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D- Steel ball 12 mm in diameter is heated to 1150K and then slowly cooled to 400 K in an air environment for which T 325 K and h = 20W /m K. Assuming the properties of the steel to be k = 401W /m K p=7800 kg/m', and c, 600 k.J/kg K ., estimate the time required for the cooling process.

D- Steel ball 12 mm in diameter is heated to 1150K and then slowly cooled to 400 K in an air environment for which T 325 K and h = 20W /m K. Assuming the properties of the steel to be k = 401W /m K p=7800 kg/m', and c, 600 k.J/kg K ., estimate the time required for the cooling process.

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
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b- Steel ball 12 mm in diameter is heated to 1150 K and then slowly cooled to 400 K in an air environment for which T = 325 K and h= 20W /m K. Assuming the properties of the steel to be k = 401W /m K p= 7800kg/m, and c, = 600 k.J /kg K ., estimate the time required for the cooling process.
Transcribed Image Text:b- Steel ball 12 mm in diameter is heated to 1150 K and then slowly cooled to 400 K in an air environment for which T = 325 K and h= 20W /m K. Assuming the properties of the steel to be k = 401W /m K p= 7800kg/m, and c, = 600 k.J /kg K ., estimate the time required for the cooling process.
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