18. A 20 mm wide gap between two vertical planesurfaces is filled with an oil of specific gravity0.85 and dynamic viscosity 2.5 N.s/m. A metalplate 1.25 m x 1.25 m × 2 mm thick and weigh-ing 30 N is placed midway in the gap. Determinethe force required to lift the plate with a constantvelocity of 0.18 m/s.[Ans. 160.2 N]

Answered: Image /qna-images/answer/fd1d7578-6cb6-4e2e-a4db-b4eccc30acf8.jpg

18. A 20 mm wide gap between two vertical plane surfaces is filled with an oil of specific gravity 0.85 and dynamic viscosity 2.5 N.s/m?. A metal plate 1.25 m × 1.25 m × 2 mm thick and weigh- ing 30 N is placed midway in the gap. Determine the force required to lift the plate with a constant velocity of 0.18 m/s. [Ans. 160.2 N]

18. A 20 mm wide gap between two vertical plane surfaces is filled with an oil of specific gravity 0.85 and dynamic viscosity 2.5 N.s/m?. A metal plate 1.25 m × 1.25 m × 2 mm thick and weigh- ing 30 N is placed midway in the gap. Determine the force required to lift the plate with a constant velocity of 0.18 m/s. [Ans. 160.2 N]

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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