6. A 25 mm diameter shaft is pulled through a cylindrical bearing as shown in thefigure. The lubricant that fills the 0.3 mm gap between the shaft and the bearing isan oil having a kinematic viscosity of 8.0 x 10 -4 m2/s and a specific gravity of 0.91.Determine the force P required to full the shaft at a velocity of 3 m/s. Assume thatthe velocity distribution between the gap to be linear.BearingLubricantShaftAnswer:a.force PN 2. A can has a capacity of 350 mL when full. The mass of the can when empty is 0.20 N and when the can is fullwith a certain liquid, the total mass is 0.45 kg. Determine the specific weight, density, and specific gravity ofthe liquid.Answers:a.specific weightN/m3b.densitykg/m3С.specific gravity

Answered: Image /qna-images/answer/db7c0a81-1957-45ff-84b2-4022b2600e3c.jpg

Answered: A 25 mm diameter shaft is pulled…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A shaft 70-mm in diameter is being pushed at a speed of 400mm/s through a bearing sleeve 70.2-mm in diameter and 250mm long. The clearance is filled with oil with a kinematic viscosity of v = 0.005 ?2/? and SG=0.9. Find the frictional resistance exerted by the oil on the shaft in Newtons (N). And when the shaft is fixed axially and rotated inside the sleeve at 2000 rpm, determine the resisting torque exerted by the oil and the power required to rotate the shaft in kiloWatts (kW).
A 25 mm diameter shaft is pulled through a cylindrical bearing as shown below. The lubricant that fills the 0.3 mm gap between the shaft and bearing is an oil with dynamic viscosity of 0.728 Pa.s. Determine the force F required to pull the shaft at a velocity of 3 m/s. Assume the velocity distribution in the gap is linear. Please check the photo attached for Diagram.
steel tape 0.5 mm thick and 20 mm wide is pulled by a force F through a slit opening 1.5 mm and length 15 mm. Considering that the tape is centered on the slit, that lubricating oil of viscosity µ = 0.4 Nm-2s? fills the gap spaces not occupied by the tape and that the maximum tape speed is 10 m/s, calculate the maximum force F. Expected Answer: Maximum Force = 4.8N
A liquid with kinematic viscosity of 3 centi stokes and specific weight 9 kN/m3 fills the space between a large stationary plate and a parallel plate of 475 mm square, the film thickness being 1 mm. If the smaller plate is to be pulled with uniform velocity of 4 m/s, determine the force required if the liquid film is maintained all through.
A 25-mm-diameter shaft is pulled through a cylindrical bearing as shown in the figure below. The lubricant that fills the 0.3-mm gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0×10-4 m2/s and a specific gravity of 0.91. Determine the force P (in N) required to pull the shaft at a velocity of 3 m/s. Assume the velocity distribution in the gap is linear.
40-mm-diameter shaft is pulled through a cylindrical bearing as shown in the figure. The lubricant that fills the 0.4mm gap between the shaft and bearing is oil having a kinematic viscosity of 6×10-4 m2 /s and a specific gravity of 0.91. Determine the force P required to pull the shaft at a velocity of 4m/s. Assume the velocity distribution in the gap is linear.
A piston has a 6 "diameter where a 6.008" bore riser slides. The piston is 6 In.long and weighs 2.2 Ib. Determine the terminal velocity of the piston if it is lubricated with oil with a viscosity of 0.020 Ib-s / ft2.
By means of a torque T, a disk 1 is rotated with an angular velocity w1. In the gap "between the two disks shown there is an oil of viscosity. If disk 2 rotates freely under the action of disk 1 and both disks have a diameter D. Determine the expression for rotation w of disk 2, neglecting external effects.
A cylinder of 125mm radius rotates concentrically inside a fixed cylinder of 130mm radius. Both cylinders are 300mm long. Determine the viscosity of the liquid which fills the space between the cylinders if a torque of 0.88 N-m is required to maintain an angular velocity of 2π radians/sec. Assume the velocity gradient to be straight line.
A shaft 70-mm in diameter is being pushed at a speed of 400mm/s through a bearing sleeve 70.2-mm in diameter and 250mm long. The clearance is filled with oil with a kinematic viscosity of v = 0.005 ?2/? and SG=0.9. Find the frictional resistance exerted by the oil on the shaft in Newtons (N).
Determine the force required to drag a thin plate placed in themiddle of two parallel plates 24 mm apart with the space filledwith a fluid of viscosity 0.82 Ns/m2. The area of the plate is 0.5 m2and the speed at which it is dragged is 0.6 m/s. Also find the force ifthe thin plate is at 8 mm from one of the plates.
A cylindrical vessel of radius r has in its side wall a hole in which is horizontally joined a capillary tube of inner radius r and length l, as shown in the figure. This vessel contains oil of viscosity n. Determine the rate at which the oil level in the vessel falls as a function of height H.

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