Carbon steel (AISI 1010) shafts of 0.15-m diameter are heat treated in a gas-fired furnace whose gases are at 1000 K and provide a convection coefficient of 90 W/m²K. If the shafts enter the furnace at 300 K, how long must they remain in the furnace to achieve a centerline temperature of 800 K? (k=51.2 W/mK, c=541 J/kgK, p=7832 kg/m³, a=1.21x10-5 m²/s) a. 2802 s O b. 1732 s О с. 1636 S O d. 2212 s е. 1558 s

Carbon steel (AISI 1010) shafts of 0.15-m diameter are heat treated in a gas-fired furnace whose gases are at 1000 K and provide a convection coefficient of 90 W/m²K. If the shafts enter the furnace at 300 K, how long must they remain in the furnace to achieve a centerline temperature of 800 K? (k=51.2 W/mK, c=541 J/kgK, p=7832 kg/m³, a=1.21x10-5 m²/s) a. 2802 s O b. 1732 s О с. 1636 S O d. 2212 s е. 1558 s

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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