Required information A smooth steel (SG = 7.86) sphere is immersed in a stream of ethanol at 20°C moving at 1.5 m/s. Take D = 0.5 cm. For ethanol at 20°C, take p= 789 kg/m³ and u= 0.0012 kg/m-s. Take n= 22/7.

Required information A smooth steel (SG = 7.86) sphere is immersed in a stream of ethanol at 20°C moving at 1.5 m/s. Take D = 0.5 cm. For ethanol at 20°C, take p= 789 kg/m³ and u= 0.0012 kg/m-s. Take n= 22/7.

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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Question

Estimate its drag in N. Take C_D ≈ 0.4.

Required information
A smooth steel (SG = 7.86) sphere is immersed in a stream of ethanol at 20°C moving at 1.5 m/s. Take D = 0.5 cm. For
ethanol at 20°C, take p= 789 kg/m3 and u= 0.0012 kg/m-s. Take n= 22/7.
Estimate its drag in N. Take CD = 0.4.
The drag is
N.

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