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A square metal plate 1.8 m side and 1.8 mm thick weighing 60 N is to be lifted through a vertical gap of 30 mm of infinite extent (Fig. (1)). The oil in the gap has a specific gravity of 0.95 and viscosity of 3 N.s/m?. If the metal plate is to be lifted at a constant speed of 0.12 m/s, find the force required. Oil 1.8 mm 30'mm- W = 60 N Fig. 1 0.2254 KN 0.5224 KN 224.5 N Nothing mentioned 252.4 N

A square metal plate 1.8 m side and 1.8 mm thick weighing 60 N is to be lifted through a vertical gap of 30 mm of infinite extent (Fig. (1)). The oil in the gap has a specific gravity of 0.95 and viscosity of 3 N.s/m?. If the metal plate is to be lifted at a constant speed of 0.12 m/s, find the force required. Oil 1.8 mm 30'mm- W = 60 N Fig. 1 0.2254 KN 0.5224 KN 224.5 N Nothing mentioned 252.4 N

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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A square metal plate 1.8 m side and 1.8 mm thick weighing 60 N is to be lifted through a vertical gap of 30 mm of infinite extent (Fig. (1)). The oil in the gap has a specific gravity of 0.95 and viscosity of 3 N.s/m?. If the metal plate is to be lifted at a constant speed of 0.12 m/s, find the force required. Oil 1.8 mm 30 mm- W = 60 N Fig. 1 0.2254 KN 0.5224 KN 224.5 N Nothing mentioned 252.4 N
Transcribed Image Text:A square metal plate 1.8 m side and 1.8 mm thick weighing 60 N is to be lifted through a vertical gap of 30 mm of infinite extent (Fig. (1)). The oil in the gap has a specific gravity of 0.95 and viscosity of 3 N.s/m?. If the metal plate is to be lifted at a constant speed of 0.12 m/s, find the force required. Oil 1.8 mm 30 mm- W = 60 N Fig. 1 0.2254 KN 0.5224 KN 224.5 N Nothing mentioned 252.4 N
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