A duct of constant diameter with fan and some resistance heaters are the basic scheme of the hair dryer. At inlet, air has density of 2 kg/m^3 and at outlet, due to heating effect it drops to 0.25 kg/m^3. Determine the change in velocity in percentage if inlet velocity is 1 m/sec? 400% increase 300% decrease 300% increase 400% decrease
A duct of constant diameter with fan and some resistance heaters are the basic scheme of the hair dryer. At inlet, air has density of 2 kg/m^3 and at outlet, due to heating effect it drops to 0.25 kg/m^3. Determine the change in velocity in percentage if inlet velocity is 1 m/sec? 400% increase 300% decrease 300% increase 400% decrease
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 duct of constant diameter with fan and some resistance heaters are the basic scheme of the hair dryer. At inlet, air has density of 2 kg/m^3 and at outlet, due to heating effect it drops to 0.25 kg/m^3. Determine the change in velocity in percentage if inlet velocity is 1 m/sec?
400% increase
300% decrease
300% increase
400% decrease
no change
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