallel plates is filled with oil. Each side of the plate is 560 mm. the thickness of the oil film is 10 mm, the upper plate, which moves at 2.8 m/s requires a force of 92 N to maintain the speed. Determine a) the dynamic viscosity of oil in poise, b) the kinematic viscosity of the oil in stokes if the specific gravity of the oil is 0.75. And also draw the neat sketch. i) Dynamic viscosity of oil =________________ Poise. ii) Kinematic viscosity of oil =__________________ Stokes.
A tape, of width w = 25.40 mm is to be coated on both sides with a lubricant by drawing in through narrow gap of length, L as depicted in Figure 2. Following below values are given:c = 0.300 mm, t = 0.381 mm, and L = 20.0 mm.The lubricant, of dynamic viscosity  = 1.0054 kg/m.s completelys fills the gap and the velocity distribution is asssumed to linear as shown in Figure 2. The maximum allowable force in tape is given as F = 30.04 N. Find the maximum allowable tape speed.
A 2.5 inches diameter by 3.75 inches long and 360° bearing turns at 1,200 RPM and consumes 0.1 Hp in friction. Find the total load for the bearing if the film is at a temperature of 175°F (Viscosity = 0.000 001 03 lb sec/sq.in.), and using SAE 10 Oil with r/c = 1,000
If the viscosity is 0.0144 stokes what is the equivalent kinematic viscosity in m^2/s? (answer in long decimal form)
In between plates the oil thickness is 27 mm maintained and the top plate moves at 68 cm/s. Find the velocity gradient per sec. the velocity gradient in per sec