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A 2 m diameter satellite dish, with porosity of 0% is shaped as a porous parabolic dish, . It is used in Antarctica where the highest recorded wind speed is 327 km/hr. When winds higher than 100 km/hr are detected, the dish is automatically rotated to face away from the wind. It is mounted on a pole which is 1.7 m long, to the centre of pressure. (The drag force acts through the centre of pressure) Determine the maximum bending stress, during the storm, at the base of the pole due to the drag force. The pole is solid, with a diameter of 60 mm. At -40 degrees C, the viscosity of air is 1.5E-5 N.s/m^2 and density is 1.52 kg/m^3.

A 2 m diameter satellite dish, with porosity of 0% is shaped as a porous parabolic dish, . It is used in Antarctica where the highest recorded wind speed is 327 km/hr. When winds higher than 100 km/hr are detected, the dish is automatically rotated to face away from the wind. It is mounted on a pole which is 1.7 m long, to the centre of pressure. (The drag force acts through the centre of pressure) Determine the maximum bending stress, during the storm, at the base of the pole due to the drag force. The pole is solid, with a diameter of 60 mm. At -40 degrees C, the viscosity of air is 1.5E-5 N.s/m^2 and density is 1.52 kg/m^3.

Elements Of Electromagnetics
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 2 m diameter satellite dish, with porosity of 0% is shaped as a porous parabolic dish, . It is used in Antarctica where the highest recorded wind speed is 327 km/hr. When winds higher than 100 km/hr are detected, the dish is automatically rotated to face away from the wind. It is mounted on a pole which is 1.7 m long, to the centre of pressure. (The drag force acts through the centre of pressure) Determine the maximum bending stress, during the storm, at the base of the pole due to the drag force. The pole is solid, with a diameter of 60 mm. At -40 degrees C, the viscosity of air is 1.5E-5 N.s/m^2 and density is 1.52 kg/m^3.
Transcribed Image Text:A 2 m diameter satellite dish, with porosity of 0% is shaped as a porous parabolic dish, . It is used in Antarctica where the highest recorded wind speed is 327 km/hr. When winds higher than 100 km/hr are detected, the dish is automatically rotated to face away from the wind. It is mounted on a pole which is 1.7 m long, to the centre of pressure. (The drag force acts through the centre of pressure) Determine the maximum bending stress, during the storm, at the base of the pole due to the drag force. The pole is solid, with a diameter of 60 mm. At -40 degrees C, the viscosity of air is 1.5E-5 N.s/m^2 and density is 1.52 kg/m^3.
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